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aleksklad [387]
3 years ago
11

Cancer is due to a mutation with in a gene that regulates cell growth. Some of these mutations are random, but some can be cause

d by______.
Biology
1 answer:
Katarina [22]3 years ago
6 0

Answer:

These changes can be caused by environmental factors such as ultraviolet radiation from the sun, or can occur if an error is made as DNA copies itself during cell division. Acquired mutations in somatic cells (cells other than sperm and egg cells) cannot be passed to the next generation.

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Nicotine increases atherosclerosis by the release of which neurotransmitter?
iVinArrow [24]

Adrenaline 

Nicotine is a substance that is addictive in nature commonly found in cigarette, that affect the nervous system by binding to the receptors in the brain and other part of the body. Atherosclerosis is the loss of elasticity or thickens of arteries walls. However, nicotine increases the release of neurotransmitter adrenaline into the blood which subsequently cause the development of atherosclerosis.

3 0
3 years ago
3. How does fluoroquinolone affect bacterial cells but not eukaryotic cells?
Valentin [98]

Answer:

In order to be useful in treating human infections, antibiotics must selectively target bacteria for eradication and not the cells of its human host. Indeed, modern antibiotics act either on processes that are unique to bacteria--such as the synthesis of cell walls or folic acid--or on bacterium-specific targets within processes that are common to both bacterium and human cells, including protein or DNA replication. Following are some examples.

Most bacteria produce a cell wall that is composed partly of a macromolecule called peptidoglycan, itself made up of amino sugars and short peptides. Human cells do not make or need peptidoglycan. Penicillin, one of the first antibiotics to be used widely, prevents the final cross-linking step, or transpeptidation, in assembly of this macromolecule. The result is a very fragile cell wall that bursts, killing the bacterium. No harm comes to the human host because penicillin does not inhibit any biochemical process that goes on within us.

hope this helps :) can i get brainliest?

Explanation:

5 0
3 years ago
Read 2 more answers
consider a cross between two individuals whose genotypes for two different loci are AaBb and AaBb. predict the outcomes of this
Mamont248 [21]

Answer:

It’s A,B,E!!

Explanation:

I just did it on USATestPrep!!

3 0
2 years ago
Which of the following is an example of catabolism? A. The synthesis of the cell membrane from precursor molecules B. The oxidat
Shtirlitz [24]

Answer:

The correct answer is option B. the oxidation of glucose in the cytoplasm and mitochondria.

Explanation:

The catabolism is the reaction or process that involves breakdown of the larger molecules into smaller molecules. This is the one of the metabolic reaction. Such reactions releases energy.

Oxidation of glucose is a catabolic reaction that involves spliting of glucose into water and oxygen in the respiration.

Thus, the correct answer is option B. the oxidation of glucose in the cytoplasm and mitochondria.

8 0
3 years ago
NO LINKS I WILL REPORT U
alexandr402 [8]

Answer:

Both of these are correct

moves constantly between Earth's surface and the atmosphere

and it is matter that is essential for life

4 0
3 years ago
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