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Alja [10]
3 years ago
8

Why is primase required for DNA replication?

Biology
1 answer:
slava [35]3 years ago
7 0

Answer:

Primase is a DNA dependent RNA polymerase. It adds RNA primer to the DNA strand and lay the foundation of DNA replication.

It is important because DNA polymerase can add nucleotides to the 3'- end of the strand.

Primase, in the form of RNA primers provide free 3'- end to the DNA polymerase and thus, help in initiating DNA replication.

At the end of replication RNA primers are removed by DNA polymerase I.

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\Archaea and bacteria * 3 points have mitochondria and chloroplasts have similar cell structures have similar genetics and bioch
Julli [10]

Answer:

have similar cell structures

Explanation:

Archaea and bacteria are single-cell organisms that are classified as prokaryotes. They both possess similar cell structures as they tend to both have the same shape and size when viewed with a microscope. They both do not have a nucleus or other membrane-bound organelles like mitochondria and chloroplasts. One of the structures they share in common is the thread-like structure called flagella, which they use as in navigation around their environment.

Irrespective of the fact that they have similar cell structure, advanced studies have shown that archaea and bacteria have different genetic coding made of different proteins. Both cells also differ in the composition of their cell walls.  

3 0
3 years ago
In any lysogenic infection, the viral DNA
Ganezh [65]

Answer:

In any lysogenic infection, the viral DNA

destroys the host DNA.

Explanation:

lysosome breaks down food material and destroy cell that dies

3 0
3 years ago
Drag the tiles to the correct boxes to complete the pairs.
meriva

Answer:

Water vascular system = Echinodermata

Tentacles with stinging cells= Cnidaria

Molting for growth= Arthropoda

Presence of mantle= Molluska

Explanation:

7 0
3 years ago
Atp serves as a common energy source for organisms because
Talja [164]

Answer:

The reasons why Adenosine Triphosphate is a common energy source for all organisms is that: 1. It is a high-energy molecule  2. ATP has an unstable structure compared to other high-energy molecules. 3. ATP has  higher potential to transfer phosphate group.

Explanation:

The transfer of phosphate group from high energy molecule like the adenosine triphosphate (ATP) usually release energy that is required by most of cellular activities, thus this dephosphorylation process is an exergonic reaction. While other molecules like the GTP can give energy, these molecules are more stable structurally and breaking them down will not by energetically wise, thus there is need to use a less stable high energy molecules like the ATP which have the potential of releasing their phosphate radical more easily. This is the reason why all organisms make use of the ATP molecule as the only energy source.

5 0
3 years ago
What compound is found at the reaction center of a photosystem?
Nadusha1986 [10]
D. Chlorophyll a

Hope this helped
6 0
4 years ago
Read 2 more answers
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