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Rainbow [258]
2 years ago
11

[52pts WILL MARK BRAINLIEST]

Biology
1 answer:
ch4aika [34]2 years ago
6 0

Answer:

Hello - this is Mrs. Gussman, your biology teacher.  I wrote this exam question.  Do not post test questions to the internet!  This is a violation of our school academic integrity policy.  You need to remove this post immediately.

Explanation:

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Which is controlled by a positive feedback loop: blood glucose levels after eating or estrogen levels in the days prior to ovula
Yanka [14]

Answer:

Estrogen levels days prior to ovulation

Explanation:

Estrogen is responsible for the reproductive system in women and high levels occur naturally during menstruation as compared to glucose levels in blood as the pancreas is constantly producing more insulin to lower the glucose in blood.

6 0
3 years ago
Tropical climates exist between which of the following latitudes?
irina [24]
Tropical climate is a region of the earth surrounding the equator.  When the earth is exposed to light from the sun it is right over the equator and up 23 degrees of latitude Tropic of Cancer in the northern hemisphere and Tropic of Capricorn in the southern hemisphere
3 0
2 years ago
Why is a 50 percent recovery of single-crossover products the upper limit, even when crossing over always occurs between two lin
34kurt

Answer:

Because of homologous recombination

Explanation:

  • When genes are establish on different DNAs or far apart on the same chromosome, they are classified self-sufficiently and are said to be unlinked.
  • When genes are very close together on the same chromosome, they are said to be linked. That means that alleles, or genetic versions, that are already together on a chromosome will be inherited as a unit more often than not.
  • We can see if two genes are linked, and how closely, by using data from genetic crosses to calculate the frequency of recombination.
  • Using the technique of discovery recombination happenings for numerous gene pairs, we can make link maps that show the order and relative distances of the genes on the chromosome.

  • When the genes are on the same chromosome but far apart, they are classified independently due to crossing (homologous recombination). This is a procedure that happens at the start of meiosis, in which homologous DNAs randomly exchange matching fragments. Crossing be able to connection new alleles in combination on the same chromosome, causing them to enter the same gamete. When the genes are far apart, the crossing occurs with sufficient frequency for all types of gametes to occur with 25% percentage frequency.
  • When the genes are very close together on the same chromosome, the crossing still occurs, but the result (in terms of the types of gametes produced) is different. Instead of being classified independently, genes tend to "stay together" during meiosis. That is, alleles of genes that are already together on a chromosome will tend to pass as a unit to gametes. In this case, the genes are linked

6 0
2 years ago
2. What do you call the shape of a DNA molecule?
Tju [1.3M]

Answer:

double helix

Explanation:

looked up on google lol

3 0
3 years ago
The colored chromosomes represent chromatids. There are two of each color because one is an exact duplicate of the other. How ma
OverLord2011 [107]

Answer:

92.

Explanation:

92 chromatids are visible for humans at prophase stage because the replication of 46 chromosomes occur. When the replication of chromosomes occur, each chromosome is converted into two chromatids so when 46 chromosomes replication occur then it changed into 92 chromatids. So we can say that there is 92 chromatids in humans in the prophase stage of mitosis.

8 0
3 years ago
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