2 Describe how point mutation and frameshift mutation affect the synthesis of proteins?


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2014-06-29 20:45:02
2014-06-29 20:45:02

A point mutation is a change in a single base pair in DNA. A change in a single nitrogenous base can change the entire structure of a protein because a change in a single amino acid can affect the shape of the protein.

A frameshift mutation is a mutation in which a single base is added or deleted from DNA. A single base is lost from a DNA strand which causes this new sequence with the deleted base, to be transcribed into mRNA. Then, the mRNA is out of position by one base. As a result, every codonafter the deleted base is different. This mutation causes nearly every amino acid in the protein after the deletion to be changed.


Related Questions

A frameshift mutation occurs in a sex cell of an adult otter. The mutation is found on a gene that produces proteins used to build bones. Which describes the most likely effect of this mutation? nโ€ฆ

RNA is involved in the synthesis of proteins.

Synthesis of proteins occurs in the Rough Endoplasmic Reticulum.

After the synthesis of proteins the proteins go to work in the cell and the mRNA and tRNA can be reused to make more proteins.

A mutation in a DNA nucleotide sequence would be more harmful than a mutation in a mRNA nucleotide sequence because it could cause the synthesis of multiple nonfunctional proteins in comparison to a mutation in a mRNA nucleotide sequence that would be less harmful because it would result in a few nonfunctional proteins.

Proteins are synthesized on the ribosomes.

6 steps in the synthesis of proteins

Protein synthesis is the process by which proteins are made in the body.

Protein synthesis is a biochemical process that occurs within the cell of an organism. The amino acids are linearly arranged into proteins through the involvement of various enzymes as well as RNA.

DNA is the blueprint for making cell proteins. The synthesis of the proteins in the cytoplasm occurs according to the instructions in the DNA.

Synthesis means "to make", so maybe protein synthesis is the making of proteins; Protein synthesis is the transcription and translation of specific parts of DNA to form proteins.

Proteins are made on ribosomes. They are the site of protein synthesis

Proteins are synthesized in the Rough Endoplasmic Reticulum.

Protein synthesis takes place on the ribosomes.

Amino acids are the building blocks of proteins. There are 20 kinds of amino acids that are used in the synthesis of body proteins.

If you ask the control of the synthesis of proteins, the answer is following: protein synthesis is controlled again by proteins (which are, of course, coded by the DNA); these regulatory proteins either regulate proteosynthesis in cytoplasm by influencing ribosomes and/or mRNA (the protein synthesis itself) or in the nucleus by stimulating or inhibiting expression of particular genes (which code proteins again, as every gene does).

There are 20 naturally occurring amino acids that are used in the synthesis of proteins.

The production of proteins in calls is called protein synthesis.

No; they are formed by translation. Carbohydrates are formed by dehydration synthesis.

Transport proteins are not responsible for the secretion. Golgi vesicles transport proteins. Proteins synthesis occur in cytoplasm.

Proteins.Ribosomes are the sites of synthesis of proteins. It is called as protein factories.

Lipids are made in smooth ER. Proteins are made in ribosomes

Smooth ER: Important in the synthesis of lipids and membrane proteins.Rough ER: Important in the synthesis of other proteins.

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