The Bicoid Mutation (Bcd^-) in Fruit Flies Is Inherited as a Maternal

question 30

Multiple Choice

The bicoid mutation (bcd^-) in fruit flies is inherited as a maternal effect recessive allele. What is the expected ratio of phenotypes in the offspring of a cross between a bcd⁺/bcd^- female and a bcd⁺/bcd^- male?

• A) 1 normal : 1 mutant
• B) 3 normal : 1 mutant
• C) 3 mutant : 1 normal
• D) all normal
• E) all mutant

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Definitions:

Nonsense Syllables

Sequences of letters without meaning, used in memory and learning experiments to study the mental processes involved in remembering.

Ebbinghaus

Hermann Ebbinghaus, a psychologist known for his pioneering studies on memory and the forgetting curve, illustrating how memory retention diminishes over time.

Cued Recall Task

A memory task where a participant is given prompts or cues to aid the retrieval of a specific piece of information from memory.

Free Recall Task

A test of memory where an individual is asked to recall information in any order without specific cues or prompts.