In sexual reproduction, will an offspring show a recessive trait if just one of its parents has recessive alleles for that trait? Explain your answer.

Answers

Answer 1

Answer:

No, they will not

Explanation:

In this question, we assume that the parents have genotypes of rr and RR (I use "r" out of convenience). If we cross both of these parents, it is impossible for any of the offspring to be rr like the one parent. They would all be heterozygous. If the other parent had a single recessive allele, then it would be possible.  

Hope this helps!


Related Questions

what would be the independent, dependent, and control variable to how coral dies? (100 points)

Answers

Answer:

in the explanation

Explanation:

The independent variable would be us humans polutling the ocean with oil and other plastics destroying the coral reefs. The dependant variable is an abbrasive species of fish becoming overpopulated and killing all the fish that help the coral grow causing the coral to die. (independant variable basically means humans tampering with it causing the problem. dependent is naturally occuring humans cant control whether a fish overpopluates or not thats natural)

PLZ HELP! why it is important to base scientific theories and models on empirical evidence as opposed to other ways of knowing such as religion​?​

Answers

Answer:

A theory not only explains known facts; it also allows scientists to make predictions of what they should observe if a theory is true. Scientific theories are testable. New evidence should be compatible with a theory.

Explanation:

A psychologist working from the biological perspective would study all of the following to see how they affect behavior and cognitive processes except __________. A. Attention B. Brain cells C. Genes D. The nervous system Please select the best answer from the choices provided A B C D.

Answers

Answer:

Attention

Explanation:

Just took the test

A psychologist working from the biological perspective would study all of the following to see how they affect behavior and cognitive processes except Attention. The correct option is A.

Thus, When a psychologist approaches his or her job from a biological standpoint, he or she should not take into account attention as a factor because it is a psychological factor rather than a biological one.

Brain cells, genes, and the nervous system can all be thought of as biological elements.

It can be utilized to analyze how the brain, genes, and nervous system affect cognition and behaviour.

Thus, A psychologist working from the biological perspective would study all of the following to see how they affect behavior and cognitive processes except Attention. The correct option is A.

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which of these neurotransmitters does not bind to a plasma membrane receptor?

Answers

When neurotransmitter molecules bind to receptors in the plasma membrane of the receiving neurona. ion channels in the plasma membrane of the sending neuron open. b. ion channels in the plasma membrane of the receiving neuron open. c. the receiving neuron becomes more negative inside. d. the receiving neuron becomes more positive inside. e. vesicles in the synaptic terminal fuse to the plasma membrane of the sending neuron.

Use examples to explain how the geosphere interacts with two other of Earth's spheres. Explain the interaction for each using complete sentences. HELPPPP

Answers

Answer:The interaction between Geosphere, atmosphere and hydrosphere: Geosphere interact with various spheres of earth and help in various cycles of element and performing different processes. One of the examples of such interaction is the geosphere interacts with the atmosphere and hydrosphere when a volcano erupts.

A volcano is a structure or the part of the geosphere which releases lava and particulate matter into the atmosphere where it plays a role as a center particle or nuclei for the water droplets which is come down into river and land in the form of rainfall which is a part of the hydrosphe

pls give me a branlest

Darwin's opinion that living forms must be descended from extinct forms was most closely related to his consideration of ___.

Answers

Darwin's opinion that living forms must be descended from extinct forms was most closely related to his consideration of the fossil record.

how is the malphigan body adapted for it's function

Answers

it adapted because in order to be able to run in the human body the heart has to be able to operate

Could you please help me on this I could use some correct assistance! Your help would be great ❣️I believe you just have to put yes or no.

Answers

Page 1 - Answers

1a. Prokaryotic cells doesn't have a nucleus.

1b. Eukaryotic cells have a nucleus.

Page 2 - Answers

2a. Prokaryotic cells doesn't have any membrane-bound organelles since they're single cells.

2b. Eurkaryotic cells have a membrane-bound organelles. If they didn't why would they have a nucleus?

3a. Prokaryotic cells have a plasma membrane.

3b. Eukaryotic cells have a plasma membrane too.

4a. Prokaryotic have circular DNA.

4b. Eukaryotic cells also have DNA.

5a. Prokaryotic cells have cytoplasma.

5b. Eukaryotic cells also have cytoplasma.

6a. Prokaryotic cells have ribosomes.

6b. Eukaryotic cells also have ribosomes.

7a. Most prokaryotic cells have a cell wall. Mostly plant cells have cell walls.

7b. Eukaryotic cells don't have a cell wall. Like I said, plant cells have cell walls.

8a. Prokaryotic are simple cells, since they don't have lots of organelles.

8b. On the other hand, prokaryotic cells are more complex since they have lots of organelles.

9a. Prokaryotic cells are smaller than Eukaryotic cells. They measure in 0.1 to 5.0 micrometers.

9b. Eukaryotic cells are much bigger, measuring in 10-100 micrometers.

10a. Prokaryotic cells are unicellular.

10b. Eukaryotic cells are multicellular.

11a. Prokaryotic cells are in the Monera Kingdom, which consists of bacteria.

11b. Eukaryotic cells are in the animalia, plantae, fungi, and protista kingdom.

Hope this helps! Good luck :D

What method is used in this experiment to make the plasma membrane of E. coli more fluid and easier for the foreign DNA to enter

Answers

Answer:b

Explanation:

Oxygen sag curves can occur in streams when ____. Group of answer choices bacteria break down biodegradable wastes salt and fresh water mix water flows quickly water levels are high water is cool or cold

Answers

Oxygen sag curves can occur in streams when bacteria break down biodegradable wastes salt and fresh water mix water flows quickly water levels are high water is cool .

What is biodegradable waste?

The waste which has been recycled and converted into nutrients for plants as well as crops and for other use are known as biodegradable waste. It has been also known as any organic matter in waste which can be broken down into carbon dioxide, water, methane or simple organic molecules by micro-organisms and other living things.

Composting has been possible with the wastes which can decay by itself, like fruit and vegetable peels, leaves, flowers etc. Non biodegradable wastes will not decay by itself.

Therefore, Oxygen sag curves can occur in streams when bacteria break down biodegradable wastes salt and fresh water mix water flows quickly water levels are high water is cool.

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identify the location of reduction in an electrochemical cell.

Answers

Answer:

cathode electrodes.

Explanation:

Electrochemical cells have two conductive electrodes, called the anode and the cathode. The anode is defined as the electrode where oxidation occurs. The cathode is the electrode where reduction takes place.

What is the main purpose for plants to conduct photosynthesis?

Answers

Plants are autotrophs, which means they produce their own food. They use the process of photosynthesis to transform water, sunlight, and carbon dioxide into oxygen, and simple sugars that the plant uses as fuel. These primary producers form the base of an ecosystem and fuel the next trophic levels.

What are the primary elements of the nervous system responsible for analyzing and transmitting information

Answers

Answer:

Neurons

Explanation:

Neurons are the fundamental units of the brain and nervous system, the cells responsible for receiving sensory input from the external world, for sending motor commands to our muscles, and for transforming and relaying the electrical signals at every step in between. Hope this helps :)

2. Why are unicellular organisms considered organisms? Exp

Answers

Answer:

Unicellular organisms are made up of only one cell that carries out all of the functions needed by the organism, while multicellular organisms use many different cells to function. Unicellular organisms include bacteria, protists, and yeast

what type of carbohydrate is created by photosynthesis?

Answers

Answer:

glucose

Photosynthesis requires sunlight, carbon dioxide, and water as starting reactants (Figure 5.5). After the process is complete, photosynthesis releases oxygen and produces carbohydrate molecules, most commonly glucose.

What is the relationship between the light-dependent and light-independent reactions of photosynthesis

Answers

Answer:

In the light-dependent reactions, energy from sunlight is absorbed by chlorophyll and that energy is converted into stored chemical energy. In the light-independent reactions, the chemical energy harvested during the light-dependent reactions drives the assembly of sugar molecules from carbon dioxide.

Explanation:

hope it's help♡

When does osteogenesis begin?

*When a fetus is 13-15 weeks old
When a baby is born
When a fetus is 32 weeks old
When a child is 2 years old

Answers

Answer:

A. When a fetus is 13-15 weeks old

Explanation: is correct. post protected

New genetic combinations are a result of
a. Nondisjunction
b. Crossing over
c. accidents
d. all of the above

Answers

Answer:

Explanation: D

Edexcel GCSE combined science biology paper 2 2020
If you know any questions please tell me just one will do TOT

Answers

Just look up the mark scheme online

a red onion cell has undergone a change, as represented in the diagram below. This change is most likely due to the cell being placed in...

Answers

Salt water.
We can see that the cell is shrivelled meaning osmosis has taken place. So it must be salt water

A red onion cell placed in a saline solution will lose water when water moves from the cell to the surrounding hypertonic medium via osmosis, causing the cell to shrivel up.

What is osmosis?

The passage of solvent molecules from a lower concentration solution to a higher concentration solution across a semipermeable membrane. It is a passive process that occurs without the use of any energy.

Solvent molecule transfer proceeds from low to high concentration regions until the concentrations on both sides of the membrane are equal.

What are the types of osmosis?An isotonic solution contains the same solute concentration both within and outside the cell.

A hypertonic solution has a larger solute concentration outside than inside the cell.

A hypotonic solution contains a larger concentration of solutes inside the cell than outside.

Thus, we can conclude that when a red onion cell is placed in salt water.

As we can see in the diagram the onion cell shrink which means it is placed in salt water which is a hypertonic solution.

So, option (3) salt water is correct.

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What observations did charles darwin make about finches in the galápagos islands?

Answers

Answer:

He noticed that each finch species had a different type of beak, depending on the food available on its island. The finches that ate large nuts had strong beaks for breaking the nuts open.

someone help me asap

Answers

Answer:

its c

Explanation:

because it has a definition on it

What is released by fat cells to signal that the body has had enough to eat, and also influences BMR

Answers

I believe it is leptin.

What process allows the cell to remain efficient

Answers

Answer:

cell growth control

Explanation:

could you give me brainliest?

__________ are intestinal parasites that can live up to 20 years and grow up to 50 feet in length. A. Toxoplasmosis B. Amoebae C. Malaria D. Tape worms Please select the best answer from the choices provided. A B C D.

Answers

Answer:

D. Tapeworms

Explanation:

I took test EDG2022

Which scientist was the first to use the term cell to describe what he saw under the microscope?

Answers

Answer:

Scientist Robert Hooke

which pathways compose the autonomic nervous system

Answers

Answer:

sympathetic division and the parasympathetic division.

Explanation:

The two divisions of the autonomic nervous system are the sympathetic division and the parasympathetic division.

List reasons you would or would not be concerned about eating genetically modified food

Answers

Answer:

Reasons I would be concerned about eating GMO foods:

Explanation:

The FDA declaring them to be "substantially equivalent" to non-GMO foods amid controversy that adequate scientific testing had not been done.

Michael Taylor being in the FDA when "substantial equivalence" was declared. Michael Taylor was a Monsanto employee before taking the position at the FDA.

The technology itself of taking a gene from one species and inserting it into another species (horizontal breeding). While that may be perfectly harmless it is new technology that many believe has not been proven to be safe.

Greater amounts of pesticides being used on GMO crops, which means more pesticides may be getting in our foods.

Crops that are engineered to produce an insecticide in the plant itself possibly having harmful health effects on us. There is some evidence that this may be happening.

What are the two things that the mitochondria need to take in for Cellular Respiration to occur?

A. Sugar (glucose) & Oxygen
B. Carbon dioxide, Water, & Energy
C. Neither of these is true

Answers

Answer:

Oxygen and glucose are both reactants in the process of cellular respiration (option A)

Explanation:

Oxygen is needed to help in the process of transforming glucose into ATP.

PLS HELP ASAP ILL GIVE BRAINLKEST I GIVE 10 POINTS ITS NOT BB AND Bb

Answers

It’s the third one
BB, Bb, and bb
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