Exam 3: Cell Division and Chromosome Heredity

In meiosis,interphase is followed by two successive rounds of cell division,meiosis I and II.Meiosis results in four haploid daughter cells because there is no ________ between these two meiotic cell divisions.

What process is used to make mature germ-line cells,or gametes?

During which stage or phase of the cell cycle does the cell replicate its chromosomes?

Synapsis initiates formation of a protein bridge called the synaptonemal complex,a tri-layer protein structure that maintains synapsis by tightly binding ________ of homologous chromosomes to one another.

Certain kinds of cells (e.g.,some cells in the eyes and bones)mature and differentiate into a state in which they have a specialized function but do not divide or progress through the cell cycle.These cells are "stuck" in which stage?

Vinblastine is a commonly used chemotherapy drug that acts by interfering with the assembly of microtubules.How does it likely target cancer cells?

Microtubules are polar and have a plus and a minus end.Which end is anchored at the centrosome?

If a trait is X-linked dominant,who would express the trait?

Which structure is responsible for chromosome movement during cell division?

During which stage or phase of the cell cycle does the cell actively transcribe and translate all the protein products necessary for normal cellular structure and function?

What dosage compensation mechanism is employed by female placental mammals?

During cell division,chromosomal material is improperly divided between the two daughter cells such that one cell receives three copies of a chromosome,and the other cell receives only one.This is likely due to a defect in which process?

The number of recombination nodules along each homologous chromosome arm correlates closely with the average number of what?

Of the trillions of cells in the human body,most are ________,the cells that form organs and tissues.