The Cell Cycle (Lab 7)

Which of the following is not part of interphase? A) cytokinesis B) first gap phase C) second gap phase D) synthesis phase

A

chromosome

A doubled rod of condensed chromatin; contains DNA that carries genetic information

mitosis

A process that takes place in the nucleus of a dividing cell, involves a series of steps, and results in the formation of two new nuclei each having the same number of chromosomes as the parent nucleus. Asexual reproduction

telophase

After the chromosome seperates, the cell seals off, Final Phase of Mitosis.

cell cycle

An ordered sequence of events in the life of a eukaryotic cell, from its origin in the division of a parent cell until its own division into two.

centromere

Area where the chromatids of a chromosome are attached

A cell in the stage of G-zero A) divides continuously. B) ceases cell division. C) exhibits cytokinesis. D) exists in a gap phase

B

A karyotype is the diagnosis of centrioles and spindle fibers. A) True B) False

B

Daughter cells are formed from cell cycles. A) True B) False

B

Sister chromatids separate to opposite poles during A) telophase. B) anaphase. C) prophase. D) metaphase.

B

Which of the following events occurs during telophase? A) sister chromatids separate B) chromosomes align along equator C) cytokinesis D) spindle apparatus forms

C

Which of the following events occurs in prophase? A) spindle disappears B) nuclear envelopes reassemble C) chromosomes condense D) sister chromatids separate

C

Cancer

Cells go through checkpoints and divide uncontrollably

prophase

Chromatin condenses into chromosomes

Picture of metaphase

Chromosomes line up at the equator of the cell.

metaphase

Chromosomes line up in the middle of the cell

cytokinesis

Complete separation of the 2 new cells resulting from mitosis.

Chromosome

Condensed fibers of DNA

Which is the correct sequence of the M (mitotic) phase? A) telophase, prophase, metaphase, anaphase B) prophase, anaphase, metaphase, telophase C) prophase, telophase, metaphase, anaphase D) prophase, metaphase, anaphase, telophase

D

Picture of prophase

DNA fist condenses and forms chromosomes

chromatid

Each half of the chromosome

Order of Interphase

G1, S, G2

Interphase

Majority of cell cycle is in this phase

interphase

Period of time where a cell carries on metabolism and replicates chromosomes prior to cell division

asexual reproduction

Process by which a single parent reproduces by itself

Order of Mitosis

Prophase, Metaphase, Anaphase, and Telophase (PMAT)

Picture of anaphase

Sister chromatids get pulled apart

anaphase

Sister chromatids separate

Picture of cytokinesis

The division of the cytoplasm.

Picture of telophase

Two nuclei start to re-form, cleavage begins to form.

Centromere

central part of chromosome, joining the two sister chromatids

Spindle fiber

emerge from centrioles, attach to chromosomes to pull them apart during mitosis

Cytokinesis

final stage of mitosis, cells divide and move apart

Prophase

first stage of mitosis, nuclear envelope disappears, chromosomes condense

Telophase

fourth stage of mitosis, cells begin to form cleavage furrow (animal) or cell plate (plant) and divide

G0 phase

interphase stage of cell cycle where cell goes into resting/not growing or dividing stage (seen in cancer cells)

G1 phase

interphase stage of cell cycle where cell grow and synthesizes proteins

G2 phase

interphase stage of cell cycle where cell grows and prepares to go into mitosis phase

S phase

interphase stage of cell cycle where cell replicates DNA

Centriole

organelle the sends out spindle fibers

Purpose of mitosis

organisms' growth, damage repair, asexual reproduction in single celled organisms

Metaphase

second stage of mitosis, centrioles move to opposite ends of cell, spindle fibers attach to chromosomes, chromosomes line up in middle

Chromatid

single copy of DNA strands

Mitosis

stage of cell cycle where the cell divides

Anaphase

third stage of mitosis, spindle fibers shorten pulling chromosomes apart