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ollegr [7]
2 years ago
6

Question 12

Biology
1 answer:
Ludmilka [50]2 years ago
8 0

Answer:

The answer is D: Recombinant DNA is produced by pasting together DNA from two sources

Explanation:

Recombinant DNA, or rDNA, is made by pasting together 2 halves of DNA strands from different sources

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Describe what needs to occur in order for a metamorphic rock to form.
katovenus [111]

Answer:

Any sort of prexisting rock whether sedimentary, igneous, or even metamorphic rock must change under extreme conditions like extreme heat or pressure.

Explanation:

An igneous rock is a rock that has been created via cooling of magma.

A sedimentary rock is formed from sediments, whether they be natural like seashells, or other pieces of older rocks that have worn away. usually formed under pressure.

A metamorphic rock is a rock that's changed, because it was put under extreme pressure or exposed to extreme heat.

Think of the part morphic in the word metamorphic-it literally means that it morphed or that it changed dramatically.

There are two ways for a rock to become metamorphic under <u>extreme pressure</u> or <u>extreme heat</u><u>.</u> and there are two types of metamorphic rocks, <u>contact</u> <u>metamorphism</u> and <u>regional metamorphism</u><u>.</u>

Those mean pretty much exactly what they say.

If you have any more questions, ask, but i think I covered the most important parts of the answer.

best of luck

8 0
2 years ago
The electromagnetic waves with the highest frequencies are called:
Tasya [4]
The answer is b gamma
3 0
3 years ago
Earth moving equipment scrapes away soil to expose ore in the process of __(blank)_____.
Elanso [62]
Answer: strip mining

Strip mining is the process of removing the soil and rock above a surface. This process is followed by the removal of the exposed mineral too. Some techniques in strip mining are also called as the area mining or the contour mining. 

8 0
3 years ago
What are two structural parts of the virus?
Salsk061 [2.6K]
All viruses<span> contain the following </span>two components<span>: 1) a nucleic acid genome and 2) a protein capsid that covers the genome. Together this is called the nucleocapsid.</span>
8 0
3 years ago
Some operons have both a positive and negative control mechanism built into the DNA sequence of the operon. That means both an a
ahrayia [7]

Answer:

Following are the four combinations of active or inactive regulatory proteins that could be present anytime in the cell:

Active repressor , Active activator.

Active repressor, Inactive activator.

Inactive repressor, Active activator.

Inactive repressor, Inactive activator.

Explanation:

Use the attached diagram for

explanations on the four combinations of active or inactive regulatory proteins in cells.

7 0
3 years ago
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