Transcription, Translation

Front

What is the structure of DNA?

Back

DNA is a double helix composed of two strands of nucleotides, which include a sugar, a phosphate group, and a nitrogenous base (adenine, thymine, cytosine, or guanine).

Front

What is the process of DNA replication?

Back

DNA replication is the process by which a cell makes an exact copy of its DNA before cell division, involving unwinding the double helix and synthesizing new complementary strands.

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.

Front

What are the nitrogenous bases found in RNA?

Back

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

Front

What is transcription in the context of protein synthesis?

Back

Transcription is the process of synthesizing mRNA from a DNA template, where the DNA sequence is copied into a complementary RNA sequence.

Front

What is the function of the anti-codon in tRNA?

Back

The anti-codon is a sequence of three nucleotides in tRNA that is complementary to a codon in mRNA, ensuring the correct amino acid is added during protein synthesis.

Front

How does the base pairing differ between DNA and RNA?

Back

In DNA, adenine pairs with thymine and cytosine pairs with guanine. In RNA, adenine pairs with uracil instead of thymine.

Front

What is the significance of the codon in mRNA?

Back

A codon is a sequence of three nucleotides in mRNA that specifies a particular amino acid during protein synthesis.

Front

What is the difference between DNA and RNA?

Back

One key difference is that DNA contains the base thymine, while RNA contains uracil.

Front

What is the role of ribosomes in protein synthesis?

Back

Ribosomes are the cellular structures where protein synthesis occurs, facilitating the translation of mRNA into a polypeptide chain.