Genetics problems

3. The urine of some people has a distinctive odor after eating asparagus. This appears to be a recessive trait. If a person with aromatic urine marries a person heterozygous for this trait, what phenotypic and genotypic ratios will their children theoretically exhibit?

4. Cat's tail has 42 chromosomes in each somatic cell.
A. How many tetrads will be present at metaphase I of meiosis?

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