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3 years ago

A mutation that involves a single nucleotide is called.

Biology

1 answer:

alina1380 [7]3 years ago

8 0

Answer:

Point mutations are a broad category of mutations that describe a change in a single nucleotide of DNA, such as a substitution for another nucleotide, deletion of a nucleotide, or insertion of a single nucleotide into the DNA, resulting in DNA that differs from the normal or wild type gene...

or you can say:

Point mutations are a large category of mutations that describe a change in single nucleotide of DNA, such that that nucleotide is switched for another nucleotide, or that nucleotide is deleted, or a single nucleotide is inserted into the DNA that causes that DNA to be different from the normal or wild type gene ...

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SOMEONE PLEASE HELP ME OUT WITH THIS !!!

7nadin3 [17]

Answer: I think it is c

Explanation: It sounds better than the rest. Sorry if I am wrong!!

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3 years ago

Are there any drawbacks to only regulating at the transcriptional level and not the translational level or protein level?

bixtya [17]

Ans.

Gene regulation or regulation of gene expression involves mechanisms, used by the cells to enhance or reduce the expression of specific genes to make proteins or RNA. Gene regulation occurs at transcriptional level and post-transcriptional level, which involves regulation at translational level or protein level.

Regulation at translational level or protein level is also important as regulation at transcriptional level. Translational regulation controls formation of proteins from mRNA molecules and includes non-coding mRNAs and repressor proteins. It is important for cell growth, differentiation and cellular response to stress and provides an immediate adjustment of gene expression by directly regulating the protein concentration.

Regulation at protein level involves regulation of active protein. It includes regulation by various small molecules, post-translational modifications (such as phosphorylation), and proteolysis. Regulation only at transcriptional level is not sufficient to provide proper gene regulation and leads to various drawbacks, such as Fragile X Syndrome (due to defect in a protein).

Thus, 'gene regulation is important both at transcriptional level and at post-transcriptional level (during translation or protein level).'

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4 years ago

There are six classes of nutrients that must be considered when planning your diet: water, proteins, carbohydrates, fats, vitami

KiRa [710]

Answer:

Essential nutrients cannot be synthesized by the human body but are required for optimal functioning. Therefore. They must be obtained from food. Omega-3 fatty acids are prime examples.

You consume macronutrients (water. proteins, carbohydrates, and fats) in large quantities as opposed to micronutrients which you consume in small quantities

Dehydration can develop very quickly when exercising in hot/humid weather conditions.

Proteins are also called 'bodybuilders" due to their function within the body. Amino acids are the building blocks of proteins.

Explanation:

Essential nutrients are those nutrients that are required for the proper functioning of the body but cannot be synthesized by the body. They are obtained from external sources such as vegetables or synthesized artificially in the laboratories. Micronutrients as the name implies are taken in small amounts. Examples are the different types of vitamins.

Dehydration occurs when a person loses a good amount of water through sweating or urination. It can easily occur while exercising in hot weather conditions. Proteins repair the cells in our body and are, therefore, rightfully referred to as bodybuilders. Amino acids form proteins.

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3 years ago

Dna is coiled into chromosomes in a cell's

Marysya12 [62]

In eukaryotic cells the DNA is in the nucleus.

but in prokaryotic cells, it's in the
cytoplasm

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lesantik [10]

Answer:

Asking students to wash their hands on routine basis and also to keep the area clean.

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Hand sanitization is very important and hence considered as a primary step to control infection. Students should wash their hands on routine basis. Also, they should keep the area clean.

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