Question

5.) Suppose you mate two lab mice that each have the genotype Mm. What percent of the offspring will be expected to have homozygous GENOTYPES and what percent will exhibit recessive PHENOTYPES? a.) 100%: 0% b.) 50%: 50% c.) 50%: 25% d.) 25%: 75% e.) 75%: 25% 6.) A favourite genetics question on the MCAT: in families that consist of four children. what percent of them will have the gender birth order annear as male-female-male-female. (e.g. 1 child = male, 2nd child = female. 3rd child = male. 4th child = female)? a.) 50% b.) 32% c.) -3.13% d.) -6.25% c.) 0.5% 7.) For a fee of $20,000. you sequence Kim Kardashian's genome and tell her it is composed of 32% thymine. Based on this, what else would you feel confident to tell her? a.) Mrs. West, I am confident your genome is made up entirely of junk DNA. b.) Mrs. West, I am confident I make more money than you do. c.) Mrs. West. I am confident your genome is GC-rich. d.) Mrs. West, I am confident your genome contains 50% pyrimidines. e.) Mrs. West, I am confident your genome contains 32% guanine. 8.) What assumptions could be made if a cross returns a 7:6:2:1 ratio? a.) The cross is tracking two genes simultaneously. b.) Sturtevant and Morgan be like "Told ya!' c.) The ratio is the result of examining phenotypes. d.) The genes are located close to one another on the same chromosome. e.) All the answers are correct. 9.) In the cross: ZzBbttGgHHMmxx X ZZBBTTGGhhmmXx, what percent of genotypes would be zzBbTtGgHhMm Xx? a.) None! b.) 1% c.) 6.25% d.) 9.375% e.) 3.125%

please answer everything in photo

Answer 1

7. If thymine is 32% then adenine is also equal to 32% because T pairs with A making a total of 64%. So, remaining 36% is composed of G and C. So, G is 18% so is C.

Genome contains 50% pyrimidines, cytosine and thymine sums up to 50% ( 36+12).

So, the correct option is (d).