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Fed [463]
3 years ago
15

What does polymerase chain reaction (PCR) do?

Biology
2 answers:
Salsk061 [2.6K]3 years ago
7 0
PCR is a laboratory technique used to make multiple copies of a segment of DNA. PCR is very precise and can be used to amplify, or copy, a specific DNA target from a mixture of DNA molecules.
Jlenok [28]3 years ago
7 0

Answer:

Makes more copies of a sample of DNA

Explanation:

Apex

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Match each movement with the correct label.
Nikolay [14]

Answer:

flexion - depression

extension - elevation

adduction - medial rotation

abduction - lateral rotation

Explanation:

Flexion is the process of bending an arm or leg. It occurs as a result of the contraction of the muscles. Depression is a downward movement. Hence, flexion refers to the depression of an arm or leg.

Extension is the process of stretching the body parts. Elevation is an upward movement. Hence, extension refers to the elevation of body parts.

Adduction is the movement of a limb or other part of the body towards the midline or another part of the body. The movement of the limb towards the midline of the body is known as medial rotation.

Abduction is the movement of a limb or other part of the body away from the midline of the body. The movement of the limb away from the midline of the body is known as lateral rotation.

8 0
3 years ago
If a person is heterozygous for the Δ32 allele of the CCR5 gene, how many of the four daughter cells produced by meiosis will ha
never [62]

Answer:

The correct option is B: 2

Explanation:

Before meiosis takes place, the entire genetic material within the cell is replicated, this results in 2 copies of the 2n DNA. Since the person is heterozygous for the mutated allele, there is one copy of it present within one 2n set of chromosomes. Two of the 2n chromosomal sets means there would be two copies of it present in total and when the segregation event happens to create haploid cells, two of the cells will inherit the mutated copy.

Hope that answers the question, have a great day!

6 0
3 years ago
Explain the name atp by listing all the molecules that make it up
katrin [286]
ATP stands for adenosine triphosphate so it is made of adenine connected with a sugar called ribose and that is connected to 3 phosphates hence the name atp
3 0
4 years ago
Why are c4 plants able to photosynthesize with no apparent photorespiration? they conserve water more efficiently. they exclude
patriot [66]
They use pep carboxylase.
8 0
3 years ago
Are unsaturated fats less healthy than saturated fats
hichkok12 [17]
Unsaturated fats are healthier if eaten in healthy doses they lower LDL cholesterol levels and reduce risk of heart disease
7 0
3 years ago
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