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3 years ago

What are some applications of PCR?

Biology

1 answer:

Alinara [238K]3 years ago

5 0

Answer:

PCR plays an integral role in food pathogen detection, plant genotyping for breeding, and GMO testing. In conclusion, since its introduction in the 1980s, PCR continues to prove to be a useful tool with broad applications in discovery biology, medical diagnostics, forensics, and agriculture.

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An increase in which gas would cause the most greenhouse warming of earth’s atmosphere

Pani-rosa [81]

Answer:Carbon dioxide accounts for most of the nation's emissions and most of the increase since 1990. Transportation is the largest source of greenhouse gas emissions in the United States, followed by electricity generation.

Explanation:

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2 years ago

The surface of the skin can be mapped into distinct regions, each served by a single spinal nerve: these regions are called:

Ivan

Answer:

The correct answer is D. The surface of the skin can be mapped into distinct regions, each served by a single spinal nerve: these regions are called dermatomes.

Explanation:

A dermatome is the area of skin innervated by a single spinal nerve and its spinal ganglion. The cutaneous nerves are those that reach the skin, picking up the sensitivity of the skin. Each cutaneous nerve is distributed in a certain area of skin, called a dermatome.

A pair of posterior or sensory roots and a pair of anterior or motor roots arise from each cord segment, joining laterally at the level of the intervertebral foramen to form a mixed spinal nerve. Each of these innervates a strip of skin called a dermatome, so the body surface can be considered a true mosaic of these.

In the extremities the arrangement of dermatomes is more complicated because of the embryological rotation of the limbs as they grow from the trunk.

6 0

3 years ago

If the number of cigarettes smoked increases, then the risk for lung cancer increases. Independent variable: _______ Dependent v

hodyreva [135]

Complete Question:

Part A: Identifying Variables

Read the following hypotheses and identify the variables.

If the number of cigarettes smoked increases, then the risk for lung cancer increases.

Independent variable: _______

Dependent variable: _______

If the number of sharks swimming in a coastal region increases, then the number of shark attacks on humans will also increase.

Independent variable: _______

Dependent variable: _______

If the amount of milk a person drinks increases, the strength of his or her bones will stay the same.

Independent variable: _______

Dependent variable: _______

Answer/Explanation:

Dependent variables are variables that is dependent on the independent variables. That is, it is the variable that changes as the independent variable changes.

Depedent variable is the main interest if a researcher. It is the variable that is measured in a research work.

In the above given hypotheses, the dependent and independent variables are shown below:

1. "risk for lung cancer" is dependent on the "number of cigarettes smoked".

"Risk for lung cancer" => dependent variable

Number of cigarettes => independent variable

2. "number of shark attacks on humans" is dependent on "number of sharks swimming".

Dependent variable => number of shark attacks on humans

Independent variable => number of sharks swimming

3. Dependent variable => strength of bone

Independent variable => amount of milk a person drinks

3 0

3 years ago

Read 2 more answers

Who is good with biology and learned about DNA?.

schepotkina [342]

Gimme the Q I got this fam

7 0

3 years ago

How are nerve cells adapted to carry electrical messages?

Troyanec [42]

Answer:

"The axon, the long, thin part of the neurone along which the impulse passes, is covered in a fatty myelin sheath, which acts as an electrical insulator."

Explanation:

"The dendrites receive incoming nerve impulses from other neurons."

7 0

3 years ago