Chapter 8 Review 1: Question Preview (ID: 23089)

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Each offspring cell that is produced by mitosis has half as many chromosomes as the original cell had.
a) True
b) False

Chromatids form while DNA copies itself before cell division.
a) True
b) False

What structure not found in animal cells forms along the midline of a dividing plant cell?
a) cleavage furrow
b) chloroplast
c) cell plate
d) kinetochore

Crossing-over results in genetic recombination by
a) reducing the original cell's chromosome number by half
b) randomly separating the maternal and paternal chromosomes
c) mixing half the maternal chromosomes with half the paternal chromosomes
d) permitting the exchange of genetic material between maternal and paternal chromosomes

Each offspring cell produced by binary fission contains
a) half the chromosomes of the original cell
b) twice as many chromosomes as the orignial cell had
c) an identical copy of the original cell's chromosome
d) an independent assortment of the original cell's chromosomes

Spermatogenesis results in
a) four haploid cells
b) four diploid cells
c) one haploid cell and three polar bodies
d) two sperm cells and two polar bodies

Histones are proteins that
a) are found only in prokaryotic cells
b) aid in the packing of DNA in eukaryotic cells
c) aid in controlling the activity of regions of DNA
d) All of the above

Which of the following events occurs during synapsis?
a) replication of the DNA
b) appearance of spindle fibers
c) division of the cytoplasm
d) pairing of homologues

During mitosis and meiosis, kinetochore fibers are thought to
a) control cytokinesis
b) make centromeres
c) move chromosomes
d) join chromatids

During which phase of meiosis do tetrads form?
a) prophase
b) telophase I
c) metaphase II
d) anaphase II

The division of the cytoplasm of a eukaryotic cell is called
a) mitosis
b) binary fission
c) cytokinesis
d) cytoplasmic streaming

If an organism has 12 chromosomes in each body cell, how many chromosomes would you expect to find in the organism's gametes?
a) 4
b) 6
c) 10
d) 12

The S phase is
a) the period during which DNA is copied
b) the first phase of interphase
c) the first phase of mitosis
d) the production of offspring from one parent

The __________________ equally divides an animal cell into two offspring cells.
a) G1 Phase
b) S phase
c) mitotic spindle
d) cleavage furrow

Anaphase is
a) the first stage of mitosis
b) the period in which DNA is copied
c) the phase of mitosis during which chromosomes move to opposite poles
d) the time between cell divisions

How many of the 46 chromosomes are sex chromosomes?
a) 44
b) 2
c) 4
d) 42

The production of offspring from one parent is
a) sexual reproduction
b) asexual reproduction
c) the union of gametes

A mitotic spindle is present in both types of cells, eukaryotic and prokaryotic cells, during cell division.
a) True
b) False

Tetrads line up along the equator of the dividing cell during
a) metaphase of mitosis
b) metaphase of meiosis I
c) metaphase of meiosis II
d) anaphase of meiosis II

The female sex cell/gamete is the __________ and the female sex chromosomes are ________.
a) egg; XY
b) egg; XX
c) sperm; XY
d) ovary; XX

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