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Q1) In humans, the ability to roll the tongue is dominant over the inability to do so.

if two heterozygous

tongue-rollers have children, what genotype and phenotype could their children have?

if a non-tongue-roller has children with a homozygouse tongue-roller, what would their children's genotypes and phenotypes be?


Q2)In an alien species, eye colors can be black, white, or gray. a white-eyed mother and a black-eyed father have all gray-eyed children.

what genetic pattern is most likely demonstrated here?

a gray-eyed couple has two babies: one white-eyed and one blacked-eyed. does this confirm or deny your answer to part A? if necessary, revise your hypothesis

a gray-eyed alien and her black-eyed husband want a white-eyed baby. is this possible?


Q)3 in a domestic cats, the gene for Tabby stripes (T) is dominant over the gene for no stripes (t).

If a breeder crossed a heterozygous Tabby cat with a strapless cat, what percent of F1 generation would have tabby stripes?

There is a recent demand in pet stores for Tabby cats. As a breeder, which two cats from the F1 generation above would you cross to produce the most Tabby kittens? why?

If you had Tabby cat and wanted to know if this cat was Homozygous or heterozygous, what type of cat could breed your Tabby with to prove its genotype? explain your answer.

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Let's name the alleles for tongue... View the full answer

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