Exam 3 review (SI)

Stuff on the exam: Feb 25- March 11

Complete the table

Question: YY mice die at the embryonic stage. Considering ‘being

dead’ considered a phenotype, is the allele Y recessive or dominant

for ‘being dead’?

Crossing two yellow mice results in a progeny with 2/3rd

yellow mice and 1/3rd white mice. What is the mode of

inheritance?

Question: How is the ‘h’ gene involved in blood type determination?

Is it epistatic? If yes, then dominant or recessive epistatic?

Question: What if, long fingers was determined by an autosomal

dominant allele with 80% penetrance. What would be the probability

of the first child having long fingers when two heterozygous parents

mate?

Question: Can a mother with ‘diseased’ mitochondria pass the trait to

the child? Can a father with ‘diseased’ mitochondria pass the trait to

the child?