Protein Synthesis

What is the difference between DNA and RNA?

• DNA is single-stranded and contains uracil, while RNA is double-stranded and contains thymine.

• DNA is double-stranded and contains thymine, while RNA is single-stranded and contains uracil.

• DNA and RNA are both double-stranded and contain thymine.

• DNA is single-stranded and contains thymine, while RNA is double-stranded and contains uracil.

What is the role of tRNA in protein synthesis?

• tRNA transports amino acids to the ribosome and matches them to the codons in mRNA.

• tRNA synthesizes proteins directly from amino acids.

• tRNA acts as a catalyst for the formation of peptide bonds.

• tRNA is responsible for the transcription of DNA into RNA.

What is the end product of protein synthesis?

• A polypeptide chain that folds into a functional protein.

• A nucleotide sequence that codes for RNA.

• A lipid molecule that serves as a cell membrane.

• An amino acid that is used for energy.

What is the function of ribosomes in protein synthesis?

• Ribosomes are the sites where proteins are synthesized by translating mRNA.

• Ribosomes are responsible for DNA replication.

• Ribosomes help in the transport of proteins to the cell membrane.

• Ribosomes are involved in the breakdown of fatty acids.

What is a mutation?

• A mutation is a change in the DNA sequence that can affect protein synthesis.

• A mutation is a type of protein that helps in DNA replication.

• A mutation is a virus that alters the genetic material of a host.

• A mutation is a process of cell division that leads to genetic variation.

What is the process of translating mRNA into a protein called?

• Transcription

• Translation

• Replication

• Translocation

What are the building blocks of proteins?

• Nucleotides

• Fatty acids

• Amino acids

• Monosaccharides

What is the role of mRNA in protein synthesis?

• mRNA carries the genetic information from DNA to the ribosome for protein synthesis.

• mRNA helps in the replication of DNA.

• mRNA is responsible for the folding of proteins.

• mRNA transports amino acids to the ribosome.

DNA holds the code for making

• carbohydrates

• lipids

• proteins

• nucleic acids

What is the significance of the start codon?

• It signals the end of protein synthesis.

• It is the site where ribosomes bind to mRNA.

• It signals the beginning of protein synthesis.

• It codes for the amino acid methionine.