In the Meselson-Stahl DNA replication experiment, if the cells were first grown for many generations in 15N containing media, and then switched to 14N containing media, what percent of the DNA had 1 light strand and 1 heavy strand after 2 generations of growth in 15N growth media?

#Question id: 3216

#Unit 9. Evolution & Diversity of Life Forms

The frequency of galactosemia is approximately 1 in 40,000 live births. The frequency of the carrier state can be calculated as

#Question id: 3250

#Unit 9. Evolution & Diversity of Life Forms

Consider a diploid population at Hardy-Weinberg equilibrium. For a locus with two alleles, the frequency of the A1A1, A1A2 and A2A2 genotype is 0.01, 0.18 and 0.81) Which of the following statement is correct?

#Question id: 3251

#Unit 9. Evolution & Diversity of Life Forms

Looking at 3 allele per locus and following Hardy Weinberg equilibrium what will be the expected heterozygosity if q1=0.5, q2=0.3, q3=0.2

#Question id: 3252

#Unit 9. Evolution & Diversity of Life Forms

 The unaffected brother of a cystic fibrosis affected girl is referred for genetic counseling. Assume that the population is in Hardy-Weinberg equilibrium. Which of the following is correct?  (Cystic fibrosis is an autosomes recessive inheritance with an incidence of 1 in 2500).

#Question id: 3253

#Unit 9. Evolution & Diversity of Life Forms

In a population 64% individuals of 1000 population are affected with autosomes dominant diseased. How many individuals are expected carry at least one dominant allele?

#Question id: 3254

#Unit 9. Evolution & Diversity of Life Forms

Consider a single locus with 2 alleles which are at Hardy-Weinberg equilibrium. If the frequency of the heterozygous genotypes is 0.42, what is the frequency of one homozygote in the population?