Cell Cycle and Division Concepts

What is the primary reason multicellular eukaryotic organisms continuously produce new cells?

• To increase genetic diversity.

• To replace lost cells, grow, and develop.

• To produce gametes for reproduction.

• To store excess energy.

What term describes the entire life cycle of a cell, from its formation until it divides into two new cells?

• Mitosis

• Meiosis

• Cell cycle

• Cytokinesis

During the initial growth phase of the cell cycle, what happens within the cell?

• DNA is duplicated.

• The cell divides into two daughter cells.

• The cell grows in size and increases its sub-cellular structures.

• Chromosomes condense into X-shapes.

In a non-dividing cell, how is DNA typically structured within the nucleus?

• Coiled into compact chromosomes.

• Spread out in long, uncoiled strings.

• Arranged in pairs of X-shaped structures.

• Separated into two distinct sets.

What happens to DNA when a cell begins to prepare for division?

• It dissolves into the cytoplasm.

• It condenses into coiled packets called chromosomes.

• It is expelled from the cell.

• It forms a single, large strand.

In eukaryotic cells, where do the two copies of each chromosome in a pair originate from?

• Both copies come from the mother.

• Both copies come from the father.

• One copy comes from the mother and one from the father.

• They are newly created within the cell.

How many chromosomes are typically found in a human cell?

• 23

• 46

• 92

• 12

Before a cell divides, what happens to each chromosome?

• It is destroyed and new ones are formed.

• It duplicates, with the duplicate remaining attached to the original.

• It splits into two separate, identical chromosomes.

• It combines with another chromosome to form a larger structure.

During cell division, what is the function of the cell fibers that attach to the chromosomes?

• To protect the chromosomes from damage.

• To synthesize new DNA strands.

• To pull the chromosome arms to opposite sides of the cell.

• To condense the DNA into chromosomes.

What is true about the two daughter cells formed after cell division (cytokinesis)?

• They are genetically different from each other.

• They each contain half the DNA of the parent cell.

• They are identical to each other and to the parent cell.

• They immediately begin to specialize into different cell types.