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Eduardwww [97]
2 years ago
12

What do restriction enzymes do?

Biology
1 answer:
hodyreva [135]2 years ago
4 0

D. They cut DNA at specific sequences.

Explanation - Restriction enzymes are those enzymes that identify specific DNA sequences and cleaves them at that particular region. Restriction enzyme mainly cleaves DNA and are sometimes directed by RNA to make the incision.

Restriction enzymes are used to carry out many biotechnology related experiments. They are widely used to study DNA or genome of various organism. For different restriction sites, different restriction enzymes are there and each enzyme are chosen based on the study under consideration.

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River systems on the western side of the rocky mountains flow into the pacific ocean/ river systems on the eastern side of the r
GalinKa [24]

Option B i.e A Divide is the correct answer.

The Rocky mountains are also called a Divide or Continental Divide of Americas because these mountains separate river system flow in the pacific ocean and the river system which flows in the Atlantic ocean. The Continental divide is also called as the Great Divide.

6 0
3 years ago
Can someone please help me?
oee [108]
Hitherei thinkthe answeris1
4 0
3 years ago
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Refer to the paragraph about the formation of the isthmus of panama. the sister populations on opposite sides of the isthmus are
Dimas [21]
The answer is reproductive isolation. Reproductive isolation ensures members of different species do not produce offspring. In this case, geographical separation is ensuring that individuals from the two different populations are not able to mate with each other. Eventually, through different selective pressures, the two populations will diverge sufficiently in genotype to become distinctly different.
6 0
2 years ago
Some organisms are made of cells. TRUE or FALSE.
marusya05 [52]
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4 0
2 years ago
How do scientists think protobionts formed?
PSYCHO15rus [73]

Answer:

c

Explanation:

The very primitive and early microorganisms on the earth's surface were protobionts. Protobionts are cell-like microscopic structures, and they are made up of organic and inorganic molecules present in a lipid bilayer membrane. The layers of the lipid membranes were folded into bilayers and transformed into a bubble shape when placed in water. These membranes were selectively permeable and also observed shrinkage and swelling in osmotic conditions. Protobionts also possess the characteristics of reproduction.

(please vote me brainliest)

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