NC EOC Review: Protein Synthesis & Gene Mutations

Front

What is the role of mRNA in protein synthesis?

Back

mRNA (messenger RNA) carries the genetic information from DNA to the ribosome, where it serves as a template for protein synthesis during translation.

Front

What are the four nitrogenous bases found in RNA?

Back

The four nitrogenous bases in RNA are adenine (A), uracil (U), cytosine (C), and guanine (G).

Front

What type of bond connects amino acids in a protein?

Back

Amino acids are connected by peptide bonds, which are formed during the process of translation.

Front

Where does transcription take place in a eukaryotic cell?

Back

Transcription occurs in the nucleus of eukaryotic cells.

Front

What are the two main steps of protein synthesis?

Back

The two main steps of protein synthesis are transcription and translation.

Front

What is the function of ribosomes in protein synthesis?

Back

Ribosomes are the cellular structures where translation occurs, synthesizing proteins by reading the mRNA sequence.

Front

What is the difference between transcription and translation?

Back

Transcription is the process of copying DNA into mRNA, while translation is the process of decoding mRNA to synthesize proteins.

Front

What is a gene mutation?

Back

A gene mutation is a change in the nucleotide sequence of a gene, which can affect protein synthesis and function.

Front

What are the possible effects of a gene mutation on protein synthesis?

Back

Gene mutations can lead to changes in the amino acid sequence of a protein, potentially altering its function or rendering it nonfunctional.

Front

What is the significance of the start codon in translation?

Back

The start codon (AUG) signals the beginning of translation and codes for the amino acid methionine.