Knock out the false allele claims

Exercise and reference answers

Questions

1. Question

   Three of these statements about dominant and recessive alleles are false.

   Choices

   1. Item

      A recessive allele shows only if doubled

      Correct

      Yes

   2. Explanation

      It is carried on unchanged and can reappear in later offspring.

      Item

      A recessive allele is lost in a hybrid

   3. Explanation

      In a dominant pattern only the dominant allele is expressed.

      Item

      A heterozygote blends the two traits

   4. Explanation

      A homozygous dominant and a heterozygote look identical.

      Item

      A hybrid never looks like a homozygote

Instructions

Tap the three false statements about dominant and recessive alleles to clear them away.

Explanation