The diploid number of chromosomes in guppies, Poecilia reticulate , is 46. Two g
ID: 56587 • Letter: T
Question
The diploid number of chromosomes in guppies, Poecilia reticulate, is 46. Two guppies that are heterozygous for genetic markers on every chromosome ( e.g. genotype Aa Bb Cc Dd…..Tt Uu Vv Ww, where all genes segregate independently) are crossed.
Part A
With respect to these markers, how many genetically distinct types of gametes are produced as a result of independent assortment during meiosis?
Enter your answer as a single integer with an exponent.
Part B
How many possible genotypes of offspring are produced by the cross described?
Enter your answer as a single integer with an exponent.
Explanation / Answer
Part A)
Genetically distinct types of gametes are produced as a result of independent assortment during meiosis would be 223 . Since each genotype contain 2 alleles during independent assortment these 46 alleles segregate as individual gametes.
Part B)
The possible genotypes of offspring are produced by the cross described = 246 . This is because, the diploid chromosome number is 46 with each gene carrying 2 alleles.