AP Biology Unit 5

Crossing over occurs during prophase of mitosis.

• true

• false

Crossing over occurs during prophase of mitosis.

• true

• false

Which of the following is true of a species that has a chromosome number of 2n = 16?

• The species is diploid with 32 chromosomes per cell

• The species has 16 sets of chromosomes per cell.

• Each diploid cell has eight homologous pairs

• A gamete from this species has four chromosomes

Homologous chromosomes _____.

• are identical

• carry information for the same traits

• carry the same alleles

• align on the metaphase plate in meiosis II

The human X and Y chromosomes _____.

• are both present in every somatic cell of males and females

• are the same size and have the same number of genes

• include genes that determine an individual's sex

• are called autosomes

The karyotype shows the sex of this person is _____.

• male

• female

Tags

NGSS.HS-LS3-1

Which of the following happens at the conclusion of meiosis I?

• Homologous chromosomes of a pair are separated from each other.

• Sister chromatids are separated.

• Four daughter cells are formed.

• Daughter cells are genetically identical

Sister chromatids separate from each other during _____.

• meiosis I only

• meiosis II only

• mitosis and meiosis I

• mitosis and meiosis II

Which of the following occurs in meiosis but not in mitosis?

• chromosome replication

• synapsis of chromosomes

• alignment of chromosomes at the equator

• condensation of chromosomes

Which stage is being shown?

• metaphase of mitosis

• metaphase 1 of meiosis

• metaphase 2 of meiosis

Tags

NGSS.HS-LS1-4