In the cross AaBb x AaBb, what are the genotypes that are homozygous for both traits, and in what proportion will they occur?

Answers

Answer 1

Answer:

Answer:

In this cross aabb is the only genotype that is homozygous for both traits among 16 offspring's produced during the AaBb × AaBb cross.

Proportion is: 16 : 1 i.e out of 16 only one is homozygous for both traits.

Explanation:

Taking an example of pea plant.

In this question each organism has hetero-zygous alleles i.e Aa of single character gene with having both dominant and recessive traits.

Say for example in this case capital "A" represents Tall dominant character and small "a" represents dwarf recessive character. Similarly Capital "B" for example represents round dominant pea seeds and small "b" represents wrinkled recessive pea seeds.

In this question organism with having hetero-zygous characters (i.e having both dominant and recessive traits) are crossed. Underlined represents male part while non-underlined represents Female part of plant

AaBb × AaBb-----------(1)

Four different types of gametes are produced from each organism due to meiosis in which chromosomes become half and alleles become separated.

i.e AB, Ab, aB and ab× AB, Ab, aB and ab--------------(2)

Mating of these alleles are represented below in the form of checker board.

AB Ab aB ab

AB AABB AABb AaBB AaBb

Ab AABb AAbb AaBb Aabb

aB AaBB AaBb aaBB aaBb

ab AaBb Aabb aaBb aabb

In this cross aabb is the only genotype that is homozygous for both traits among 16 offspring's produced during the AaBb × AaBb cross.

Proportion is: 16 : 1

Related Questions

Proteins are composed of chains of _____________ which are joined together with peptide bonds.A) fatty acids EliminateB) amino acids C) nucleic acids D) monosaccharides Biology
According to the theory of isostasy, which statement must be true?A. The asthenosphere has the same density as the lithosphere.B. The lithosphere is denser than the asthenosphere.C. The asthenosphere is denser than the lithosphere.D. The lithosphere has the same density as the core.
How do plants obtain carbon atoms? A.from carbon in the soilB.from microorganisms that live in soilC.from carbon dioxide in the atmosphereD.from animals that feed on the plants
___________succession occurs in areas where there is already soil, but the plantsand animal life there has been wiped out.A)SecondaryB)PrimaryC)AnnualD)All of these
What’s the difference between cell cycle and mitosis

What is the difference between pluripotent cells and totipotent cells?

Answers

The difference between the two cells is that the totipotent cells, as opposed to ghe pluritotent cells, can give the rise to both the placenta and embryo.

Both pluripotent and totipotent cells are part of the stem cells. The stem cells have an ability to transform themselves into many type of cells that makes up the body.

During the mitosis of the zygote, 2 identical cells are formed. Those cells will form other cells and finally develop an organism. Those are the totipotent cells. Now to become a foetus, the baby undergoes a stage in which he's called an embryo and other cells develop: the pluripotent cells, which are able to become any cell that forms the body and help the embryo become a foetus.

So the difference between totipotent and pluripotent cells is that totipotent cells can only develop the organism, forming the embryo and the protective placenta, while the pluripotent cells can become any cell present in the body and help the embryo to become a foetus.

Hope this helps! :)

Please answer this question!!!

Answers

A genus and species hehe

the answer your looking for :

A. genus and species

hope this helps!!

PLZ HELP!Which organ is being described in this statement?
If this organ malfunctions, all other body systems will be starved of oxygen.

A. heart
B. kidneys
C. skin
D. small intestine

Answers

YOUR ANSWER IS : A THE HEART

HOPE THIS HELPED AND IF YOU CAN PUT ME AS BRAINLIEST ANSWER
PLEASE?

a. Heart!!
~hope I helped

I NEED HELP RIGHT NOW!!!!!!!!!!!!!!!
How does mass conservation apply to the rock cycle?

Answers

Answer: All of the rock in the Earth is recycled and accounted for during the rock cycle. This principle applies to other areas of science as well and is known as conservation of mass, which says that mass cannot be created or destroyed but is cycled between different forms.

Explanation:

How do hox genes primarily function in multicellular organisms

Answers

The general principles of Hox gene function and logic elucidated in flies will apply to all bilaterian organisms, including humans. Drosophila, like all insects, has eight Hox genes. These are clustered into two complexes, both of which are located on chromosome

According to the diagram, how does cellular respiration aid the process of photosynthesis?

Answers

Plants need carbon-dioxide and water and both of those are released into the air by respiration and during respiration, the plants need oxygen and glucose, which are produced by photosynthesis. hope that gave a clue...

Other Questions

Please help!!1There is a singer everyone has heard,Loud, a mid-summer and a mid-wood bird,Who makes the solid tree trunks sound again.He says that leaves are old and that for flowers5Mid-summer is to spring as one to ten.He says the early petal-fall is pastWhen pear and cherry bloom went down in showersOn sunny days a moment overcast;And comes that other fall we name the fall.10He says the highway dust is over all.The bird would cease and be as other birdsBut that he knows in singing not to sing.The question that he frames in all but wordsIs what to make of a diminished thing.Which term describes lines 11-12?A)Rhyme B)ParadoxC)HyperboleD)Onomatopoeia

A scientist observing a group of spider monkeys noticed that the adult females often spend time picking leaves off of tree branches. The scientist hypothesizes that this behavior is caused by boredom. Is the scientist’s hypothesis valid?No, humans are the only organisms that experience boredom.Yes, boredom is a likely explanation for the spider monkeys’ behavior.No, emotions of non-human organisms cannot be tested.Yes, the hypothesis could be tested through a controlled experiment.

Some plastics are made from corn. These plastics are biodegradable. This means that plastics made from corn will _______________________ than regular plastic

Which of the following processes takes place during prophase?A. Mitotic spindles form.B. Nuclear membranes form around two sets of chromosomes.c. Chromosomes are copiedD. Spindle fibers pull the sister chromatids apart