What would be the first step in using PCR to copy a gene?

Answers

Answer 1

Answer: B. DNA is heated to separate strands
This is always the first step in a PCR reaction, the Heat acts as Helicase to unwind the double helix.

Related Questions

Which type of RNA carries a genetic code from DNA to the ribosome?A) mRNA B) qRNA C) rRNA D) tRNA
Organisms undergo many different processes in order to be able to store energy and utilize that energy. Through which of the processes is energy released in the form of ATP?
Some cells depend on the ability to move in order to survive. What do they use for such movement?
You can identify or classify archaea and eubacteria by _____.
How is pushing a ball up a ramp like active transport?

The ________ contains lobules with sinusoids (lined with macrophages. that lead to a central venous structure.A. liver
B. spleen
C. pancreas
D. stomach

Answers

The correct answer is (a.) liver. The liver contains the tubules with sinusoids which is lined with macrophages that leads to the central venous structure. A liver is a vital organ that serves as a gland that plays an important role in animal's and vertebrae's metabolism.

Taxonomy _____. brings order to understanding the immense diversity of life
is an unnecessary science
is a classification system
is the study of animal behavior

Answers

Answer:

Option (3)

Explanation:

Taxonomy is usually defined as the classification scheme that is applied to all living organisms, including micro-organisms, plants, and animals. The scientists adopted the hierarchical classification method, which enabled them to study their characteristics and categorize the biological diversities on earth. The organisms are prominently and easily identified by comparing their existing characteristics with the different types of categorized species.

Thus, it is a classification system.

Hence, the correct answer is option (3).

a classification system

The farther apart two genes are located on a chromosome the

Answers

Answer:

the more likely they are independently inherited

Explanation:

The distance between two genes on the same chromosome determines how these genes are inherited.

Two genes that are close together on the same chromosome are said to be linked and the probability of them being inherited together is high.

On the other hand, two genes that are far apart on the same chromosome are less likely to be inherited together, that is, they assort independently.

multiple choice. choose the one alternative that best completes the statement or answers the question. 1) matter a) has mass. b) all of the choices are correct. c) occupies space. d) is what life is composed of. e) is composed of elements. 1) 2) a compound a) contains two or more elements in a fixed ratio. b) is exemplified by sodium. c) is a solution. d) is less common than a pure element. e) is a pure element. 2) 3) the four most common elements in living organisms are a) c, h, o, na. b) c, h, o, fe.

Answers

Answer:

matter has mass

2.A

3.A

Explanation:

matter has mass and occupies space

elements in fixed ratios form a compound

the most common elements in organisms are carbon, hydrogen, oxygen and sodium

What distinguishes high blood pressure from conditions such as arteriosclerosis and atherosclerosis?

Answers

High blood pressure is a condition in which blood makes pressure on artery walls. It usually has no obvious symptoms, unless it is very high, and the only way to find out if high blood pressure is present is to measure it.

Arteriosclerosis is a condition in which blood vessels become thin and stiff. Atherosclerosis is a condition in which cholesterol, fats, and other substances build plaque inside the arteries. In both cases, blood flow is affected.

Answer:

Arteriosclerosis is a condition in which blood vessels become thin and stiff. Atherosclerosis is a condition in which cholesterol, fats, and other substances build plaque inside the arteries. In both cases, blood flow is affected.

Explanation:

What are the four classes of clouds based on altitude?

Answers

The cirrus clouds, cirrocumulus clouds, cirrostratus clouds, and cumulonimbus clouds.

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Which could result from a person who does not finish the prescribed amount of antibiotics for an infection?

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Which of these can be found in both gymnosperms and angiosperms

Describe the typical movement of ciliates.