Explain its normal role and why scientists would regard it as the "guardian of the genome."

1 answer:

5 0

The gene p53, also called the guardian of the genome is located on the 17th chromosome in human genomes.
It was given this alternative name because it has a role in response to damage of DNA molecule and in preventing cancer.
The protein product of this gene stops the replication of damaged DNA, activates proteins that repair the DNA damage and if the reparation proteins fail to fix the damage it activates the process of apoptosis or so-called cell death in order to prevent the damaged cell to proliferate and potentially develop into a tumor.

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What kind of tests can be used to distinguish archaea from bacteria?

Rama09 [41]

Answer:

RNA Analysis

Explanation:

the test shows that in archaea, the RNA polymerase is complex and contains more subunits, than the RNA polymerase in bacteria.

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3 years ago

In the human body, skin, liver, muscle, and nerve cells all originated from one cell containing half-genomes contributed from ea

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Answer:

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3 years ago

A neighbor is walking her dog to the park during her lunch break on a beautiful sunny day. explain how her skin is working to pr

MAVERICK [17]

<span>1. A neighbor is walking her dog to the park during her lunch break on a beautiful sunny day. explain how her skin is working to protect her from ultraviolet radiation due to intense sun exposure. be sure to discuss the specific structures and substances involved in this protection.

Ultraviolet light is dangerous as it could damage the skin. The skin will react by producing a dark granule called melanin which will absorb the light. Melanin is produced by the melanocyte in the epidermis. This will make the skin looks darker, especially people that frequently exposed to light.

2. mike is beginning his summer football camp today. the temperature high today is 85 degrees with moderate humidity. discuss two ways the skin's structures and functions are working to provide homeostasis and temperature regulation in this football player.

The sweat glands will produce sweat and sent it to the epidermis. This will make the epidermis wet. If the humidity is low, the water in epidermis will be evaporated and taking heat from the skin.
When the temperature is too high, the blood vessel in dermis part of the skin will dilate to make the body lose heat more.

3. this weekend you are going camping with your closest friends and family. thankfully, the layers of your skin will help protect you during this adventure. discuss at least two ways each layer, the epidermis and dermis, may protect you on this excursion.

When camping, you might need to interact with the wild plant directly. The epidermis is made of keratinized squamous cell that could protect the skin from any physical damage like a sharp branch. It also protects from bacteria and other microorganisms.
Wilderness has a fluctuating temperature. The dermis has a fat that will help insulating heat when faced with a cold environment. It also has sweat glands to reduce body heat in the hot environment.</span>

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4 years ago

Canal that connects the third and fourth ventricles.

abruzzese [7]

Canal that connects the third and fourth ventricles is cerebral aqueduct (of Sylvius) canal.

<h3>What are the central canal?</h3>

The central canal, additionally known as the spinal foramen or ependymal canal, extends from the conus medullaris withinside the lumbar backbone to the caudal perspective of the fourth ventricle and is coated through a single layer of columnar ependymal cells . It represents the remnant of the lumen of the primitive neural tube.

The 3 ventricle is a slim, funnel-formed shape located among your proper and left thalamus, simply above your mind stem. The fourth ventricle is a diamond-formed shape that runs along your mind stem.