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sp2606 [1]
3 years ago
15

Two sister chromatids are joined at the centromere prior to meiosis. Which statement is correct? a. These chromatids make up a d

iploid chromosome. b. Barring mutation, the two sister chromatids must be identical. c. The cell that contains these sister chromatids must be haploid.
Biology
1 answer:
kirill115 [55]3 years ago
6 0

Answer:

b. Barring mutation, the two sister chromatids must be identical.

Explanation:

Prior to meiosis, the DNA is replicated so cells enter division with all its chromosomes having two sister chromatids united at the centromere.

DNA replication is semiconservative: the original DNA strands are separated and new strands are synthesized using the original ones as templates. As a result, each sister chromatid is made of one original DNA strand and a newly synthesized DNA strand, and both should be identical to each other.

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jonny [76]

The purpose of control group 2 is to determine if the new drug was a possible method for getting well, i.e., option B.

<h3>What is way of testing medicines?</h3>

In a laboratory, drugs are first subjected to non-human tests. These laboratory tests are performed to determine a level of safety.

The results of these tests are then submitted to the United States Food and Drug Administration (FDA), which determines whether the treatment is safe enough to be studied in human volunteers.

There are various phases involving discovery, clinical trial, review, and safety monitoring.

The purpose of control group 2 is to determine if the new drug was a possible method for getting well

Thus, the correct option is B.

For more details regarding drug testing, visit:

brainly.com/question/11332268

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5 0
2 years ago
Read 2 more answers
An interaction in which an animal feeds on plants is called
lozanna [386]
Its called a herbivore
7 0
3 years ago
Which of the above molecules would be least soluble in water?<br><br>(See attached image)​
weqwewe [10]

C

Explanation:

Molecule C would be least soluble in water because it is not a polar compound/molecule. It also lacks any unit that can combine with water to form a good hydrogen bond.

  • The general rule of solubility is that like dissolves likes.
  • Polar molecules will only dissolve in polar solvent.
  • Water is a polar solvent with hydrogen bonds in them.
  • Hydrocarbons typically have weak london dispersion forces between them and they are not polar.
  • Other compounds have functional groups that can form hydrogen bond with water.

learn more:

Hydrogen bonding brainly.com/question/10602513

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5 0
3 years ago
Care sunt toate diferentele dintre sistemul circular al unei reptile si al unui om
dusya [7]

Answer:

Human has 4 chambers, and most reptiles have 3 chambers in their heart

Explanation:

your question in Romanian translated roughly What is the difference between a human and reptile circulatory system?

5 0
3 years ago
What punctuation mark can be found in the body?
Licemer1 [7]
I think it's the the colon ??
7 0
3 years ago
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