Question

Q1) Which of the following best describes a haplotype?

a variant form of a particular gene

a combination of two alleles present at a single locus for a diploid individual

A combination of alleles at multiple loci on the same chromosome or chromosome region

a chromosomal region that experiences high recombination Q2) Two alleles in an individual are identical-by-descent (IBD) if they're homozygous, irrespective of their ancestry their phenotypic effects are the same as was experienced in the ancestor they're homozygous or heterozygous, but inherited from the same grandparent both are derived from a single ancestral copy that existed in an individual in a previous generation Q3) In a given population of 1500 individuals, 720 individuals are genotype AA and 420 individuals are genotype Aa. What is the genotype frequency of aa individuals? 0.28 0.48 0.76 0.24 Q4) Which of the following statements about rare, deleterious alleles is correct? Inbreeding decreases the likelihood that they will be found in homozygous condition The majority of copies occur in heterozygotes if mating is random They can be targets of selective sweeps Their ultimate fate is determined by genetic drift

Answer 1

OA combination of alleles at multiple low on the same chromosome or chromosome region 0 both are derived from single ancestral copy that exited in an in a previous generator I_BD the parental 'a' b to both off 0.24 explanation Rightarrow frequency of AA = 750/1500 = 0.48 Frequency of heterogeneous = 420/1500 = 0.28 Now, According to Hardy - Weinberg equation p^2 + 2 pq + q^2 = 1 0.48 + 0.28 + aa = 1 0.76 + aa = 1 aa = 1 - 0.76 = 0.24 \r\n Q4 The majorly of copes in heterogeneous if in random