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Active Lecture Questions for
BIOLOGY, Eighth Edition
Neil Campbell & Jane Reece
Chapter 13
Meiosis and Sexual Life Cycles
Questions prepared by
Louise Paquin,
McDaniel College
Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings.
Overview
Which of the following transmits genes from one
generation of a family to another?
a) DNA
b) gametes
c) somatic cells
d) mitosis
e) nucleotides
Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings.
Chromosome Number
Privet shrubs and humans each have a diploid
number of 46 chromosomes per cell. Why are the
two species so dissimilar?
a) Privet chromosomes undergo only mitosis.
b) Privet chromosomes are shaped differently.
c) Human chromosomes have genes grouped together
differently.
d) The two species have appreciably different genes.
e) Privets do not have sex chromosomes.
Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings.
Karyotypes
Why is it more practical to prepare karyotypes by
viewing somatic diploid cells rather than haploid
gametes?
Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings.
Fertilization
Fertilization is to zygote as meiosis is to which of
the following?
a) mitosis
b) diploid
c) chromosome
d) replication
e) gamete
Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings.
Meiosis
Diploid cells may undergo either mitosis or
meiosis. Can haploid cells? Why or why not?
Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings.
Inquiry
Shugoshin is a protein that protects cohesins from
cleavage during meiosis I. What would you expect
would occur if a premeiotic cell had one normal
copy and one abnormal (nonfunctional) copy of the
shugoshin gene? Hint: Think of one form on each
member of a homologous pair.
Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings.
Independent Assortment
How and at what stage do chromosomes undergo
independent assortment?
a) meiosis I pairing of homologues
b) anaphase I separation of homologues
c) meiosis II separation of homologues
d) meiosis I metaphase alignment
e) meiosis I telophase separation
Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings.
Disjunction
What allows sister chromatids to separate in which
phase of meiosis?
a) release of cohesin along sister chromatid arms in
anaphase I
b) crossing over of chromatids in prophase I
c) release of cohesion at centromeres in anaphase I
d) release of cohesion at centromeres in anaphase II
e) crossing over of homologues in prophase I
Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings.
Variation
What are three ways in which gametes from one
individual diploid cell can be different from one
another?
Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings.
Rate and Process
Prophase I of meiosis is generally the longest phase
of meiosis. Why might this be?
Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings.
Meiotic Phases
In this cell, what phase is represented?
a) mitotic metaphase
b) meiosis I anaphase
c) meiosis I metaphase
d) meiosis II anaphase
e) meiosis II metaphase
Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings.