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rjkz [21]
3 years ago
10

What are restriction enzymes? A. Carriers of foreign DNA into a cell that "restrict" the type of DNA introduced into the cell in

the recombinant DNA technique. B. Protective enzymes found in some bacteria that "restrict" the type of DNA allowed in the bacterial cell by catalyzing the cleaving of other types of DNA. C. DNA of an organism that contains genetic material that comes from another organism and "restricts" the enzymatic activity of the host. D. Circular, double-stranded DNA found in the cytoplasm of bacterial cells that "restrict" the amount of DNA in the bacteria.
Biology
1 answer:
viva [34]3 years ago
7 0

Answer:

B; Protective enzymes found in some bacteria that "restrict" the type of DNA allowed in the bacterial cell by catalyzing the cleaving of other types of DNA.

Explanation:

A restriction enzyme is a protein that recognizes a specific, short nucleotide sequence and cuts the DNA only at that specific site, which is known as restriction site or target sequence.

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Wittaler [7]
The correct answer is D: stable and not growing or shrinking. I hope this helped:)
3 0
2 years ago
Mutation is a random and non-adaptive process. This was first proven by:
s2008m [1.1K]

Answer:

Option (d).

Explanation:

Mutation may be defined as the sudden, heritable change in the nucleotide sequence of the organism. Mutation may occur due to the errors in DNA replication or may occurs due to the mutagens.

Joshua and Lederberg experiment explains that mutation is the non adaptive and random process that occur in the organism. He used the replica plating of E.coli and grows them on streptomycin drug. The bacteria was grown on the the primary plate and they are transferred to the secondary plate with streptomycin drug in the growth environment. The resistant strain of bacteria grows in the streptomycin environment.The pattern of bacteria growth on the plate explained that mutation occurs randomly and it is a non adaptive process.

Thus, the correct answer is option (d).

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4 years ago
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bulgar [2K]

A pegasus can be anatomically possible through the addition of features such as wings to a horse.

<h3>What is Anatomy?</h3>

This is referred ti a branch of science which studies the body structures of organisms in the environment.

A pegasus is a winged horse which is why the addition of wings will make it anatomically possible.

Read more about Pegasus here brainly.com/question/16483326

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2 years ago
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Answer:

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<span>What rock formation is represented by the blue line?

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