Refer to This Text to Answer the Following Questions

question 36

Multiple Choice

Refer to this text to answer the following questions.
To map genes of a bacterial strain,conjugation must be interrupted at given times.Suppose you have Hfr cells of genotype a⁺ᵇ⁺ᶜ⁺ᵈ⁺ᵉ⁺ˢᵗʳᴿ and F⁼ cells of genotype a⁻ᵇ⁻ᶜ⁻ᵈ⁻ᵉ⁻ˢᵗʳˢ and you combine these two cultures in liquid medium in four blenders at time 0.After intervals of 3,6,9,and 12 minutes,you turn on successive blenders.
-The resulting cultures were then plated on medium containing streptomycin.Why?

• A)to eliminate non-conjugating Hfr cells
• B)to eliminate all non-conjugated cells
• C)to eliminate non-conjugated F⁻ cells
• D)to selectively eliminate cells that have taken in F⁺ genes

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Definitions:

Explicit Memories

Memories of specific information or events that can be consciously recalled.

Hippocampus

A critical part of the brain located in the medial temporal lobe, important for learning and memory.

Semantic Processing

Semantic processing is the cognitive process involved in the understanding and interpretation of language, including words, sentences, and meaning.

Echoic Memory

A component of sensory memory that retains auditory information for a short period, typically up to a few seconds after the original sound has ended.