In the Testcross Aa Bb × Aa Bb, What Proportion

question 30

Multiple Choice

In the testcross Aa Bb × aa bb, what proportion of individuals are expected to be homozygous for both genes in the F₁ generation?

• A)1/4
• B)1/2
• C)3/4
• D)All are homozygotes.
• E)None are homozygotes.

---

Definitions:

Eyewitness

A person who directly observes an event and can provide a first-hand account or testimony of what happened, often used in the context of legal evidence.

Lineup

A process in criminal identification in which suspects are presented sequentially or simultaneously to a witness for the purpose of identity recognition.

Crime

An action or omission that constitutes an offense and is punishable by law.

Free Recall

A memory task where participants are asked to remember information in any order without cues.