Book Review Question Chapter 11

Question 1

If a mutation occurs so that a fungus is no longer able to produce a minus mating type, will it still be able to reproduce?

Answer 1

yes, asexually

Question 2

Meiosis usually produces ________ daughter cells.
two haploid
two diploid
four haploid
four diploid

Answer 2

four haploid

Question 3

What structure is most important in forming the tetrads?
centromere
synaptonemal complex
chiasma
kinetochore

Answer 3

synaptonemal complex

Question 4

At which stage of meiosis are sister chromatids separated from each other?
prophase I
prophase II
anaphase I
anaphase II

Answer 4

anaphase II

Question 5

At metaphase I, homologous chromosomes are connected only at what structures?
chiasmata
recombination nodules
microtubules
kinetochores

Answer 5

chiasmata

Question 6

Which of the following is not true in regard to crossover?
Spindle microtubules guide the transfer of DNA across the synaptonemal complex.
Nonsister chromatids exchange genetic material.
Chiasmata are formed.
Recombination nodules mark the crossover point.

Answer 6

Chiasmata are formed

Question 7

What phase of mitotic interphase is missing from meiotic interkinesis?
G0 phase
G1 phase
S phase
G2 phase

Answer 7

S phase

Question 8

The part of meiosis that is similar to mitosis is ________
meiosis I
anaphase I
meiosis II
interkinesis

Answer 8

meiosis II

Question 9

If a muscle cell of a typical organism has 32 chromosomes, how many chromosomes will be in a gamete of that same organism?
8
16
32
64

Answer 9

16

Question 10

Which statement best describes the genetic content of the two daughter cells in prophase II of meiosis?
haploid with one copy of each gene
haploid with two copies of each gene
diploid with two copies of each gene
diploid with four copies of each gene

Answer 10

haploid with two copies of each gene

Question 11

The pea plants used in Mendel’s genetic inheritance studies were diploid, with 14 chromosomes in somatic cells. Assuming no crossing over events occur, how many unique gametes could one pea plant produce?
28
128
196
16,384

Answer 11

128

Question 12

How do telophase I and telophase II differ during meiosis in animal cells?
Cells remain diploid at the end of telophase I, but are haploid at the end of telophase II.
Daughter cells form a cell plate to divide during telophase I, but divide by cytokinesis during telophase II.
Cells enter interphase after telophase I, but not after telophase II.
Chromosomes can remain condensed at the end of telophase I, but decondense after telophase II.

Answer 12

Chromosomes can remain condensed at the end of telophase I, but decondense after telophase II.

Question 13

What is a likely evolutionary advantage of sexual reproduction over asexual reproduction?
Sexual reproduction involves fewer steps.
There is a lower chance of using up the resources in a given environment.
Sexual reproduction results in variation in the offspring.
Sexual reproduction is more cost-effective.

Answer 13

Sexual reproduction results in variation in the offspring

Question 14

Which type of life cycle has both a haploid and diploid multicellular stage?
asexual life cycles
most animal life cycles
most fungal life cycles
alternation of generations

Answer 14

alternation of generations

Question 15

What is the ploidy of the most conspicuous form of most fungi?
diploid
haploid
alternation of generations
asexual

Answer 15

haploid

Question 16

A diploid, multicellular life-cycle stage that gives rise to haploid cells by meiosis is called a ________.
sporophyte
gametophyte
spore
gamete

Answer 16

sporophyte

Question 17

Hydras and jellyfish both live in a freshwater lake that is slowly being acidified by the runoff from a chemical plant built upstream. Which population is predicted to be better able to cope with the changing environment?
jellyfish
hydra
The populations will be equally able to cope.
Both populations will die.

Answer 17

jellyfish

Question 18

Many farmers are worried about the decreasing genetic diversity of plants associated with generations of artificial selection and inbreeding. Why is limiting random sexual reproduction of food crops concerning?
Mutations during asexual reproduction decrease plant fitness.
Consumers do not trust identical-appearing produce.
Larger portions of the plant populations are susceptible to the same diseases.
Spores are not viable in an agricultural setting.

Answer 18

Larger portions of the plant populations are susceptible to the same diseases.