3A and 3B CSA Review

Front

What is mRNA?

Back

mRNA (messenger RNA) is a type of RNA that carries genetic information from DNA to the ribosome, where proteins are synthesized.

Front

What is the process of transcription?

Back

Transcription is the process by which a strand of mRNA is synthesized from a DNA template.

Front

What is the complementary base pairing rule in DNA?

Back

In DNA, adenine (A) pairs with thymine (T), and cytosine (C) pairs with guanine (G).

Front

What is DNA replication?

Back

DNA replication is the process of making a copy of DNA, where each new DNA molecule consists of one old strand and one new strand.

Front

What does semiconservative replication mean?

Back

Semiconservative replication means that each new DNA molecule contains one original strand and one newly synthesized strand.

Front

What is a nucleotide?

Back

A nucleotide is the basic building block of DNA and RNA, consisting of a sugar, a phosphate group, and a nitrogenous base.

Front

What are the three parts of a DNA nucleotide?

Back

The three parts of a DNA nucleotide are a phosphate group, a deoxyribose sugar, and a nitrogenous base.

Front

What is the role of the start codon in translation?

Back

The start codon (AUG) signals the beginning of protein synthesis during translation.

Front

What is the function of ribosomes in protein synthesis?

Back

Ribosomes are the cellular structures where proteins are synthesized by translating mRNA into amino acid sequences.

Front

What is the difference between DNA and RNA?

Back

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