John and Sarah had a child born with cystic fibrosis, a genetic disease. Both John and Sarah were normal, showing no signs of this disorder. How is it possible for them to have a child with this disease?
a. Cystic fibrosis must be a dominant trait disorder hidden in both parents' genotype, but not showing in the phenotype, that could be passed on to offspring.

b.Cystic fibrosis must be a recessive trait disorder hidden in both parents’ genotype, but not showing in the phenotype, that could be passed on to offspring.

c. Cystic fibrosis must be a dominant trait disorder hidden in one parents’ genotype, but not showing in the phenotype, that could be passed on to offspring.

d.Cystic fibrosis must be a recessive trait disorder hidden in one parents’ genotype, but not showing in the phenotype, that could be passed on to offspring

Answers

Answer 1

Answer:

B

My logic:

I did a whole project on genetics and i love genetics. I know for a fact this is the correct answer because i had it 2 years ago on a test and got it correct. On the off chance im wrong, it has been 2 years and i might have mixed my facts up.

Hope this helps!

Answer 2

Answer:

it is b

Explanation:

reccesive doesn show in the phenotype because its covered by the dominant trait so the parents were fine but it is both parents so that the kid has an rr and not Rr or RR so that the reccesive trait would be covered by the dominant in the phenotype so B


Related Questions

2) Fill in the blanks with the following options.
What was the environment of early earth like? Complete the statement below to answer the question.

a)wind
b)elements
c)gases
d)inorganic
e)organic
f)lightning
g)primordial

______seas absorbed______of the atmosphere, there was a heavy concentration of ultraviolet radiation from the sun, and frequent______strikes, and the environment was helpful in producing______molecules from______molecules.

Answers

Answer:

1.primordeal 2.gases 3. lightning 4.organic 5.inorganic

PRIMORDEAL seas absorbed GASES of the atmosphere,There  was a heavy concentration of ultraviolet radiation from the sun, and frequent LIGHTNING strikes, and the environment was helpful in producing ORGANIC molecules from INORGANIC  molecules.

Gases are absorbed by the primordial seas and lightning strikes in earth helpful in producing inorganic molecules from  organic molecules  mostly present in living things.

What is primordial sea?

Oceans of earth in the earlier time is called as primordial seas in the history . Primordial seas creates heavy rain last for long time.

Lightening in earth is caused by electrostatic charge from the ions in the atmosphere. Lightening is followed by thunder. Lightning helps to produce oxides and nitrogen in the atmosphere.

The passage which describes the weather in the earth can be completed as follows:

Primordial seas absorbed gases of the atmosphere, there was a heavy concentration of ultraviolet radiation from the sun, and frequent lightning strikes, and the environment was helpful in producing inorganic molecules from organic molecules.

To find more on lightning, refer here:

https://brainly.com/question/10443677

#SPJ2

Which of the following is not a cause of a tsunami?

Question 5 options:

Earthquake


Volcanoes


The moon


Landslides

Answers

The moon moon moon moon

Explanation:

moon

A Tsunami is a huge tide or a series of killer waves that have the ability to move a large quantity of water.

The Tsunamis are a product of earthquakes, landslides and volcanic eruptions as they displace a large amount of water from the land surface. Being seismic waves these Tsunamis are able to destroy property and cause havoc on life forms. The moon comparatively is located at a distance of 384,400 km and thus causes high and low tides. The moon does not possess a large gravity potential to cause a Tsunami on earth.

Hence the correct option is C.

brainly.com/question/19162159.


Help please, I know the explanation but I need the answer.

Answers

Answer:

B

Explanation:

4. All of the following are limiting factors to a population EXCEPT
A. competition
B. predation
C. human disturbances
D. immigration​

Answers

Answer: I think it is d

Among the given options, immigration is considered as the limiting factor to a population. Thus, the correct option is D.

What is Population?

A Population may be defined as the number of individuals of the same species living in a particular area at a definite time. It also represents the number of males and females in any population with respect to their characteristics.

Competition, predation, and human disturbances are responsible for the reduction of any population. This is because these factors generally involve the ultimate death of individual and health damage.

While immigration is typically a process through which an individual has come in order to live in that place. This place is not native to the individual. This increases the population of any specific region.

Therefore, among the given options, immigration is considered as the limiting factor to a population. Thus, the correct option is D.

To learn more about Immigration, refer to the link:

https://brainly.com/question/2578091

#SPJ6

What is the differnce between mitosis and cytoknesis

Answers

Answer:

Mitosis is the process in which the nucleus of a eukaryotic cell divides. Cytokinesis is the final stage of cell division, during which the cytoplasm splits into two and two daughter cells form.

Explanation:

hope this helps ya :)

Answer:

the one answered above is true

After intense activity, your muscles feel sore because of
the accumulation ofNAD+ B-
the accumulation of ATP
C- the accumulation of lactic acid D- the accumulation of carbon dioxide​

Answers

Answer:

After intense activity, your muscles feel sore because of _____. a) the accumulation of NAD+ b) the accumulation of lactic acid c) the accumulation of ATP d) the accumulation of carbon dioxide. B. ... ATPc "carbon planet," because carbon is the central element in organic compounds. ... After intense activity, your muscles feel sore because of a. the accumulation of NAD+. b. the accumulation of lactic acid. c. the accumulation of ATP. d. the accumulation of carbon dioxide. b. the accumulation of lactic acid.

Explanation:

srry if this dosent help

What are cell biology, genetics, and
molecular biology?

Answers

Answer:

Explanation:

Cell biology (also cellular biology or cytology) is a branch of biology studying the structure and function of the cell, also known as the basic unit of life. Cell biology encompasses both prokaryotic and eukaryotic cells and can be divided into many sub-topics which may include the study of cell metabolism, cell communication, cell cycle, biochemistry, and cell composition.

Genetics, study of heredity in general and of genes in particular. Genetics forms one of the central pillars of biology and overlaps with many other areas, such as agriculture, medicine, and biotechnology. Learn more about the history, biology, areas of study, and methods of genetics.

Molecular biology, field of science concerned with studying the chemical structures and processes of biological phenomena involving molecules. In particular, researchers focus on DNA, RNA, and proteins and their interactions. As a result, the field is closely related to genetics and biochemistry

The study of heredity is a field of genetics and cell biology. The DNA itself (molecular genetics), entire populations, or whole creatures are investigated at various levels of genetics (population and evolutionary genetics).

What relation between cell biology and molecular biology?

Two branches of biology are cell biology and molecular biology. The study of cellular mechanisms is a focus of the subject of cell biology.

As a result, it primarily concerns the functions and architecture of the cell. The study of molecular level mechanisms is a focus of the science of molecular biology.

Therefore, cell biology, genetics, and molecular biology are interconnected.

Learn more about cell biology and molecular biology here:

https://brainly.com/question/28782190

#SPJ2

which nuetrom delivers info to the central nervous system

Answers

Answer:

sensory neuron

Explanation:

Which statement below does NOT correctly describe water's chemical
properties?

a. Water is a neutral substance - it is neither a base or acid

b. Water is an inert substance

c. Water is not flammable or combustible

d. Water is reactive and catalyzes many reactions that take place inside living things

Answers

Answer:

b.

Explanation:

This is incorrect, because, "water is a powerful accelerator of chemical reactions."

Credit to www.astronno.com

Punnet square Rr x Rr diagram

Answers

Answer:

RR,Rr,Rr,rr

Explanation:

Answer:

RR,Rr,Rr,rr

Explanation:

Just combine all the possible combinations.

A 10.0 cm3 sample of copper has a mass of 89.6 g. What is the density of copper?

Answers

Answer:

[tex]\boxed {\boxed {\sf d=8.96 \ g/cm^3}}[/tex]

Explanation:

Density can be found by dividing the mass by the volume.

[tex]d=\frac{m}{v}[/tex]

The mass of the copper is 89.6 grams.

The volume is 10 cubic centimeters.

[tex]m=89.6 \ g\\v= 10 \ cm^3[/tex]

Substitute the values into the formula.

[tex]d=\frac{89.6 \ g }{10 \ cm^3}[/tex]

Divide.

[tex]d=8.96 \ g/cm^3[/tex]

The density of copper is 8.96 grams per cubic centimeter.

Thymine is to DNA as uracil is to
A. RNA
B. adenine
C. ATP
D. Protein

Answers

Answer:

A. RNA

Explanation:

DNA has the chemical base of thymine, while RNA does not.

Instead, RNA has the base of uracil, to replace thymine.

Since the analogy relates thymine to DNA, uracil must be related to RNA.

So, A is the correct answer.

Thymine is to DNA as Uracil is to RNA.

I believe the answer is A- rna .

Plants such as the Venus Flytrap and the Sun Dew attract and consume insects. These plants are unable to produce substances which break down the insect into compounds that are usable by the plant. The chemical compound that breaks down the insects is most likely * O ATP O Lipids O Enzymes O Vitamins​

Answers

Answer:

The chemical compound that breaks down the insects is most likely enzymes.

Explanation:

Venus flytraps and sundews are carnivorous- they consume insects to absorb nutrients via digestion. During absorption,  their cells take up molecules synthesized via the breakdown of macromolecules like carbohydrates and proteins. When regions of the plant come into contact with insects, these plants recognize specific macromolecules like chitin, they increase the production of digestive enzymes.

Forming digestive liquid enzymes are specialized proteins that function as biological catalysts to speed up reactions. They act on substrates, which can bind to specific regions of the enzyme, called the active site. Once bound in the presence of highly specific temperature and pH, enzymes increase the rate of a reaction over time.

Common enzymes found in their digestive secretions include chitinases, phosphatases, amylases, and proteinases.

A defensive soccer player is having trouble reacting quickly to the movements of the opposing player. How can the soccer player adjust her base of support to improve her reaction time?

Answers

Answer:

decrease the base of support and centralize her line of gravity

Explanation:

A wider base of support leads to an unsteady gait. The base of support is the contact between the feet of the soccer player and the surface (the field) supporting him. The root cause of the player's inability to react quickly to the movements of the opposing player is a lack of balance.

Balance is the ability of an individual to sustain the line of gravity which runs the center of gravity. For the player to regain his balance, she needs to decrease the base of support and centralize her line of gravity, so as to maintain balance.

When an antigen attacks the body, it activates adaptive immunity. This adaptive immunity produces a strong response when it encounters the same antigen for the second time. Which feature of adaptive immunity is essential for this kind of response?

Answers

Answer:

A) the ability to remember the antigen it encounters

Adaptative immunity reacts in a more general way producing nonspecific antibodies against the foreign antigen when the organism is first attacked by that foreign antigen. The second time around, when the organism is faced again with the same foreign antigen, it produces a much stronger response because it memorised the antigen and is not strange anymore so the response can be more specific, quicker, and effective.

Explanation:

Answer:

Explanation:

memory T cells plays an important role in fighting against microbe which encounter the body for second time

Activity
The picture shows five different embryos. Study the picture, and then answer the questions.
What similarities and differences do you notice among the different embryos?

Answers

Answer:

I can tell you some difference but I cant find similarities

Explanation:

they each have thier own heat area

they are each a different breed

they each have thier own cold area

they each come from a different family tree

this all I can really see I hope this helped at least a bit

Answer:

All the embryos have a similar wormlike shape, but they have different features. For example, the amphibian has a large bubble shape in the middle and the fish has a smaller bubble shape. The others don’t have a bubble shape.

Explanation:

Got it off of Edmentum :)

When marine animals die their shells decay into limestone when the limestone is exposed is released this process is known as

Answers

Answer:

fossilization

Explanation:

Explain the relationship among
homeostasis, defective mitochondria, and the
symptoms caused by LHON.

Answers

Answer:

There is an important relationship among  homeostasis, defective mitochondria, and the  symptoms caused by LHON.

Explanation:

There is a great relationship among  homeostasis, defective mitochondria and the  symptoms caused by LHON because defective mitochondria disturbs the homeostasis in the body. If mitochondria works properly, homeostasis will be maintained whereas if there is any defect occurs in the mitochondria then the whole homeostasis will be adversely affected because mitochondria is the powerhouse of the cell responsible for the production of energy for the cell. Symptoms occurs due to Leber's hereditary optic neuropathy (LHON) also effected the state of equilibrium in the body.

The relationship among homeostasis, defective mitochondria and the symptoms caused by LHON is the following:

The power center of the cell, the mitochondria are also involved in homeostasis, the maintenance of a stable internal environment even in the face of variations in the external environment.

Mitochondrial diseases can be caused by inherited mutations in mitochondrial DNA or defects in the proteins responsible for regulating mitochondrial division, affecting the body's homeostasis.

Leber's Hereditary Optic Neuropathy (LHON) is the first disease associated with a mutation in the mitochondrial genome, specifically it produces the specific degradation of neurons involved in sending information from the eye to the brain (RGC).

This disease is caused almost entirely by three mutations in mitochondrial DNA (mtDNA).

The first symptoms are blurred vision, with unilateral or bilateral onset, which over time affects and / or worsens in both eyes, with loss of visual acuity and color vision.

Vision loss is painless and is caused by degeneration of the optic nerve, specifically of the retinal ganglion cells (RGC).

 

Therefore, we can conclude that LHON is a disease associated with a mutation in the mitochondrial genome affecting the body's homeostasis.

Learn more here: https://brainly.com/question/18296870

What would happen if the smooth ER
in the cell were destroyed?
A. The cell would be unable to
produce glucose.
B. The cell would no longer be able to
produce proteins.
C. The cell would not be able to make
enough ATP through respiration.
D. The cell would not be able to make
lipids or break down poisons.

Answers

The answer is D.

If this is helpful, please mark me brainliest :)

HELP!!! MAJOR GRADE!!!!!

Gregor Mendel conducted thousands of genetic experiments using pea plants. Mendel is called the Father of Genetics because it was these studies that lead to the principles of genetics. In one of his many experiments, he crossed purple-flowered pea plants with white-flowered pea plants. Much to his surprise, all of the offspring turned out to be peas with purple flowers in appearance.

Although Mendel used the term factors instead of genes, how did Mendel explain why all the pea plants had purple flowers and not a mixture of white and purple flowers?

A.The offspring received the factors (genes) from both parents, but the genotype for purple flowers dominated over white flower pea plants.

B.The offspring only received the factors (genes) from the parent with the genotype for purple flowers and nothing from the white flower parent.

C.The offspring received the factors (genes) from both parents, but the phenotype for purple flowers dominated over the factor for white flowers.

D. The offspring only received the factors (genes) from the parent with the phenotype for purple flowers and nothing from the white flower parent.

Answers

Answer:

A

Explanation:

The purple gene was dominant, so though the plants got "factors" from both parents, only the purple gene was expressed in their phenotype (purple petals).

A coal mine has been set up in a location. Thus far, it has benefited the people by increasing employment opportunities in the area. What is the most likely outcome the coal mine will have on the environment?

It will produce greenhouse gases, which pollute drinking water.
It will cause evaporation of clean water from rivers and streams.
It will contaminate groundwater and sources of drinking water.
It will destroy plants, which keep the groundwater clean.

Answers

Answer:

it will contaminate the water, choice C

Explanation:

i took the quiz

what is diffusion in biology​

Answers

Answer:

Answer is below:

Explanation:

"Diffusion is the movement of molecules from an area of high concentration of the molecules to an area with a lower concentration. The difference in the concentrations of the molecules in the two areas is called the concentration gradient."

Answer:

Diffusion is thw movement of a solution going from a higher concentration to a lower concentration that is driven by a gradient.

Explanation:

Hope it helps c:

The raw materials needed for photosynthesis are
A. Carbon dioxide and oxygen
B. Carbon dioxide and water
C. Chlorophyll and sunlight
D. Oxygen and glucose

Answers

Answer:

B. Carbon dioxide and water

Explanation:

please mark as brainliest

Answer:

I'd say C. Chlorophyll and sunlight.

Explanation:

DNA Base Pairing Worksheet
There are base pairing rules for writing complimentary DNA strands for a given strand.
A pairs with T
C pairs with G
In RNA, A pairs with U, instead of T.
Write the complimentary DNA strand for each given strand of DNA.
1. GGCATTCGCGATCATG
2. CGTTAGCATGCTTCAT
3. ACTAACGGTAGCTAGC

Answers

Answer: 1. CCGTAAGCGCTAGTAC

2.GCAATCGTACGAAGTA

3. TGATTGCCATCGATCG

Explanation: you just flip the letters with their corresponding ones

Analyze the document "King Andrew the First (c. 1833)” by explaining its "HIPP” (historical context, intended audience, author’s purpose, and author’s point of view). Refer to elements in the image to explain your response.

Answers

Answer: Andrew Jackson was a strong president. He used the office to forcefully pursue his agenda. This cartoon is quite famous, coming out around 1833, because of the 1833 removal order. In the cartoon, the president can be seen holding a veto in his hand, and standing on top of the Constitution. He is dressed up as a king, holding - perhaps - too much power. I believe that the intended audience was the people. The people saw him as a king, abusing his powers as a president. The author’s purpose was to show how people truly viewed him. The president’s order to remove federal deposits from the Bank of the United States led to an increase in state debt. The President was strongly criticized because he acted without congressional approval, as a king would.

Explanation: I don't recommend copying word per word, but hopefully this gives you a good start. Add anything you feel you need to, and good luck. You've got this. :3

The analysis of the document "King Andrew the First (c. 1833)” is as follows:

Historical context

It was created during the 1833 removal order

Intended audience

The American public

Author's purpose

To show that people truly believed in him

Author's point of view

First person

President Andrew Jackson was an enigmatic and strong personality during his tenure as President of the United States of America.

As a result of this, there was a cartoon which was created to help further his agenda. In it, he is depicted holding a veto power on top of the Constitution, while dressed in royal attire.

He wanted to show that he was a man of the people but it was viewed as a person who was wielding too much power than was suitable for a president as he occasionally acted without congressional approval.

Read more here:

https://brainly.com/question/23535665

A plant can have green (G) or yellow (g) leaves. it can also have a long (k) or short (k) stem. A scientist is preparing a Punnett square for a dihybrid cross of a plant with a genotype GGKk what possible gametes can the plant produce?

Answers

Answer:

gk, gK

Explanation:

GK, Gk, gk, gK are the possible gametes can the plant produce. So, the correct option is A.

What are Gametes?

Male and female germ cells are created in the anther and ovule of flowering plants, respectively. Pollen grains, which are discharged from the anthers at anthesis, contain male gametes.

The generative cell relocates through the pollen tube formed by the tube cell during pollen germination to reach the ovary's base where it will be fertilized. The generative cell splits into two male gametes as it moves through the pollen tube.

In the given example, the following gametes could be created while creating a Punnett square:

=> GK (Green and long) (Green and long)

=> Gk (Green and short) (Green and short)

=> gK (Yellow and long) (Yellow and long)

=> gk (Yellow and short) (Yellow and short)

Therefore, the correct option is A.

Learn more about Gametes, here:

https://brainly.com/question/29882202

#SPJ7

Your question is incomplete, most probably the complete question is :

A plant can have green (G) or yellow (g) leaves. It can also have a long (K) or short (k) stem. A scientist is preparing a Punnett square for a dihybrid cross of a plant with a genotype GGKk. What possible gametes can the plant produce?

A) GK, Gk, gk, gK

B) GG, Kk

C) GK, Gk

D) GK, gk

Can someone help me with this question please?

Answers

Answer:

B

Explanation:

They use echolocation (sound waves) because they cannot see the bottom of the ocean.

Good luck!

what is the organelles of tardigrade?

Answers

Answer:

The interpretation is characterized mostly in the explanatory section following the table, according to the particular circumstance.

Explanation:

Throughout the preservation race, the tardigrade, commonly abbreviated as either a water bear and sometimes moss piglet, seems to be the actual star. For something like a big proportion of today's present state, this eight-legged, ocean creature, which is comparable to nematodes than what they are to about their glance, the arthropods, and others have progressed unnoticed.

What's the connection between epigenome and nature vs nurture?

Answers

Answer:

The survival and proper functioning of an organism depends on a finely tuned interface between genome and environment, nature and nurture. The interface that regulates gene expression through environmental feedback is called the epigenome.

Explanation:

Alfred Wegener's theory about Earth's past included a supercontinent made up of all the continents put together.

What was the name of the supercontinent?


Pangaea


Americas


Gondwanaland


Laurasia

Answers

Answer:

I do K12 and got it right its A. Pangaea.

Hope it helped, 0Drink0Milk0

Answer: d. Pangaea

Explanation:

Other Questions
Which of these structures do plants and algae have in common? xylemphloemchloroplastsstems Select the correct answer. Which statement best supports the idea that water conservation is important for human societies? A. Once humans use water, it cannot be reused ever again. B. Only about 1% of the freshwater on Earth is easily accessible. C. Water is constantly being lost from the hydrosphere. D. Most land animals use salt water instead of freshwater. Y=??? Answer pls I will try to answer one of urs if u do During photosynthesis, plant cells use sunlight as an energy source. Animal cells do not use photosynthesis. What organelle in plant cells makes it possible for plants to carry out photosynthesis? HELP ASAPPPP!!!!! I1. Which sentence below from Passage 1 BEST supports the claim that "animal testing is the best way ofdeciding whether products are safe for humans?"A "Outlawing animal testing would result in humans dying in medical trials."B"Because animals lives are shorter, long-term side effects appear much sooner.""If we used humans for these, research could take more than 200 years, while with mice, itcan take less than 10 years."D"Alternative methods of testing are either unethical or give suspect results at best." how to cure depression An elevator is being pulled up from the ground floor to the third floor by a cable. The cable is exerting 4500 newtons of force on the elevator. According to Newton's law of action-reaction, what is the gravitational force on the elevator, in newtons, if the elevator is NOT accelerating? What is the Poynting vector S (x,t)S(x,t), that is, the power per unit area associated with the electromagnetic wave described in the problem introduction Plis answer me this question is do tomorrow What 2 ratio is equivalent to 4/14 HELPPPP ILL GIVE U 15 AND MARK BRAINLIST Based on the diagram, which statement explains how energy is conserved during this chemical reaction? (A) is also gained by the surroundings. B. The potential energy changes indicated by C and B involve energy lost by the surroundings. C. The potential energy lost by the reaction system (C) is also lost by the surroundings. D. The potential energy lost by the reaction system (B) is gained by the surroundinas she would probably be the member of ...does this sentence has a mistakeplz tell me Using a Table to Multiply Multivariable Polynomials What is the product of 6x y and 2x y + 2? 8x2 4xy + 12x + y2 2y 12x2 8xy + 12x + y2 2y 8x2 + 4xy + 4x + y2 2y 12x2 + 8xy + 4x + y2 + 2y What is the solution to the equation?(x - 2)^1/2 + 4 = xA. -3 and -6B. 3 and 6C. -3D. 6 Read the excerpt from Homecoming.At half-past eight, Dicey herded everybody back into the mall, to use the bathrooms they had found earlier. Later, Sammy and Maybeth fell asleep easily, curled up along the back seat. James moved up to the front with Dicey. Dicey couldn't see how they were both to sleep in the front seat, but she supposed they would manage it. James sat stiffly, gripping the wheel. James had a narrow head and sharp features, a nose that pointed out, pencil-thin eyebrows, a narrow chin. Dicey studied him in the darkening car. They were parked so far from the nearest lamppost that they were in deep shadows.The excerpt includes an example ofdialogue.dialogue tags.narration.stage directions. Daily demand for a product is 200 units. the production lead time is 2 days. a 1-day safety stokc is kept. how many kanban containers will be needed if one container holds 100 units? You wish to have $500 in a year. If you have a savings account that pays 6% simple interest, how much do you need to put into the account? Recruitment is an effort by an organization to keep employees and is the opposite of turnover. a. True b. False Help please tysvmmm !!!!!11 I NEED HELP ASAPRead the short passage about the life of Cesar Chavez.Cesar Chavez is best known for his use of nonviolent means to draw attention to the poor working conditions of farm workers in the United States. Chavez led marches, boycotts, and hunger strikes. It is even believed that these hunger strikes may have contributed to his death on April 23, 1993.Chavez dedicated his life to improving the lives of farm workers. He used nonviolent means to fight for the improved treatment, pay, and working conditions of farm workers. He was instrumental in organizing one such famous strike against the California grape growers in 1965, a battle that lasted for years. At one point, Chavez even called for a national boycott against the grape growers. His efforts over the years resulted in several victories for farm workers. After his death, Chavez was awarded the Presidential Medal of Freedom.Which picture would be best to use on a yearbook page to illustrate Cesar Chavezs contributions to society?a medala dollar billa grapea march