In humans, two abnormal conditions, cataracts in the eyes and excessive fragility in the bones, seem to depend on separate dominant genes located on different chromosomes. A man with cataracts and normal bones, whose father had normal eyes, married a woman free from cataracts but with fragile bones. Her father had normal bones. What s the probability that their first child will a) be free from both abnormalities b) have cataracts but no fragile bones c) have fragile bones but not cataracts; d) have both cataracts and fragile bones
Answers
Answer:
a) 1/4 or 25%
b) 1/4 or 25%
c) 1/4 or 25%
d) 1/4 or 25%
Explanation:
Both cataracts and bone fragility are dominant conditions and are independently inherited. Let cataracts allele be represented by C and fragile bone by B.
A man with cataracts (CC or Cc) and normal bones (bb), whose father had normal eyes would have the genotype Ccbb. The cataract would be heterozygous because he had a normal eyes father. The affected allele must have been inherited from his mother.
A woman free from cataracts (cc) but with fragile bones (BB or Bb) whose father had normal bone would have the genotype ccBb. The fragile bone would be in heterozygous condition because she had a normal bone father. The affected allele must have been from the mother.
Ccbb x ccBb
Offspring
4 CcBb - cataract eyes, fragile bone
4 ccBb - normal eyes, fragile bone
4 Ccbb - cataract eyes, normal bone
4 ccbb - normal eyes, normal bone
a) Probability that their first child would be from both abnormalities = 4/16 or 1/4 or 25%
b) Probability that their first child would have cataracts but no fragile bones = 4/16 or 1/4 or 25%
c) Probability that their first child would have fragile bones but no cataracts = 4/16 or 1/4 or 25%
d) Probability that their first child would have both cataracts and fragile bones = 4/16 or 1/4 or 25%
Related Questions
Help me please thanks the first one
Answers
Answer:
7683.2 Joules
Explanation:
We can calculate potential energy using the equation that is used to calculate the work done by a conservative force, in this case, gravity.
U(x)gravity = mgy
U represents potential energy, m is mass, g is gravity, and y is the height.
U(x) = (80 kg)(9.8 m/s^2)(9.8m)
Potential Energy = 7683.2 Joules
Please Help i will give brainliest
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Answer:
1. it establishes the foundation for food webs and food chains.
2. preservation of biodiversity prevents the extinction of species
Explanation:
Biodiversity gives a role to every species, whether or not it may seem important. By establishing a food chain, the roles of each organism is fulfilled as an ongoing cycle. If we didn't have this, there could end up being too many animals.
Which of the following is an incorrect match? a. endocytosis – substances taken into the cell b. exocytosis – substances secreted from the cell c. pinocytosis – liquids secreted from the cell d. phagocytosis – large particles taken into the cell
Answers
Answer:
The correct answer is c.pinocytosis – liquids secreted from the cell
Explanation:
Pinocytosis is a type of endocytosis in which substances are internalized into the cell from the celullar exterior. The components are not secreted from the cell but are uptaken into the cell. This internalization process is characterized by the formation of an invagination of the cell membrane where then is formed a vesicle surrounding the component to be uptaken.
what does the phrase "science is not done" mean?
Answers
Answer:
yrfquwrfbliueiurviurnfr
Explanation:
that means i do not know what that means
how does asexual reproduction limit variation in species?
Answers
Answer:
less of a chance for mutations
Explanation:
Answer:
Asexual reproduction is a cheap and fast method for producing large numbers of propagules having little diversity. The method of cell division is mitosis, which produces identical daughter cells. This is largely advantageous when survival of offspring is dependent, more upon explosive population growth, than on the diversity of each individual. Plankton species are such an example, where to survive they mostly just need to out produce predation.
Most organisms engage in sexual reproduction at some point in their life cycle to introduce diversity when survival is dependent on susceptibility to parasites. Host — parasite coevolution is an arms race accelerated by diversity.
In sexual reproduction, the method of cell division is meiosis, where diversity is introduced through crossing over, independent assortment, and also, random fertilization.
Explanation:
ALOT OF POINTS PLEASE HELP :)
How did humankind discover the presence of DNA?
Answers
Answer:
The real breakthrough in understanding DNA, however, came with the discovery of its structure in 1953. The discovery of the structure of DNA is often credited to James Watson and Francis Crick.
Explanation:
does anyone know this pls help
Answers
Answer:
A person standing on the ground is barely affected by surface gravity
Can DNA leave the nucleus ?
Yes
Or
No
Answers
No it never leaves the nucleus, that's wear it is located
I need someone to do a very big task for me in biology..I will give brainlist. The teask i need is the first one in my profile. Thankyou
Answers
Answer:
Explanation:
i'll try
If two hybrid tall pea plants are crossed what is the probability that the offspring will have the tall phenotype?
Answers
Answer:
There is a high probability that the Pea plant will have a High phenotype!
Explanation:
Because both "parent plants" are tall, this will cause the offspring to also be tall, this will be because it in it's genes or in other words DNA too be strong.
Because _________
is not a reason to reject frozen food.
A. ice crystals appear on the product or package
B. fluids or frozen liquids appear in case bottoms
C. there are water stains on the package
D. a similar or identical product is available in freeze-dried form
Answers
Answer:
D a similar or identical product is available in freeze-dried form
Answer:
D just took the test
Explanation:
what do microbiologist do? why are their contributions imported to science? pls help!
Answers
Which statement is best represented by the diagram?
All carbon is in the form of carbon dioxide,
Carbon can exist in many forms, but the total amount of carbon stays the same.
The amount of carbon in the cycle can increase or decrease based on the number of factories present.
Only living things release carbon dioxide into the atmosphere.
Answers
Answer:
All carbon is in the form of carbon dioxide
What can you infer about the Maastrichtian Age from its name?
Question 7 options:
A)
That is was an extremely long, complicated age.
B)
Rocks from that era were first studied near the city of Maastricht, Netherlands
C)
That is was the most strict geologic age in history.
D)
Nothing - the names of geologic ages are arbitrary.
Answers
Answer:
The B) is answer
my answer have to be atleast 20 characters long oof
Using the data in Figure 13.2, translate the following DNA segment into an amino acid sequence: -TTTAGCGAGTCTCGA-
Answers
T (thymine) should be translated into U (uracil)
If this is right, can you mark me brainliest? :)
Which of the following accurately describes where glyphosate can be used and why
Answers
Glyphosate is an herbicide. It is applied to the leaves of plants to kill both broadleaf plants and grasses. The sodium salt form of glyphosate is used to regulate plant growth and ripen specific crops.
During the cell cycle, (1)_______ is the stage when the cell is performing
its functions and/or resting, whereas _(2)______ is the stage when the
cell is actively dividing.
Answers
Answer:
A is correct happy new year
In which stage do vertebrate embryos or offspring show the most similarities?
Answers
Answer: Middle stages
Explanation:
Answer:
Earliest stages
Expation:
plzzzzzzzzzzz help lol
Answers
Answer:
litter
Explanation:
Help with all please 10 points and try and leave a small explanation, sorry for the quality lol.
Answers
Answer for question 3- A (Direct energy from the Sun)
(i’m not entirely sure what the answer is to question 2 and i do apologies if any of this incorrect)
in guinea pigs short hair is dominant over long hair. a female guinea pig with short hair but whose father had long hair is mated with a male whose parents were both short haired, but who has long hair. using a punnett square, predict the genotypic and phenotypic ratios of their offspring?
Answers
The genotypic ratio is 2:2 (Ss 50% and ss 50%)
The phenotypic ratio is 2:2 (short hair 50% and long hair 50%)
Enzymes lower the activation energy for a chemical reaction to proceed.
Answers
Answer:
The statement is true since one of the main functions of the enzyme is to lower the activation energy so that a chemical reaction to proceed.
Explanation:
Enzymes are specialized protein molecules that contribute to faster chemical reactions. One of the functional characteristics of an enzyme is that it reduces the activation energy for a reaction to occur.
Activation energy is the amount of net energy required for a reaction to occur. By lowering the activation energy, a reaction occurs faster, which is achieved with a biocatalyst such as enzyme.
Prokaryotes are structurally simple creatures that have existed for over a billion years. Which of the following are prokaryotes?
A Protists
B Bacteria
C Fungi
D Plants
Answers
Answer:
B. Bacteria
Explanation:
Trust me It's correct
The image illustrates a sustainable method of providing transportation for
people in a society. How does this method compare with having many
gasoline-powered vehicles, each with only one occupant?
A. It conserves more fossil fuels.
B. It uses the same amount of fuel per person.
C. It uses more expensive fuel per person.
D. It uses more fossil fuels per person
Answers
Answer: A. It conserves more fossil fuels
Explanation:
This approach saves more fossil fuels than using lots of gasoline-powered cars, each with just one occupant. So, the correct option is A.
What are Fossil fuels?A fossil fuel is a hydrocarbon-containing substance that is recovered and used as fuel that naturally forms in the Earth's crust from the remains of dead organisms and plants. Fossil fuels include coal, oil, and natural gas. Fossil fuels can be burned to produce energy, drive engines, or provide heat for immediate use.
A general name encompassing non-renewable energy sources such crude oil, petroleum products, natural gas, derived gas, coal, coal products, and non-renewable wastes is "fossil fuel." These fuels are made from ancient geologically-dated plants and animals (for example, millions of years ago). Compared to using many single-occupant gasoline-powered cars, the method conserves more fossil fuels.
Therefore, the correct option is A.
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The parietal pleura lines the
Answers
Answer:
Uh im confused so here is the defination The parietal pleura is the outer membrane that attaches to and lines the inner surface of the thoracic cavity, covers the upper surface of the diaphragm and is reflected over structures within the middle of the thorax. It separates the pleural cavity from the mediastinum.
Explanation:
Which molecule is split apart during the light reactions in photosynthesis?
A. Water
O B. Carbon dioxide
ООО
C. Glucose
D. ATP
Answers
If a strand of
DNA reads ATC
C, what would
the other side
read?
Answers
Answer:
TAGG
Explanation:
Adenine always pairs with thymine and cytosine always pairs with guanine
What limits the growth of phytoplankton?
Answers
Answer:
phosphorus has been considered to be the primary nutrient limiting phytoplankton growth in freshwater ecosystems
Explanation:
how did advancements in technology help scientists better understand process of cell division?
Answers
Answer:
As is true for many fields of research, cell biology has always been ... Thanks to these advances we now have access to microscopes and ... You might then also realize that the new method, at least on paper, may have additional applications. ... which makes the technology attractive to yet more scientists.
Explanation:
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With the creation of the microscope, humans were able to observe plant and animal cells, and as technology advanced, scientists were able to learn more about these various types of cells.
What is a microscope?A microscope is a device that can be used to examine small objects, including cells. The image of an object is magnified in the microscope by at least one lens.
In most cases, the light is focused on the sample by passing it through a condenser.
After passing through the sample, the light passes through the objective lens, which magnifies the image of the sample, and then to the oculars, where the enlarged image is viewed.
The discovery of the green fluorescent protein (GFP), the development of increasingly sophisticated microscopes, and the development of in vitro assays that faithfully reproduce cellular functions are just a few examples of technological advances that have fueled many areas of cell biology.
Thus, it can be concluded that the advancements in technology help scientists better understand process of cell division.
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What are the three blood types? Explain how there could be an AB blood type.
Answers
Answer:
AB
O
A
B
the AB blood type is created (mostly) by someone with A blood type making a baby with someone with B blood.
Explanation:
The human blood group is classified into four major classes which are A, B, AB, and O. This is possible due to multiple allelism and codominance which are found in the alleles A and B.
What is blood typing?A blood type is the classification of blood into different groups, based on the presence or absence of antibodies and inherited antigenic substances on the surface of the red blood cells which are present in the blood. These antigens may be proteins, carbohydrates, glycoproteins, or the glycolipids, depending up on the blood group system.
In humans, the blood typing is of four types that is A, B, AB, and O. This is because, the blood typing is an example of multiple allelism and codominance. A and B alleles are codominant and O is recessive.
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