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babymother [125]
3 years ago
9

3. Nowadays many people are using sunscreen lotions as per doctor's advice to protect

Biology
1 answer:
evablogger [386]3 years ago
7 0

Answer:

Ozone layer... pollution

Explanation:

The ozone layer is a layer in the atmosphere which provides a barrier between harmful UV rays and the Earth. However, pollution is quickly depleting the layer which in turn creates a higher risk of skin cancers and other conditions caused by harmful UV rays.

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List the steps of steroid hormone action.
Rina8888 [55]
Steroid hormones easily diffuse through the cell membrane. The hormone binds to its receptor in the cytosol, forming a receptor–hormone complex. The receptor–hormone complex then enters the nucleus and binds to the target gene on the DNA.
5 0
3 years ago
Help me please- will mark brainliest
Sever21 [200]

Answer:

The scale is same.

Explanation:

The scale of nuclear fusion reaction on earth  is the same as compared to fusion reactions that is happening in the sun because both reactions produces the same product i. e. energy and heat etc and both are occurring naturally. Due to large size of the sun, huge number of nuclear fusion reactions occur ac compared to the earth which is smaller in size so the scale of both nuclear fusion reactions are the same but vary in numbers.

8 0
3 years ago
How would a mistake in transcribing the DNA message affect your ability to catch the killer?
mel-nik [20]

Answer: When the DNA collected on the crime scene is being analysed in the forensic lab, the results will be inconclusive, because error in DNA transcription, particularly in mRNA encoding leads to inheritable phenotype change by reprogramming the transcriptional network, without changing the DNA. Transcription errors are brief with no long-term consequences. Due to mRNA being short-lived and the erroneous proteins are degraded. A decrease in transcription accuracy triggers cellular identity change.

Explanation: This is called epimutation, a heritable modification that results in the change of gene expression, but not the DNA sequence. Epimutation is not associated with DNA mutation, but is associated with the loss or gain of DNA methylation or other heritable changes of the chromatin.

6 0
3 years ago
Which pair of statements best describes an essential amino acid?
anygoal [31]

Answer: It is an amino acid that cannot be made by the body. It must be obtained from eating certain foods.

Explanation:

5 0
3 years ago
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how might a scientist a determine  whether trait sex-linked by observing the offspring of several genetic crosses
ASHA 777 [7]
They use Punnett squares to determine the sex traits or possibilities of having a boy or girl. They also determine the sex linked trait or the genes.
6 0
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