Identify the Correct Order for the Phases of the Mammalian

question 39

Multiple Choice

Identify the correct order for the phases of the mammalian cell cycle.

• A) G1,G2,M,S
• B) G1,G2,S,M
• C) G1,M,G2,S
• D) G1,S,G2,M

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Definitions:

Cortex

The outer layer of an organ or structure, such as the brain’s cortex involved in many higher-level brain functions, or the cortex of plants responsible for storage and transport.

Pericycle

A layer of cells in plant roots that can give rise to lateral roots and is involved in secondary growth.

Endodermis

The innermost layer of cells in the cortex of a plant root, functioning as a selective barrier that regulates the passage of substances from the soil into the vascular system.

Stele

The central part of a root or stem containing the vascular tissue of xylem and phloem, responsible for the transport of water and nutrients.