1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
vodka [1.7K]
3 years ago
11

Fruit color in a particular plant is controlled by a set of three quantitative trait loci (i.e., QTLs or polygenes), that work i

n an equal and additive manner. Each QTL has two alleles (i.e., A and a); each allele represented by a capital letter produces one dose of yellow pigment, while alleles represented with lower case letters do not produce any pigment at all. A trihybrid plant (A/a; B/b; C/c) is selfed. Assuming no effects of the environment, what proportion of the offspring will have the same fruit color phenotype as the trihybrid parent?
Biology
1 answer:
tankabanditka [31]3 years ago
4 0

Answer:

1/8

Explanation:

Given that the trihybrid parents have AaBbCc genotype for fruit color. The trait is a quantitative trait i.e. each dominant allele will have an additive effect on it. In this case, AaBbCc and AABBCC will not produce same fruit color because AaBbCc has only three loci contributing to the color while in AABBCC all the six loci are contributing to the color. For an offspring to be exactly similar to the AaBbCc parents it should have the same genotype of AaBbCc.

The probability of Aa to come from a cross between Aa and Aa is 2/4 or 1/2

The probability of Bb to come from a cross between Bb and Bb is 2/4 or 1/2

The probability of Cc to come from a cross between Cc and Cc is 2/4 or 1/2

So the collective probability of AaBbCc offspring from a cross between AaBbCc and AaBbCc parents would be=

1/2 * 1/2 * 1/2 = 1/8

Hence, assuming no effects of the environment, 1/8 of the offspring will have the same fruit color phenotype as the trihybrid parent.

You might be interested in
What is Sagittarius plane
Nikitich [7]

Answer:

Sagittal plane, imaginary plane dividing the human body into left and right halves. Sagittaria, a genus of about 20 species of aquatic plants. Sagittarians (disambiguation) Sagittarius Aiolos, a character in Saint Seiya.

Explanation:

8 0
3 years ago
What happens to your breathing when you’re working hard (exercising)?
Art [367]

.....................

3 0
3 years ago
Read 2 more answers
Which of the following processes is least likely to introduce variations into the genetic make-up of a population?
ale4655 [162]
What are my options I only see the question?
7 0
3 years ago
Chemical mechanisms that can turn off or reduce an enzyme are _____.
jok3333 [9.3K]
The answer should be competitive inhibitors
8 0
3 years ago
Read 2 more answers
Multiple Choice Question Which of the following is NOT true of the cytoplasm? A. It is found in every part of the cell, from the
pashok25 [27]

Answer:

B

Explanation:

it is fluid lieu substence

6 0
3 years ago
Read 2 more answers
Other questions:
  • water at about 4°C is more dense than water at 0°C why was it the living organisms in the Lokai if the water at the freezing poi
    10·1 answer
  • ________is a method in which a bloodborne pathogen may be transmitted
    11·1 answer
  • In which digestive system organ will you find the enzymes responsible for breaking down disaccharides into monosaccharides and d
    13·1 answer
  • Complete the analogy below. Rainfall is to precipitation as groundwater is to _____.
    6·2 answers
  • What is life and does it sucks?
    13·2 answers
  • How does the muscular system work with the respiratory system?
    9·1 answer
  • List and describe the 5 characteristics found in all living things; be able to identify various structures or processes as repre
    13·1 answer
  • Why does mutation happen regularly? *
    6·1 answer
  • What is the dependent variable for the following hypothesis: If plants receive
    10·1 answer
  • The flowers of an adult plant develop<br> OA) embryos<br> OB) plants<br> C new seeds
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!