Chromatids remain attached to one another at the ____ region until ____ phase of mitosis.

TRUE or FALSE: Chromatids are separated from each other during mitosis and meiosis II.

In a diploid species that has 16 chromosomes total, how many homologous pairs are present?

How does the volume of DNA in cells at the completion of meiosis compare with the volume of DNA in cells that have replicated their DNA and are just about to begin meiosis?

During which phase of mitosis do the chromatids become chromosomes?

TRUE or FALSE: In meiosis I and mitosis, a cell divides to produce two daughter cells that are genetically different.

The DNA content of a group of cells was weighed immediately following mitosis and was found to have an average of 8 picograms of DNA per nucleus. How many picograms would be found at the end of S?

TRUE or FALSE: After Telophase I of meiosis, the chromosomal makeup of each daughter cell is haploid, and the chromosomes are each composed of a single chromatid

TRUE or FALSE: In sexual reproduction, individuals transmit 50% of their genes to each of their offspring.

A plant-derived protein known as colchicine can be used to poison cells by blocking the formation of the spindle. Which of the following would result if cochicine is added to a sample of cells in G2?

If there are 20 chromatids in a cell, how many centromeres are there?

TRUE or FALSE: Independent assortment of chromosomes occurs during Meiosis I.

TRUE or FALSE: At sexual maturity, ovaries and testes produce diploid gametes (egg and sperm, respectively) by meiosis.

If a cell has completed the first meiotic division and is just beginning meiosis II, what volume of DNA does the cell contain compared to the parent cell?

At which phase are centrioles beginning to move apart in animal cells?

If cells in the process of dividing are subjected to cochicine, a drug that interferes with the formation of the spindle apparatus, at which stage will mitosis be arrested (stopped)?

TRUE or FALSE: After Telophase I of meiosis, the chromosomal makeup of each daughter cell is haploid, and the chromosomes are each composed of two chromatids.

All tetrads align at the cell's center during the phase of ____ in mitosis.

Why do neurons and some other specialized cells divide infrequently?

Starting with a fertilized egg (zygote), a series of five cell divisions would produce an early embryo with how many cells?

If there are 20 centromeres in a cell at anaphase, how many chromosomes are there in each daughter cell following cytokinesis?

TRUE or FALSE: A tetrad includes four sets of sister chromatids.

TRUE or FALSE: In asexual reproduction, offspring are produced by fertilization without meiosis.

A groove in the plasma membrane between daughter nuclei is called the ____.

Measurements of the amount of DNA per nucleus were taken on a large number of cells from a growing fungus. The measured DNA levels ranged from 3-6 picograms per nucleus. In which stage of the cell cycle did the nucleus contain 6 picograms of DNA?