Question In humans, the allele for having five fingers is recessive to the allele for having 6 (really). How many fingers does someone who is heterozygous for this trait have? Answer = 6 Question If two heterozygotes have a child, what is the probability that he is also heterozygous? Answer= 50% Question If a lab mouse shows a dominant phenotype, and you want to know whether it is homozygous or heterozygous for that trait, how would you find out. Answer= by breeding with a homozygous recessive Question In humans, the allele for brown eyes is dominant over the allele for blue. If a heterozygote has a child with someone with blue eyes, what is the probability their child will have blue eyes? Answer 50 Question You need two copies of a recessive allele to show a recessive trait. Answer = True Question In cattle, red fur is codominant to white fur. What color is an individual who is heterozygous for this trait? Answer =
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This note was uploaded on 04/17/2008 for the course BIOLOGY 101 taught by Professor Henderson during the Spring '08 term at CSU Fullerton.