DNA Replication, Protein Synthesis, and Mutations Review

Front

What is the first step of protein synthesis?

Back

Transcription

Front

What enzyme is responsible for unwinding the DNA double helix during replication?

Back

DNA helicase

Front

What is the difference between a point mutation and a frameshift mutation?

Back

A point mutation involves a single nucleotide change, whereas a frameshift mutation involves the insertion or deletion of nucleotides.

Front

During which phase of the cell cycle does DNA replication occur?

Back

S phase

Front

How many nucleotides make up a codon in the genetic code?

Back

Three

Front

What is DNA replication?

Back

The process of copying the DNA molecule to produce two identical DNA strands.

Front

What is the role of RNA polymerase in protein synthesis?

Back

RNA polymerase synthesizes RNA from a DNA template during transcription.

Front

What are the three main types of RNA involved in protein synthesis?

Back

mRNA (messenger RNA), tRNA (transfer RNA), and rRNA (ribosomal RNA).

Front

What is a mutation?

Back

A change in the DNA sequence that can lead to changes in protein structure and function.

Front

What is the function of DNA polymerase?

Back

DNA polymerase synthesizes new DNA strands by adding nucleotides complementary to the template strand.