Cell Division

Which of the following best describes the genetic material a person receives from his or her father? a) 22 autosomes and an X or Y chromosome b) 22 pairs of homologous chromosomes and an X and Y chromosome c) 22 haploid cells and an X or Y chromosome d) 23 diploid cells and an X and Y chromosome

22 autosomes and an X or Y chromosome (a)

How many chromosomes are in a human gamete? a) 46 b) 44 c) 23 d) 22

23 (c)

What does an egg contribute to the embryo that a sperm does not contribute? a) germ cells b) organelles c) polar bodies d) DNA

organelles (b)

Which phrase best describes the process of meiosis? a) results in genetically identical cells b) occurs in body cells c) produces haploid gametes d) happens only in haploid cells

produces haploid gametes (c)

Which stage of mitosis happens last? a) anaphase b) prophase c) telophase d) metaphase

telophase (c)

Which statement about the process of binary fission is true? a) it does not require any duplication of DNA b) it does not take place in multicellular organisms c) it does not involve the division of cytoplasm d) it does not produce genetically identical offspring

it does not take place in multicellular organisms (b)

Which statement describes the chromosome shown in Figure 5.2? a) it's made up of two centromeres b) it's made up of two histones c) it's made up of two chromatids d) it's made up of two telomeres

it's made up of two chromatids (c)

During which of the following stages shown in Figure 5.1 does the cytoplasm of a cell divide? a) synthesis b) gap 2 c) gap 1 d) mitosis

mitosis (d)

In a single-celled organism, mitosis is used for a) development b) reproduction c) repair d) growth

reproduction (b)

A kidney cell is an example of which type of cell? a) germ cell b) haploid cell c) sex cell d) somatic cell

somatic cell (d)

Gametogenesis is the term for a) the development of polar bodies b) the production of gametes c) there fertilization of eggs d) the movement of sperm

the production of gametes (b)

Cells in a developing embryo differentiate based on a) secretions from the embryo b) their particular DNA c) symmetry in the first division d) their location in the embryo

their location in the embryo (d)

At fertilization, what happens to the sex cells? a) their nuclei fuse to form one nucleus b) they retain half of their chromosomes c) half of the cells copy their DNA twice d) one becomes an egg, and one becomes a sperm cell

their nuclei fuse to form one nucleus (a)

What happens to sister chromatids in meiosis II? a) they are divided b) they do not take part c) they remain together d) they duplicate

they are divided (a)

Which of the following is true of malignant tumors? a) they can cause tumors in other parts of the body b) they contain cells that stay clustered together c) they are easily removed through surgery d) they do not require treatment

they can cause tumors in other parts of the body (a)

Which of the following statements is true of homologous chromosomes? a) they connect to each other b) they are exact copies c) they divide during meiosis II d) they contain the same genes

they contain the same genes (d)

If a cell cannot move enough material through its membrane to survive, then the ratio of its surface area to volume is a) too large b) growing too quickly c) just the right size d) too small

too small (d)

One difference between a cancer cell and a normal cell is that a) normal cells cannot make copies of DNA b) cancer cells divide uncontrollably c) cancer cells cannot make copies of DNA d) normal cells divide uncontrollably

cancer cells divide uncontrollably (b)

Kinases and cyclins are internal factors that a) cause cancer cells to break away b) cause apoptosis c) prevent mitosis d) control the cell cycle

control the cell cycle (d)

During interphase a cell grows, duplicates organelles, and a) produces a new cell b) copies DNA c) divides the nucleus d) divides the cytoplasm

copies DNA (b)