Cell Cycle & Mitosis DCA Review - Flashcards

Front

Division of the nucleus is represented by what letter?

Back

D

Answer explanation

The division of the nucleus is known as mitosis or meiosis, commonly represented by the letter D in diagrams. Therefore, the correct answer is D.

Front

Is cytokinesis a stage of mitosis?

Back

False

Answer explanation

Cytokinesis is not a stage of mitosis; it is the process that follows mitosis, dividing the cytoplasm of a parental cell into two daughter cells. Therefore, the statement is False.

Front

In what phase of mitosis do long strands of chromatin condense and coil into visible chromosomes?

Back

Prophase

Answer explanation

During prophase, chromatin condenses and coils into visible chromosomes, making them easier to identify under a microscope. This is the first stage of mitosis where chromosomal structures become apparent.

Front

The phases of mitosis IN ORDER are:

Back

Prophase, Metaphase, Anaphase, Telophase

Answer explanation

The correct order of mitosis phases is Prophase, Metaphase, Anaphase, and Telophase. This sequence is essential for proper cell division, ensuring chromosomes are accurately separated and distributed.

Front

Chromatin refers to DNA that is _________________.

Back

long relaxed strands

Answer explanation

Chromatin is the form of DNA that is long and relaxed, allowing for gene expression and replication. In contrast, tightly coiled and condensed DNA refers to chromosomes, which are not the same as chromatin.

Front

During what stage of mitosis does the nuclear membrane (envelope) break up and the nucleolus disappear?

Back

Prophase

Answer explanation

During prophase, the nuclear membrane breaks down and the nucleolus disappears, allowing the chromosomes to condense and become visible. This is a key event that prepares the cell for the subsequent stages of mitosis.

Front

What holds identical replicated sister chromatids together?

Back

centromere

Answer explanation

The centromere is the region that holds identical replicated sister chromatids together during cell division, ensuring proper separation into daughter cells.

Front

The longest phase of the Cell Cycle is _______________.

Back

Interphase

Answer explanation

The longest phase of the Cell Cycle is Interphase, which includes G1, S, and G2 phases. It accounts for the majority of the cell's life, while Mitosis and Cytokinesis are much shorter processes.

Front

A chromosome is _________________.

Back

tightly coiled and condensed DNA

Answer explanation

A chromosome is tightly coiled and condensed DNA, which allows it to fit within the cell nucleus. This structure is essential for proper cell division and genetic information storage.

Front

The final result after mitosis and cytokinesis is __________.

Back

two daughter cells with identical genetic material

Answer explanation

The final result of mitosis and cytokinesis is two daughter cells that are genetically identical to each other and to the original parent cell, ensuring the preservation of genetic material.