DNA Replication and Protein Synthesis

What is the transcribed mRNA strand for the DNA sequence CATTAA?

• GUAAUU

• CAGGAA

• GUAUUA

• CATTAA

What is the function of ribosomes in protein synthesis?

• Ribosomes are the sites where amino acids are assembled into proteins.

• Ribosomes are responsible for DNA replication.

• Ribosomes transport proteins to the cell membrane.

• Ribosomes synthesize lipids for cellular functions.

What is the process called when DNA is copied?

• Replication

• Transcription

• Translation

• Recombination

What are the four bases of RNA?

• Adenine (A), Thymine (T), Cytosine (C), Guanine (G)

• Adenine (A), Uracil (U), Cytosine (C), Guanine (G)

• Adenine (A), Uracil (U), Cytosine (C), Thymine (T)

• Adenine (A), Uracil (U), Guanine (G), Thymine (T)

What is the difference between DNA and RNA?

• DNA is single-stranded and contains ribose sugar.

• DNA is double-stranded and contains deoxyribose sugar, while RNA is single-stranded and contains ribose sugar.

• DNA and RNA are identical in structure and function.

• RNA is double-stranded and contains deoxyribose sugar.

What is the significance of the start codon AUG?

• AUG is the start codon that signals the beginning of protein synthesis and codes for Methionine.

• AUG is a codon that signals the end of protein synthesis.

• AUG is a codon that codes for Tryptophan.

• AUG is a codon that is involved in DNA replication.

What is the amino acid sequence for the mRNA strand AUU-AAG-UGC-GGG?

• Ile-Lys-Cys-Gly

• Ala-Ser-Thr-Gly

• Val-Gly-Leu-Arg

• Asp-Glu-Gly-Pro

What is transcription in the context of DNA and RNA?

• Transcription is the process of translating mRNA into proteins.

• Transcription is the process of copying a segment of DNA into mRNA.

• Transcription is the process of replicating DNA into DNA.

• Transcription is the process of converting RNA back into DNA.

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.

What is translation in the context of protein synthesis?

• The process of converting DNA into RNA.

• The process of decoding mRNA to synthesize proteins.

• The process of replicating DNA before cell division.

• The process of folding proteins into their functional shapes.