An individual whose genotype is homozygous for the dominant allele is which of the following

Biology

1 answer:

Lapatulllka [165]2 years ago

3 0

Answer:

examples include, "FF" or "DD", or just two uppercase letters.

Explanation:

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Two functions of an oesophagus in a ruminant animal

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As temperature increases the rate of enzyme activity increases until it reaches approximately 37 degrees Celsius. As temperature

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Answer: Option A

<u>Explanation:</u>

As temperature increases the rate of enzyme activity increases until it reaches approximately 37 degrees Celsius. As temperature increases beyond 37 degrees Celsius, the enzyme activity decreases. The activity decreases because the enzyme denatures.

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A Ligustrum plant cell is exposed to an aqueous solution having sodium and chloride concentrations higher than the sodium and ch

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3 years ago

Read 2 more answers

An inhibitory stimulus has occurred. B. Chemically gated potassium channels have opened. C. Excessive potassium has diffused out

andrezito [222]

Given question is incomplete. Complete question has been attached.

Answer:

C. Excessive potassium has diffused out causing hyperpolarization.

Explanation:

The nerve action potential can be divided into following stages:

Stimulus is detected by the cell in resting stage.
Sodium channels in the membrane open from where influx of sodium ions occur which is called depolarization
After a while, sodium channels close and potassium channels open from where efflux of potassium ions occur which is called repolarization.
The membrane potential further lowers due to continous efflux of potassium ions which is called hyperpolarization.
After a while potassium channels close and membrane returns to its resting stage.

In the given figure, stage 4 depicts hyperpolarization because the membrane potential has dropped to the lowest point below -70mV. Hence, option C is correct.

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