2024 Biology Fall Semester EXAM

Front

What is the longest phase of the cell cycle?

Back

Interphase is the longest phase of the cell cycle, where the cell spends most of its time preparing for division.

Front

What is a virus?

Back

A virus is a microscopic infectious agent that can only replicate inside the living cells of an organism. It is not classified as a bacterium.

Front

True or False: Viruses are bacteria.

Back

False. Viruses and bacteria are different types of microorganisms.

Front

What does homozygous recessive mean?

Back

Homozygous recessive refers to an organism that has two identical recessive alleles for a trait, such as 'rr'.

Front

During which stage of meiosis does crossing over occur?

Back

Crossing over occurs during Prophase I of meiosis, where homologous chromosomes exchange genetic material.

Front

Define Mitosis.

Back

Mitosis is the process of cell division that results in two genetically identical daughter cells from a single parent cell.

Front

What is the purpose of Interphase in the cell cycle?

Back

Interphase prepares the cell for division by growing, replicating DNA, and producing necessary proteins.

Front

What are the main stages of the cell cycle?

Back

The main stages of the cell cycle are Interphase (G1, S, G2) and the Mitotic phase (Mitosis and Cytokinesis).

Front

What is the difference between haploid and diploid cells?

Back

Haploid cells have one set of chromosomes (n), while diploid cells have two sets (2n).

Front

What is the role of cytokinesis?

Back

Cytokinesis is the process that divides the cytoplasm of a parental cell into two daughter cells after mitosis.