Which Accurately Describes The Relationship Between Cancer Risk And Exposure To Mutagens

Which of the following is true of transcription and translation?

Transcription and translation are described in this statement Translation is the process of converting RNA into proteins. We may deduce the passage of genetic information from DNA to RNA to proteins based on Francis Crick’s basic postulate in molecular biology.

Which of the following statements best represents the link between proteins, DNA, and cells?

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Which of the following best represents the link between proteins, DNA, and cells? DNA, the genetic code that creates proteins, also serves as the blueprint for cells. Proteins are the building blocks of DNA, and they instruct cells on how to operate.

In protein production, what role does a peptide bond play?

Peptide bonds are used in protein synthesis for what? amino acids are linked by this molecule.

In a bacterial ribosome, where and how does peptide bond creation take place?

The following is an answer. When two charged tRNAs are brought near enough, a peptide bond is created by ribozyme between the two amino acids (found on charged tRNA) attached to the two locations of the big subunits of bacterial ribosomes.

Is there a certain time when DNA replication occurs?

DNA replication takes place in interphase during the S-stage. Replication of genetic material may be accomplished in the laboratory by the use of DNA amplification (artificially, outside a cell). There are two ways to initiate DNA synthesis: by using a DNA polymerase extracted from cells and a synthetic DNA primer.

In translation, what is the role of peptide bonds?

The carboxyl end of one amino acid is linked to the amino end of another by a peptide bond, which causes one water molecule to be ejected. Amino acid side chains R1 and R2 are referred to as R1 and R2.

Why is it called “genetic mutations”?

What Is a Mutation in a Gene? An alteration to one or more genes is referred to as a gene mutation (myoo-TAY-shun). Some genetic abnormalities or illnesses may result from mutations in certain genes.

How would you characterise the interaction between DNA and proteins as one of the following?

What is the link between DNA, proteins and RNA? In order to make proteins, DNA is first transcribed into RNA, which is then translated into amino acids.

When a stop codon is altered, what happens?

Hence, premature nonsense or stop codons cause nonsense mutations into the DNA sequence. The protein produced from the mutant sequence is shorter and less complete than normal. The conclusion is that the vast majority of nonsense mutations are ineffective proteins.

Which of the following best characterises a codon?

Answer. Codes for an amino acid are encoded in a codon’s sequence of three nucleotides.

What is the only DNA base that is present in Brainly?

As far as we know, only DNA has the nitrogenous base Thymine.

What is the mechanism through which the genetic code operates?

The Code of Life

The four nucleotide bases of DNA, adenine (A), cytosine (C), guanine (G) and thymine (T), are used in different ways to spell out three-letter “codons” that indicate which amino acid is required at each location inside a protein..

How is DNA reproduced in such a way that it is identical?

The nucleotide bases of DNA are broken apart so that the double helix may be replicated. Once all of the bases are linked together, the DNA polymerase enzyme aids in the creation of a new chain of DNA.

Is it possible to create peptide bonds during protein synthesis in a specific structure?

Polypeptide chains are transferred from the P site tRNA to amino acid groups of A site amino acids by a ribosomal enzyme known as Peptidyl Transferase (PTT). The amino acid at the A site forms a peptide bond with the polypeptide chain’s C terminus.

What is it about DNA that gives rise to the genetic code?

In what order are the nucleotides?
Each person’s genetic code is encoded by a sequence of letters in DNA, which are a combination of the letters A, C, G, and T. The DNA information is decoded by the cell in three-base chunks.

What is a codon’s function?

Definition. When three nucleotides (or “trinucleotides”) of DNA or RNA are joined together to create a codon, it encodes a specific amino acid or marks the end of protein production (stop signals). Sixty-one codons designate amino acids, whereas the last three serve as signal stoppers.

Peptide bonds: what are they and how do they form?

amide form of covalent chemical connection connecting two successive alpha-amino acids from C1 (carbon number one) of one alpha-amino acid and N2 (nitrogen number two) of another, along a peptide or protein chain, is known as an organic chemistry peptide bond

What is the source of mutations?

Indicated in Figure 2 is: Germ-line and somatic cells are both susceptible to mutation. Sexual reproduction transmits germ-line mutations, which occur in the reproductive cells (sperm or eggs), to the progeny of the organism.

Which of the following best characterises mitosis’s overall effect?

Which of the following statements most accurately explains how cells undergo mitosis? A single cell divides into two cells with identical DNA. Cancer patients’ tissue cultures (samples of cancer cells) are harvested and cultured in the lab.