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Papessa [141]
3 years ago
9

HURRY PLZ WILL GIVE BRAINLIEST

Biology
1 answer:
Anuta_ua [19.1K]3 years ago
6 0

Answer:

Freedom of choice and action

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How do scientists combine exogenous DNA with bacterial cells to produce a desired protein?
Goshia [24]
The correct answer of the question above is letter B. The exogenous DNA is inserted in the DNA of the bacteria.It is the process of combining exogenous DNA with bacterial cells that scientist used to <span> produce a desired protein. I hope I have answered your question.</span>
7 0
3 years ago
n cancer cells one allele of the tumor suppressor gene p53 is frequently mutated so that the protein is inactive, not produced,
artcher [175]

Answer:

If the cancer cell's DNA is sequenced than the anticipated results will be that the cytosines in or close to the promoter region will get methylated. It has been stated that in the cancer cells one allele of p53 is mutated and the other allele, however, of exhibiting an intact promoter, does not express the protein.  

Thus, it shows that the expression in the other allele gets suppressed by methylation rather than by mutation. Methylation generally takes place in CpG islands in or close to the promoter region and therefore inhibits transcription.  

5 0
3 years ago
If a cell lacked peroxisomes, what vital process would not occur?
mr Goodwill [35]

Answer;

Neutralization of free radicals

Explanation;

-Peroxisomes are small vesicles found around the cell. They have a single membrane that contains digestive enzymes for breaking down toxic materials in the cell. They differ from lysosomes in the type of enzyme they hold. Peroxisomes hold on to enzymes that require oxygen (oxidative enzymes).

-The oxidative enzymes that break down fatty acids and amino acids, resulting in, among other things, the production of the toxic substance, hydrogen peroxide.

4 0
3 years ago
Mendel found that if parents both heterozygous for two traits are crossed, the resulting phenotypic ratio will be 9:3:3:9.
Anna [14]
I think the answer is true, I hope this helps friend.
8 0
3 years ago
Read 2 more answers
How can a shortage of nutrients harm organisms in an ecosystem? How can an excess of nutrients harm organisms in an ecosystem? G
professor190 [17]

Answer:

Explanation:

Shortage of nutrients in an ecosstem can harm an organism because when nutrients are scarse or very limited for organism and did not meet up with the organism requirements, there will be reduced metabolism and this can cause malfunction. Shortage of nutrients can lead to decline in growth and can lead to spring up of some diseases in the organism because enough nutrients us not available for good metabolic processes and fight diseases.

For example when an organism is deficient in vitamins and carbohydrates, the organism will not have energy to power metabolic processes and for it's activities and vitamins deficient will make the organism not to have the ability to fight against disease.

Too much of nutrients also affect organisms negatively. When there is much build up of nutrients, it can be harmful to the organisms and restrict metabolic processes.

For example too much of nutriwnts like too much of fat can block blood artieries and veins and thus can lead to inability of blood to flow .

3 0
3 years ago
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