1.5 DNA and Protein Synthesis

Front

What is the role of helicase in DNA replication?

Back

Helicase is the enzyme that unzips the DNA double helix, separating the two strands to allow for replication.

Front

What does tRNA do in protein synthesis?

Back

tRNA (transfer RNA) carries amino acids to the ribosome, where they are added to the growing polypeptide chain during protein synthesis.

Front

What are the three components of a nucleotide?

Back

A nucleotide is made up of a sugar, a phosphate group, and a nitrogen base.

Front

How many codons are present in the sequence AAU GCG AUG?

Back

There are 3 codons in the sequence AAU GCG AUG.

Front

What type of RNA is responsible for carrying amino acids?

Back

tRNA (transfer RNA) is responsible for carrying amino acids to the ribosome.

Front

What is the function 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 nitrogen bases found in DNA?

Back

The nitrogen bases in DNA are adenine (A), thymine (T), cytosine (C), and guanine (G).

Front

What is the difference between DNA and RNA?

Back

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

Front

What is a codon?

Back

A codon is a sequence of three nucleotides in mRNA that corresponds to a specific amino acid.

Front

What is the role of ribosomes in protein synthesis?

Back

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