Use the Graphs to Answer the Following Question

question 17

Multiple Choice

Use the graphs to answer the following question.
Mutant fruit flies that make only one antimicrobial peptide were tested for survival after infection with Neurospora crassa fungi or with Micrococcus luteus bacteria.


The results shown in the graphs support the hypothesis that ________.

• A) adding the defensin gene to such mutants protects them from death by bacterial infection
• B) adding the drosomycin gene to such mutants protects them from death by bacterial infection
• C) wild-type flies with the full set of genes for antimicrobial peptides are highly susceptible to both fungal and bacterial pathogens
• D) the presence of any single antimicrobial peptide protects against both fungal and bacterial pathogens

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Definitions:

Anterograde Amnesia

A condition characterized by the inability to form new memories following the onset of amnesia, whilst memories from before the event remain intact.

Nonsense Syllables

Sequences of letters that do not follow grammatical rules or produce meaningful words, often used in memory and learning experiments.

Hermann Ebbinghaus

A German psychologist famous for his pioneering work on memory, including the discovery of the forgetting curve and the spacing effect.

Memory

The capability of the mind to retain and recall information.