Question

name the 2 main phases of the cell cycle *
interphase and mitotic (m) phase
mitosis and cytokinesis
g1 & g2
synthesis phase and mitosis

which of the following occurs during g1 phase? *
cell division
dna replication
organelles get replicated
cell prepares for mitosis

which of the following is considered a responsibility of cell division? *
the growth and development of an organism
reproduction
the repairing or replacing of old or dead cells
all of the above

Explanation:

First Question (Name the 2 main phases of the cell cycle)

The cell cycle has two main phases: Interphase (where the cell grows, replicates DNA, and prepares for division) and the Mitotic (M) Phase (where cell division, including mitosis and cytokinesis, occurs). So the correct option is "Interphase and Mitotic (M) Phase".

• Cell division occurs during the M phase (mitosis and cytokinesis), not G1.
• DNA replication occurs during the S (synthesis) phase, not G1.
• During G1 phase, the cell grows, and organelles get replicated (along with other metabolic activities to prepare for DNA replication and division).
• "Cell prepares for mitosis" occurs during the G2 phase, not G1.

So the correct option is "Organelles get replicated".

• Cell division is responsible for growth and development of an organism (as cells divide to increase in number for growth).
• It is responsible for reproduction (e.g., in single - celled organisms, cell division is reproduction; in multicellular organisms, it is part of sexual/asexual reproduction processes).
• It is responsible for repairing or replacing old or dead cells (e.g., in skin, blood cells).

Since all these are responsibilities of cell division, the correct option is "All of the above".

Answer:

A. Interphase and Mitotic (M) Phase (assuming the first option is labeled A, adjust label as per original, here we assume the first option is the correct one with text "Interphase and Mitotic (M) Phase")

Second Question (Which of the following occurs during G1 phase?)