DNA and Protein Synthesis Unit Test Review

Front

What is translation in the context of protein synthesis?

Back

Translation is the process by which ribosomes synthesize proteins using the mRNA template, where codons on the mRNA are matched with anticodons on tRNA to add amino acids to a growing polypeptide chain.

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 is a codon?

Back

A codon is a sequence of three nucleotides on mRNA that corresponds to a specific amino acid or a stop signal during protein synthesis.

Front

What is an anticodon?

Back

An anticodon is a sequence of three nucleotides on tRNA that is complementary to a codon on mRNA, allowing for the correct amino acid to be added during translation.

Front

What is a peptide bond?

Back

A peptide bond is a covalent bond that links amino acids together in a protein, formed during the process of translation.

Front

What is nondisjunction?

Back

Nondisjunction is the failure of homologous chromosomes or sister chromatids to separate properly during cell division, leading to an abnormal number of chromosomes in daughter cells.

Front

What is a mutagen?

Back

A mutagen is an agent, such as chemicals or radiation, that causes changes or mutations in the DNA sequence.

Front

What are nitrogenous bases?

Back

Nitrogenous bases are the building blocks of DNA and RNA, consisting of adenine (A), thymine (T), cytosine (C), guanine (G), and uracil (U) in RNA.

Front

What is the complementary DNA strand for ATCGGC?

Back

The complementary DNA strand for ATCGGC is TAGCCG.

Front

What is the structure of DNA often compared to?

Back

The structure of DNA is often compared to a twisted ladder, where the rungs are formed by nitrogenous base pairs.