Albinism Allele Copies in Human Cell Division: Meiosis Explanation

  • Thread starter Thread starter nicholaschean
  • Start date Start date
  • Tags Tags
    Cell Division
Click For Summary

Discussion Overview

The discussion revolves around a homework question regarding the number of copies of the recessive allele for albinism found at one of the poles of a cell during telophase I of meiosis in an albino person. The focus is on understanding the genetic implications of allele segregation during meiosis.

Discussion Character

  • Homework-related

Main Points Raised

  • One participant states that since an albino person has the genotype rr, there will be 2 copies of the recessive allele due to duplication during interphase, leading to 1 copy at each pole during telophase I, concluding that the answer is D (1 copy).
  • Another participant proposes a different interpretation, suggesting that each pole will have 2 copies of the recessive allele (2(r)), thus concluding that the answer is C (2 copies).
  • There is a request for clarification on what the original question is, indicating some confusion about the discussion context.

Areas of Agreement / Disagreement

Participants present competing interpretations regarding the number of allele copies at the poles, with no consensus reached on the correct answer.

Contextual Notes

There are unresolved assumptions regarding the interpretation of allele segregation during meiosis, and the discussion does not clarify the definitions or implications of the terms used.

nicholaschean
Messages
19
Reaction score
0

Homework Statement



Albinism in humans is controlled by a recessive allele. How many copies of this allele will be found at one of the poles of a cell at telophase I of meiosis in an albino person.
A.23
B.4
C.2
D.1

Homework Equations


The Attempt at a Solution


Let rr be the recessive allele for Albinism. During interphase, there will be 2 of rr due to duplication. Therefore, when they are sperated by the pole.
there would be 1 rr on the left and 1 rr on the right. Therefore telophase 1, will contain one rr in one nucleus and one rr in the other.

So my ans is D
 
Physics news on Phys.org
Hmm i have a 2nd attempt though and i think it shld be correct:
Let r be a recessive allele. A person with albino will be rr. Therefore, this wil duplicate during interphase resulting in 2(rr). Therefore, each pole will have 2(r). Therefore ans is C.
 
So, what's your question? ;-)
 
The question is on top liao. As for the attempt, it is the 2nd post
 
nicholaschean said:
The question is on top liao. As for the attempt, it is the 2nd post
No, I understand what question you were asked. I see that you've answered it. Now, what is your question?
 

Similar threads

Biology Genetics Problem -- six independently assorting genes in a plant
  • · Replies 6 ·
Replies
6
Views
5K
Medical How does chromosome number get halved in meiosis I?
  • · Replies 1 ·
Replies
1
Views
3K
Some cell biology questions (cancer & lactose intolerance)
  • · Replies 6 ·
Replies
6
Views
14K
What colors and attributes could alien flora & fauna have?
  • · Replies 15 ·
Replies
15
Views
6K