chapter 11

Question 1

meiosis usually produces ___ daughter cells

Answer 1

four haploid

Question 2

What structure is most important in forming the tetrads?

Answer 2

synaptonemal complex

Question 3

at which stage of meiosis are sister chromatids separated from each other?

Answer 3

anaphase ll

Question 4

At metaphase I, homologous chromosomes are connected only at what structures?

Answer 4

chiasmata

Question 5

Which of the following is not true in regard to crossover?

Answer 5

chiasmata are formed

Question 6

what phase of mitotic interphase is missing from meiotic interkinesis

Answer 6

S phase

Question 7

the part of meiosis that is similar to mitosis is

Answer 7

meiosis II

Question 8

if a muscle cell of a typical organism has 32 chromosomes, how many chromosomes will be in a gamete of that same organism

Answer 8

16

Question 9

which statement best describes the genetic content of the two daughter cells in prophase II of meiosis

Answer 9

haploid with two copies of each gene

Question 10

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?

Answer 10

16,384

Question 11

how do telephone I and telophase II differ during meiosis in animal cells?

Answer 11

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

Question 12

what is a likely evolutionary advantage of sexual reproduction over asexual reproduction?

Answer 12

sexual reproduction results in a variation in the offspring

Question 13

which type of life cycle has both a haploid and diploid multicellular stage

Answer 13

alternation of generations

Question 14

what is the policy of the mist conspicuous form of most fungi

Answer 14

haploid

Question 15

a diploid, multicellular life-cycle stage that gives rise to haploid cells by meiosis is called a ___

Answer 15

sporophyte

Question 16

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?

Answer 16

jellyfish

Question 17

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?

Answer 17

larger portions of the plant populations are susceptible to the same diseases