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Nina [5.8K]
3 years ago
8

Question 4 (2 points) Question 4 Unsaved

Biology
1 answer:
Blababa [14]3 years ago
5 0
Replication is the process by which a cell duplicates the DNA.

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Which structure forms as DNA unwinds? A. a special marker B. a complementary base C. a replication bubble D. a double helix
kozerog [31]

A replication bubble forms as the DNA unwinds.

Option C  

<u>Explanation</u>:  

Replication bubble is the space where the strands of double helical DNA structure are separated with the help of DNA helicase. The strands of the double helical DNA are still in the helix form on the both end of the unwinded DNA stand which gives this region an appearance of a bubble.

DNA unwinding is the first step in replication or transcription of the DNA molecule. DNA helicase separates the two types of "DNA" that are connected by hydrogen bonds with the help of ATP hydrolysis.  

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3 years ago
Describe a way in which genetic engineering has helped criminal justice? I'm kinda confused by this. xD
Luden [163]
At a glance this one's confusing, I agree.
Genetic engineering has made it easier for forensic scientists to differentiate human DNA beyond simple blood sampling. This inevitable led to release of innocent accused prisoners.
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What happens to the thickness of the uterine lining when the level of progesterone reaches its highest levels?
lara [203]
The thickness of the uterine lining becomes very thick when the level of the hormone progesterone reaches its highest levels. this makes sense based on the function of progesterone, as it is necessary for the implantation of the zygote.
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Plants are extremely important to all life on earth. Name things that humans are responsible for that are endangering plants?
faust18 [17]
Pollution is the biggest impact as well as deforestation
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Typical household bleach has a pH of 13. What is the H3O+ concentration in household bleach?
Arlecino [84]

Answer:1.0, -13

Explanation:

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