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Masja [62]
2 years ago
5

An enzyme that breaks DNA, dispels the tension, and reseals the strand ahead of a DNA replication growing fork is called a(n):

Biology
1 answer:
qaws [65]2 years ago
4 0

Answer:

Topoisomerase

Explanation:

Topoisomerases are enzymes that produce changes in the topology of the DNA during replication, transcription, traduction, or reparation processes. They can cut one or both strands and in order to relieve torsional stresses in the supercoiled structure of DNA. With this, they help to maintain the chromosome's integrity. There are two types of topoisomerases: topoisomerase I (it cuts only one strand of DNA) and topoisomerase II (it is able to cut both strands of DNA).

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HELP ASAP I WILL GIVE BRAINLIST
adelina 88 [10]

Answer:

1) CO₂

2) 0.2551 g

Explanation:

The balanced reactions are:

CaCO₃ + 2HCl → CaCl₂ + H₂O + CO₂

MgCO₃ + 2HCl → MgCl₂ + H₂O + CO₂

1) The gas produced is CO₂.

2) Calculate mass of CaCO₃:

(0.5236 g) (0.4230) = 0.2215 g CaCO₃

Convert to moles:

(0.2215 g CaCO₃) (1 mol / 100.1 g) = 0.002213 mol CaCO₃

Find moles of CaCO₃:

(0.002213 mol CaCO₃) (1 mol CO₂ / mol CaCO₃) = 0.002213 mol CO₂

Convert to mass:

(0.002213 mol CO₂) (44.01 g / mol) = 0.09738 g CO₂

Calculate mass of MgCO₃:

(0.5236 g) (0.5770) = 0.3021 g MgCO₃

Convert to moles:

(0.3021 g MgCO₃) (1 mol / 84.31 g) = 0.003583 mol MgCO₃

Find moles of MgCO₃:

(0.003583 mol MgCO₃) (1 mol CO₂ / mol MgCO₃) = 0.003583 mol CO₂

Convert to mass:

(0.003583 mol CO₂) (44.01 g / mol) = 0.1577 g CO₂

Total mass of CO₂:

0.09738 g CO₂ + 0.1577 g CO₂ = 0.2551 g CO₂

8 0
3 years ago
Some traits are determined by more than two alleles. Human skin color is determined by three different genes, resulting in sixty
Nutka1998 [239]
The answer would be b.)AaBbCc<span>They because will receive one recessive </span>allele<span> from their father and one </span>dominant<span> allele from their mother at each </span>gene<span> locus.</span>
5 0
3 years ago
Read 2 more answers
A Conversation between characters in a story
barxatty [35]

It's "Dialogue"

have a good day!

4 0
2 years ago
Many different insects will be present on dead bodies. Which one do entomologists usually use?
Murrr4er [49]
D. Flesh flies i think
7 0
2 years ago
12.
kolezko [41]

Answer:Its B

Explanation:All vegation decay releases CO2 , Increasing Greenhouse gasses! , Hope that helped :)!

3 0
2 years ago
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