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professor190 [17]
3 years ago
7

What happens during prophase?

Biology
2 answers:
Leya [2.2K]3 years ago
7 0

answer:

During prophase, the complex of DNA and proteins contained in the nucleus, known as chromatin, condenses. The chromatin coils and becomes increasingly compact, resulting in the formation of visible chromosomes. ... The replicated chromosomes have an X shape and are called sister chromatids

Explanation:

nataly862011 [7]3 years ago
7 0

Answer:

Which statement best describes how Poe creates mood in the excerpt?

Poe uses rhyme to create an optimistic mood.

Poe uses rhyme to create a nostalgic mood.

Poe uses rhyme and onomatopoeia to create a rowdy mood.

Poe uses rhyme and onomatopoeia to create a boastful mood.Explanation:

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PolarNik [594]

So option B (hybrids have lower fitness than either parent population) is the correct answer.

What is Reinforcement?

Reinforcement is a consequence used in behavioral psychology to strengthen an organism's future behavior when that activity is preceded by a specific antecedent stimulus. This strengthening impact can be quantified as a higher frequency of behavior, a longer duration of behavior, a greater volume of behavior, or a shorter latency.

To learn more about Reinforcement

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2 years ago
Why is it important to eat enough protein?
sveticcg [70]

Answer:

I'm pretty sure it B, hope I helped

7 0
3 years ago
Which of the following is involved in transcription?
Ivahew [28]

Explanation:

both A and B

..........D

5 0
3 years ago
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You add the following components (in the correct volumes and concentrations) to a tube to perform a PCR reaction Buffer Magnesiu
uranmaximum [27]

Answer:

b. False

Explanation:

These components are not sufficient to successfully perform a PCR reaction. Deoxynucleoside triphosphates (dATP, dGTP, dCTP, dTTP) are missing so that the PCR reaction can occur perfectly.

The PCR technique allows a specific fragment of the DNA molecule to be amplified thousands of times in just a few hours. This technique revolutionized research in molecular biology because it had taken a long time for DNA amplification. From PCR it is possible to obtain enough copies of a part of DNA to detect and analyze the sequence that is the target of the study.

For a PCR reaction to be performed a solution with some components must be prepared. These components are:

  • Magnesium chloride buffer (to optimize reaction and act as a cofactor for polymerase)
  • Forward and reverse primers (to customize the start of the enzyme reaction)
  • DNA polymerase (Enzyme required for replication of desired DNA region.)
  • DNA Template (the DNA to be copied)
  • PCR-grade water
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3 0
3 years ago
During which process is oxygen gas released into the atmosphere?
qaws [65]

Answer:

photolysis

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it happens when the uv radiaiton of sunlight breaks apart the oxygen containg molecules.

4 0
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