1. Three pairs of genes with two alleles each (A1 and A2, B1 and B2, and...

90.2K

Verified Solution

Question

Biology

1. Three pairs of genes with two alleles each (A1 and A2, B1 andB2, and C1 and C2) influence lifespan in a human population. Thealleles of these genes have an additive relationship and add thenumber of years indicated to the lifespan of the individual.
allele years
A1 15
A2 4
B1 16
B2 8
C1 13
C2 9
a. If lifespan were entirely genetically determined, what is theminimum possible lifespan and the associated genotype?
b. If lifespan were entirely genetically determined, what is themaximum possible lifespan and the associated genotype.
c. The following is a range of ages from individuals in thispopulation. If the genetic variance is 25.7, measure thebroad-sense heritability of lifespan
lifespan
65
77
89
76
99
97
87
81
78
91
d. Explain what this heritability means, and why the measure maybe so low.

Answer & Explanation Solved by verified expert

4.4 Ratings (735 Votes)

A As it is given in the question that the lifespan is additive and we know that a gene consists of 2 alleles which means that alleles lifespan would add The lowest lifespan of an individual allele given is 4 ie of A2 allele This means that the lifespan of an individual with homozygous A2 See Answer

Get Answers to Unlimited Questions

Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!

Membership Benefits:

Unlimited Question Access with detailed Answers
Zin AI - 3 Million Words
10 Dall-E 3 Images
20 Plot Generations
Conversation with Dialogue Memory
No Ads, Ever!
Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!

Become a Member