quick: having straight ears (e) is dominant over having
droopy ears (e). a parent with straight ears is crossed
with a parent with droopy ears. the punnett square
shows the possible genotypes of the offspring.
what is the probability that an offspring will have a
heterozygous genotype?
what is the probability that an offspring will have a
homozygous dominant genotype? %
what is the probability that an offspring will have a
homozygous recessive genotype? %

50%, 0%, 50%

Explanation:

From the Punnet square, there are 2 heterozygous genotypes out of 4 offspring, hence, the probability that an offspring will have a heterozygous genotype is 1/2 or 50%.

There are no homozygous dominant genotype among the genotype of the offspring as seen in the Punnet square. Hence, the probability of an offspring having a homozygous dominant genotype id 0%.

There are 2 homozygous recessive genotype out of 4 genotype of the offspring, hence, the probability of an offspring having a homozygous recessive genotype is 1/2 or 50%.

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