Mitosis & Meiosis

Eukaryotic cells spend most of their cell cycle in which phase?

• prophase

• metaphase

• telophase

• interphase

A cell that has a cell wall is undergoing cell division, and the following events are observed: the formation of a cell plate and the division of the cell into two daughter cells. What type of cell is being observed and what process(es) is it going through?

• prokaryote; telophase of mitosis

• plant cell; telophase II of meiosis

• animal cell; telophase and cytokinesis of mitosis

• plant cell; telophase and cytokinesis of mitosis

Tags

NGSS.HS-LS1-4

Two chromosomes in a nucleus that carry genes controlling the same inherited characteristics are

• homologous chromosomes.

• parallel chromosomes.

• complementary chromosomes.

• heterologous chromosomes.

Tags

NGSS.HS-LS3-2

NGSS.HS-LS3-1

Nondisjunction occurs when

• members of a chromosome pair fail to separate.

• a portion of a chromosome breaks off and is lost.

• two chromosomes fuse into one.

• an entire pair of chromosomes is lost during meiosis I.

Tags

NGSS.HS-LS3-2

Which of the following statements is false?

• Two haploid cells fuse during fertilization.

• An X chromosome is an autosome.

• Gametes are haploid cells.

• A zygote is a fertilized egg.

The process by which the cytoplasm of a eukaryotic cell divides to produce two cells is called

• telophase.

• mitosis

• binary fission.

• cytokinesis.

Tags

NGSS.HS-LS1-4

Which of the following occurs during interphase?

• cell growth and duplication of the chromosomes

• a reduction in the size of the nuclear membrane

• separation of newly formed DNA to opposite ends of the cell

• cytokinesis

During which stage of meiosis do synapsis and crossing over occur?

• prophase I

• prophase II

• interphase I

• metaphase I

Tags

NGSS.HS-LS3-2

Which of the following statements correctly describes the behavior of a tetrad during anaphase I of meiosis?

• It splits into two pairs of sister chromatids, and one pair goes to each pole of the dividing cell.

• It splits into four chromosomes, which distribute in random pairs to the two poles of the dividing cell.

• It goes intact to one pole of the dividing cell.

• It splits into two pairs of homologous, nonsister chromatids, and one pair goes to each pole of the dividing cell.

Tags

NGSS.HS-LS3-2

At a chiasma, two ________ are attached to each other.

• homologous or nonsister chromatids

• daughter cells

• nonhomologous chromosomes

• homologous or sister chromatids

Tags

NGSS.HS-LS3-2