Chapter 6A Meiosis and the Sexual Life Cycles

A mature gamete is known as a

• germ cell

• gene

• somatic cell

• zygote

Each of the following are characteristics of diploid cells except

• they are body cells

• they have two copies of every chromosome

• they have 2n as their symbol

• they have 22 autosomes and 1 sex chromosome

Which of the following cells does not have a haploid number of chromosomes?

• sperm cells

• erythrocyte

• egg cell

• spore

Each of the following statements is true regarding meiosis except

• they produce genetically identical cells

• they result in haploid cells

• it takes place at certain times in an organism's life cycle

• it is involved in sexual reproduction

Which of the following is not true regarding meiosis I?

• It occurs after DNA has been replicated.

• Crossing over takes place in anaphase I.

• It divides homologous chromosomes in four phases.

• Homologous chromosomes separate from each other during anaphase I.

Each of the following statements is true regarding meiosis II except

• division of sister chromatids

• crossing over occurs in prophase II

• DNA is not replicated

• four genetically different cells are made after cytokinesis

Gametogenesis that results in the production of egg cells is known as

• spermatogenesis

• binary fission

• parthenogenesis

• oogenesis

How many sperm cells are made at the end of spermatogenesis?

• 1

• 2

• 3

• 4

An egg cell contributes each of the following except

• DNA

• cytoplasm

• organelles

• sucrose

Which of the following laws of Mendel results in chromosomes separating independently of one another during gamete formation?

• Law of Segregation

• Law of Independent Assortment

• Law of Dominance

• Law of Relativity