A Testcross Includes

question 55

Multiple Choice

A testcross includes:

• A) one parent who is homozygous recessive for one gene pair and a second parent who is homozygous recessive for a second gene pair.
• B) one parent who is homozygous dominant for one or more genes and a second parent who is homozygous recessive for these same genes.
• C) two parents who are both heterozygous for two or more genes.
• D) one parent who shows the dominant phenotype for one or more genes and a second parent who is homozygous recessive for these genes.
• E) one parent who shows the recessive phenotype for one or more genes and a second parent who is homozygous dominant for these genes.

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