DNA Replication, Protein Synthesis, and Mutations

Front

What is DNA replication?

Back

The process by which a DNA molecule makes a copy of itself, resulting in two identical DNA molecules.

Front

What is the role of mRNA in protein synthesis?

Back

mRNA (messenger RNA) carries the genetic information from DNA to the ribosome, where proteins are synthesized.

Front

What are codons?

Back

Codons are sequences of three nucleotides in mRNA that correspond to specific amino acids or stop signals during protein synthesis.

Front

What is a mutation?

Back

A mutation is a change in the DNA sequence that can lead to changes in the structure and function of proteins.

Front

What is the structure of DNA?

Back

DNA is structured as a double helix, consisting of two strands of nucleotides twisted around each other.

Front

What are nucleotides?

Back

Nucleotides are the building blocks of DNA and RNA, composed of a sugar, a phosphate group, and a nitrogenous base.

Front

What is the function of tRNA?

Back

tRNA (transfer RNA) transports specific amino acids to the ribosome during protein synthesis, matching them to the corresponding mRNA codons.

Front

What is the significance of the start codon?

Back

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

Front

What is the difference between DNA and RNA?

Back

DNA contains deoxyribose sugar and thymine, while RNA contains ribose sugar and uracil.

Front

What is transcription?

Back

Transcription is the process of synthesizing RNA from a DNA template, resulting in mRNA.