Question

What will be the genotype of the offspring resulting from a genetic cross between two individuals one of which is homozygous dominant (TT) and the other heterozygous?
1 point
a. All Tt
b. 50% TT, 50% tt
c. 50% TT, 50% Tt
d. 25% TT, 50% Tt, 25% tt​

Answer 1

Answer:

A human population containing 200 individuals has two alleles at the 'T' locus, named T & t. T, which produces tall individuals, is dominant over t, which produces short individuals. If the population has 90 TT, 40 Tt, and 40 tt genotypes, what will be the frequencies of these two alleles in this population?

Answer 2

The genotype of the offspring resulting from a genetic cross between homozygous dominant (TT) and the heterozygous (Tt) is- c. 50% TT, 50% Tt.

• The offspring having homozygous dominant trait will produce a similar type of gametes with genotype T while offspring having heterozygous traits will produce two types of gametes, one having genotype T and the other having t.
• Hence, a cross between homozygous dominant and heterozygous will produce progeny in which half of them will have genotype TT and another half will have Tt.