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Scorpion4ik [409]
2 years ago
5

Which enzyme functions to prevent supercoiling of the DNA molecule during replication?

Biology
2 answers:
Eddi Din [679]2 years ago
6 0

Answer:

B

Explanation:

attashe74 [19]2 years ago
4 0

Answer:

Option B is the correct answer.

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A chemist has two compounds that do not chemically react. He thinks that by finding the right catalyst, he can get them to react
KIM [24]
He is incorrect because a catalyst is a substance that speeds up a chemical reaction so if there is no reaction to begin with a catalyst will not due anything.
5 0
3 years ago
Plz help! I'll give brainliest, follow, and points!!
Leni [432]

Answer:

There are many reasons why manned space probes to Saturn are simply  unachievable. Getting to space is incredibly hard. The force of gravity is very hard to escape. If you wanted to, you would have to invest trillions upon trillions of dollars to create a space shuttle that may or may not explode. Second, we simply don’t have the technology to make it that far with a manned probe. Saturn is more than a billion miles away. It would take more than several years to go that far. To keep astronauts alive, entertained, and sustained is also a big challenge. In conclusion these are some reasons why a manned space probe to Saturn is unachieveable.

Explanation:

U’d better give me that brainly.

6 0
2 years ago
A new kind of tulip is produced that develops only purple or pink flowers. Assume that flower color is controlled by a single-ge
Sophie [7]

Answer:

a. purple allele (C) = 0.609, pink allele (c) = 0.391

b. purple homozygotes = 371, pink homozygotes = 153, heterozygotes = 476

Explanation:

Given -

Purple flowers - 847

Pink flowers - 153

The frequency of recessive genotype i.e

q^ 2 = \frac{153}{1000} \\q^ 2 = 0.153\\

Frequency of recessive allele i.e q is equal to

q = \sqrt{0.153} \\q = 0.391

As per hardy Weinberg's first equilibrium equation -

p + q = 1\\p = 1-q\\p = 1-0.391\\p = 0.609

Frequency of purple homozygous species

= p^2\\= 0.609^2\\= 0.371

Number of purple homozygous species = 0.371 * 1000= 371

Number of pink homozygous species = 0.153 * 1000= 153

Heterozygous species is equal to

(1-0.371-0.153)* 1000\\= 0.476 * 1000\\= 476

5 0
2 years ago
Read 2 more answers
Scientists and doctors are working hard to find a way to cure cancer. Which cellular process are they studying to try and cure t
Natasha_Volkova [10]

Answer:

<em>The correct option is B) regulation of mitosis</em>

Explanation:

Cancer can be described as a group of diseases which result from uncontrolled, abnormal cell division. The cell division by which the cells divide (except sex cells) is termed as mitosis. Hence, scientists will be studying the regulation of mitosis if they are to find a cure for cancer.

Other options like option A are not correct because only sex cells divide by meiosis. Hence, regulation of meiosis will not cure cancer.

5 0
3 years ago
What is the sugar found in DNA that makes up the sugar-phosphate backbone of the double helix?
Georgia [21]

Answer:

deoxyribose

Explanation:

A phosphate backbone is the portion of the DNA double helix that provides structural support to the molecule. DNA consists of two strands that wind around each other like a twisted ladder. Each strand has a backbone made of alternating sugar (deoxyribose) and phosphate groups.

I hope that this helped you ;)

8 0
3 years ago
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