The Diagram Below Shows a Simplified Version of the Biochemical

question 1

Multiple Choice

The diagram below shows a simplified version of the biochemical pathway responsible for fruit color in peppers.Assume that Enzyme 1 is encoded by gene A (a is a null allele) ,Enzyme 2 is encoded by gene B (b is a null allele) ,and Enzyme 3,which breaks down the chlorophyll present in the fruit,is encoded by gene C (c is a null allele) .In the absence of Enzyme 3,the fruit takes a brown color in the presence of red pigment,but it remains green in the absence of red pigment.


Absence of chlorophyll

a) Consider two genotypically different pure lines that make colorless peppers.If these two plants are crossed,what phenotypes should be observed in the F₁?

• A)colorless only
• B)colorless and yellow only
• C)red and yellow only
• D)red only
• E)yellow only

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Definitions:

Sympathetic Innervation

Part of the autonomic nervous system that generally stimulates the body's fight-or-flight response, increasing heart rate and blood flow, among other functions.

Adrenal Medulla

The inner part of the adrenal gland that secretes adrenaline and noradrenaline, involved in the body's response to stress.

Splanchnic

Pertaining to the viscera or internal organs, especially those of the abdominal cavity.

Autonomic Nervous System Function

Controls involuntary body functions, such as heartbeat, digestion, and breathing.