GN 301 Module 2: Cell Cycle and Chromosomes

The ________ of a cell at the end of mitosis or meiosis, bringing about the separation into two daughter cells.

________ destroy spindle fibers in a cell so the view of chromosomes is unobstructed.

________ accomplish much of their growth, growing larger and making proteins and organelles needed for DNA synthesis.

The cell synthesizes a copy of the ________ in its nucleus.

________ can show whether an individual has a genetic disorder based on the appearance or absence of chromosomes.

________: an organized array of a cells chromosomes.

During anaphase, there are two chromatids on the ________.

A chromosome is 15% DNA, 10% RNA and 75% Protein

length, centromere, position, banding pattern, and genetic loci

an organized array of a cells chromosomes

non-sex chromosomes

X or Y chromosomes

homologous chromosomes are matched together

to use fluorescent DNA probes to target specific chromosomal locations within the nucleus, resulting in colored signals that can be detected using a fluorescent microscope

A chromosome is 15% DNA, 10% RNA and 75% Protein

Metacentric, Acrocentric, Telocentric

centromere is in the middle

centromere is slightly off center

centromere is at the top of the chromosome

Gap 1. Cells accomplish much of their growth, growing larger and making proteins and organelles needed for DNA synthesis.

The cell synthesizes a copy of the DNA in its nucleus.

Gap 2. The cell grows more as it makes more proteins and organelles, reorganizing its contents in

preparation for mitosis.

M-phase. Nuclear division (mitosis) followed by cytoplasmic division (cytokinesis)

The cytoplasmic division of a cell at the end of mitosis or meiosis, bringing about the separation into two daughter cells.

G1 + S + G2

During anaphase, there are two chromatids on the centromere. During Telophase, there is just one chromatid on the centromere.

have the same: length, centromere, position, banding pattern, and genetic loci.

an organized array of a cell’s chromosomes

non-sex chromosomes

X or Y chromosomes

homologous chromosomes are matched together

destroys spindle fibers in a cell so the view of chromosomes is unobstructed

increases the cell volume

splinters them apart by force, which reveals chromosomes