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vladimir1956 [14]
3 years ago
15

Which feature is found most often in prokaryotic cells?

Biology
1 answer:
Misha Larkins [42]3 years ago
4 0
The answer is plasmid
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In which of the following ways are bacteria similar to birds
pentagon [3]

Answer:

They both use DNA as their genetic material.

Explanation:

Bacteria are simple prokaryotic organisms which lack membrane bound organelles. On the other hand, birds like higher organisms are eukarotyotic organisms with proper membrane bound organelles. Other than this that both bacteria and birds are living organisms,  one way in which bacteria and birds are similar is that they both have DNA as genetic material which they pass to their offspring. Although in the case of bacteria there is no variation is offspring however in case of birds there can be because genetic shuffling takes place and offspring is not an exact replica of parents while in case of bacteria they are.

Hope it helps!

3 0
2 years ago
Oxidative damage to DNA can often result in the alteration of a single nucleotide.
Harman [31]

Answer:

Repair mechanism for base cleavage (BER)

Explanation:

Repair by base cleavage (BER)

The altered bases are specifically recognized by glycosylases and removed, generating an AP site. The hole is filled by a DNA polymerase that takes the healthy strand as a template. This system arises not only by exposure to external agents, but also by the cell's own activity.

In case of damage in more than one nucleotide, repair by nucleotide excision (NER) is performed.

Nucleotide excision repair (NER)

The damaged area is recognized by UvrA and B, then A and B separate and UvrC enters which forms a complex with endonuclease activity with B. This enzyme cuts the T-dimer and the gap is filled by a DNA polymerase. There is also the TC-NER system (transcription-coupled nucleotide repair system). The alteration of these mechanisms gives rise to diseases such as: Xeroderma pigmentosum, Trichotiodystrophy or Cockayne Syndrome

5 0
3 years ago
Read 2 more answers
What does erosion do?
Nady [450]

the answer to this problem is c

5 0
2 years ago
Read 2 more answers
In females, the urinary bladder lies anterior to the vagina and uterus. in females, the urinary bladder lies anterior to the vag
rosijanka [135]
The answer is true I think
4 0
3 years ago
A DNA mutation changes the shape of the extracellular domain of transmembrane receptor protein A produced by the cell. Which of
Tatiana [17]
<h2>a) is the correct option </h2>

Explanation:

The extracellular domain of the transmembrane receptor protein acts as binding site for primary messenger molecule whereas the transmembrane domain holds the receptor within membrane and the cytosolic domain has intrinsic tyrosine kinase activity, all these helps in proper cell signaling

If because of any mutation there is change in shape of the extracellular domain then that molecule that normally binds to the receptor protein will no longer attach hence cellular response will be deactivated

8 0
2 years ago
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