DNA Replication and Protein Synthesis Test Review

Front

What type of cell has a nucleus?

Back

Eukaryotic cells have a nucleus.

Front

What is the correct order of the processes involved in gene expression?

Back

Replication, transcription, translation.

Front

How many amino acids are produced from a gene composed of 6000 nitrogenous bases?

Back

2000 amino acids are produced, as each amino acid is coded by a sequence of three nitrogenous bases.

Front

What process occurs at the point where DNA is transcribed into mRNA?

Back

Transcription is the process where DNA is converted into mRNA.

Front

What is a change in the gene sequence called?

Back

A change in the gene sequence is best defined as a DNA mutation.

Front

What are the main components of DNA?

Back

The main components of DNA are nitrogenous bases (adenine, thymine, cytosine, guanine), a sugar (deoxyribose), and phosphate groups.

Front

What is the role of mRNA in protein synthesis?

Back

mRNA serves as a template for translating the genetic code into a sequence of amino acids during protein synthesis.

Front

What is the difference between transcription and translation?

Back

Transcription is the process of synthesizing mRNA from DNA, while translation is the process of synthesizing proteins from mRNA.

Front

What is a codon?

Back

A codon is a sequence of three nitrogenous bases in mRNA that codes for a specific amino acid.

Front

What is the function of ribosomes in protein synthesis?

Back

Ribosomes are the cellular structures where translation occurs, facilitating the assembly of amino acids into proteins.