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natima [27]
3 years ago
14

Complete the following sentence. Clarice is a dairy cow that is milked irregularly. Stress may cause her to release a hormone th

at decreases milk and lowers her immunity.
Biology
1 answer:
emmainna [20.7K]3 years ago
6 0

Answer:

The correct answer is - production.

Explanation:

If a cow does not milk on schedule it creates stress conditions and leads to several physiological changes which lead to the release of a hormone. This hormone result in lower milk production also affects negatively on her immunity.

The stress cause release of estrogen, and prolactin hormones with other corticosterioids that result in decreases in the number of cytokines and decrease innate immunity of the cow.

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Hemophilia B, a blood clotting disorder, is an X-linked recessive trait. What is the expected percentage of offspring with hemop
Lemur [1.5K]

Answer:

The correct answer is 25%.

Explanation:

Considering that Hemophilia B is an X-linked recessive disease, than for it to be observed in female offspring, the mother must be homozygous recessive because females have XX chromosomes and if the father transfers only the dominant gene then the female offspring will always be heterozygous dominant.

In the case of a father who carries the dominant gene on his X choromosome and a mother who is heterozygous for the disease meaning she has both the dominant and the recessive gene, if we calculate the percentages for this situation, we see that for the first generation, one female offspring is heterozygous dominant, one female offspring if homozygous, one male offspring carries the dominant gene on his X chromosome and the other male offspring carries the recessive gene on his X choromosome which is the one that carries the disease.

I hope this answer helps.

6 0
3 years ago
Which cell organelle is responsible for regulating biochemical activies
Yuri [45]

Answer:

B. The cytoplasm

Explanation:

One of the main responsibilities of the cytoplasm is to control all metabolic activity that takes place within the cell.

3 0
2 years ago
Which of the following does not apply to an enzyme:
Valentin [98]
B. specific to a substrate
7 0
3 years ago
All of the following are transmembrane pumps that facilitate active transport except?
BigorU [14]

Answer:

b) Channel pumps

Explanation:

The channels are the transmembrane proteins that serve in the passive transport of substances down the concentration gradient. The channels can be gated or non-gated. The gated channels are opened and closed in response to certain stimuli such as electrical change.

For example, aquaporins are the gated water channels that transport the water across the plasma membrane. The process is driven by the osmotic gradient and does not use the energy of ATP.  

3 0
3 years ago
In order to perform a successful transformation, for which of the following would you most likely have to use electroporation or
tatiyna

Answer:

Answer is B. Escherichia Coli.

Explanation:

Transformation involves the introduction of foreign DNA into competent organism, I.e E.coli.

This effect can be done through the application of electric current across the cell. This process is known as electroporation.

6 0
3 years ago
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