Fall 2024 Review Day 2

Front

What is the mitosis stage of the cell cycle?

Back

Mitosis is the process where a single cell divides into two identical daughter cells, involving the separation of sister chromatids.

Front

What occurs during interphase?

Back

Interphase consists of three phases: G1 (cell growth), S (DNA replication), and G2 (preparation for mitosis).

Front

What is a mutation?

Back

A mutation is a change in the DNA sequence that can lead to changes in the organism's traits.

Front

What is the base pairing rule in DNA?

Back

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

Front

What type of mutation is a substitution?

Back

A substitution mutation occurs when one base in the DNA sequence is replaced by another base.

Front

What happens during DNA replication?

Back

During DNA replication, the DNA molecule unwinds and each strand serves as a template for the formation of a new complementary strand.

Front

What is the significance of the S phase in the cell cycle?

Back

The S phase is crucial because it is when DNA is replicated, ensuring that each daughter cell receives an identical set of chromosomes.

Front

What is chromatin?

Back

Chromatin is a complex of DNA and proteins that condenses to form chromosomes during cell division.

Front

What is the role of sister chromatids during mitosis?

Back

Sister chromatids are identical copies of a chromosome that are separated during mitosis to ensure each daughter cell receives the same genetic information.

Front

What is telophase?

Back

Telophase is the final stage of mitosis where the chromosomes de-condense, and the nuclear envelope re-forms around each set of chromosomes.