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Makovka662 [10]
2 years ago
9

Imagine that a doctor is culturing two types of cells: one from a malignant melanoma and one from a normal skin sample. How woul

d you expect these two cell populations to differ?
Biology
1 answer:
Lynna [10]2 years ago
5 0

Answer:

Malignant melanoma cells would have active telomerases that constantly replenish and lengthen telomeres.

Explanation:

Telomerase can be described as enzymes which add the repetitive sequences called telomeres at the end of a chromosome. Telomeres can be described as repetitive sequences at the end of the chromosome which are involved in protecting the chromosome from any damage.

In a normal skin cell, the telomeres will shorten with time. But in a malignant skin cell, the telomerase will add the repetitive sequence again and again. The telomers will not be able to shorten.

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Alika finds a certain kind of butterfly near her house. She reads that ultraviolet light is absorbed by the butterfly's wings, r
Helga [31]

Answer:

No, light can't cause the butterfly's wing's to glow.

Explanation:

Butterflies contain wings which are of different colors for attractiveness and also to show warning alarm for it's predator. They are attracted to light but they can't absorb sun light.

Their wings contain scales that are of different color.

5 0
2 years ago
A thrombus (blood clot) in the first branch of the arch of the aorta would affect the flow of blood to the ________. A. left sid
seropon [69]

Answer:

C. right side of the head and neck and right upper arm

Explanation:

The arch of aorta is a continuation of ascending aorta and terminates at the intervertebral disc of fourth and fifth thoracic vertebrae. The superior part of the arch of aorta branches off into three major arteries. The first branch of arch of aorta is the largest branch and is known as the brachiocephalic trunk.

The brachiocephalic trunk divides and forms the subclavian artery and right common carotid artery. Right common carotid artery supplied blood to the right side of the head and neck while the right subclavian artery delivers blood to the right upper limb.

Hence, any blood clot in the first branch of arch of aorta, that is the brachiocephalic trunk would affect the blood supply to the right side of the head and neck and right upper arm.

7 0
2 years ago
The edges of moving crustal plates are often defined by
Serhud [2]
The edge of two crustal plates that shift are known as plates that transform.
4 0
2 years ago
Nitrogen-fixing bacteria in soil can convert excess nitrogen into ________, which can contaminate groundwater.
max2010maxim [7]

Answer:

1. nitrogen fixing bacteria soil converts excess "nitrates"

Explanation:

usually caused by low h2o, water movement and lack of minerals to filter water and kill bacteria..

2 primary components of septic system are tank and a septic pump to regulate waste and store it in a tank underground. when full, a service has to engage in emptying the tank or it will contaminate water supply...

6 0
2 years ago
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The Earth is a unique planet in that it is covered by more than 70 percent water. There are several properties of water that mak
notsponge [240]

The higher-density liquid water shelters organisms from cold air better than the less-dense ice.

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2 years ago
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