The movement of ions or molecules across a cell membrane from an area of lower concentration to

Which medication is used in mares to suppress estrus, for estrus synchronization, and to maintain pregnancy?

Anvisha [2.4K]

The administration of altrenogest.

8 0

3 years ago

9. how do sister chromatids compare to each other?

ikadub [295]

Answer:

The sister chromatids are identical to one another and are attached to each other by proteins called cohesins. They are formed.

Explanation:

3 0

2 years ago

3. In one population, 18 individuals have long hair and 182 individuals have short hair. It is known thatmating has been random

pishuonlain [190]

Answer: p (short hair) = 0.91 and q (long hair) = 0.09

Explanation: In the population, short hair is a feature of domnant allele, because there are more short haired individuals than with long hair. In genetics, p is the frequency for dominant allele and q is for recessive allele.

For this question, short hair is allele L and long hair is allele l

So, the frequency of short hair is p and of long hair is q.

To calculate the frequencies:

Frequency of allele L = (number of copies of allele L in population) / (total number of L/l gene copies in population)

p = 182/200 = 0.91

The same formula goes for the recessive allele, so:

q = 18/200 = 0.09

Thus, the frequencies of hair allele are 0.91 and 0.09 for short and long, respectively.

8 0

3 years ago

Based on the model presented, which of the following statements expresses the proper relationship between osmolarity, ADH releas

inn [45]

Question: Based on the model presented, which of the following statements expresses the proper relationship between osmolarity, ADH release, and urine production?

(A) As tissue osmolarity rises, more ADH is released, causing less water to be excreted as urine.

(B) As tissue osmolarity rises, less ADH is released, causing less water to be excreted as urine.

(C) As tissue osmolarity rises, more ADH is released, causing more water to be excreted as urine.

(D) As tissue osmolarity rises, less ADH is released, causing more water to be excreted as urine.

Answer:

As tissue osmolarity rises, more ADH is released, causing less water to be excreted as urine.

Explanation:

ADH is the hormone that triggers the formation of concentrated urine by stimulating the absorption of water from the filtrate in the kidneys. As the solute concentration (osmolarity) in the blood raises, the more of the ADH is released into the blood. ADH triggers reabsorption of water in collecting duct and distal tubules and thereby, reduces the water loss in urine. Increased reabsorption of water restores the osmolarity, blood volume, and blood pressure.

8 0

3 years ago

Sweat is the result of which life function?

telo118 [61]

<span>Human sweat is a result of our body getting over heated. We sweat through our pores so our temperatures don't go up and as a result we stay at a normal temperature. We may feel hot but that's because we are hot from the heat of something. If we didn't sweat then our temperature would become very high and we would die.</span>

6 0

3 years ago

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