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Biology 2e

Review Questions

Biology 2eReview Questions


Meiosis usually produces ________ daughter cells.

  1. two haploid
  2. two diploid
  3. four haploid
  4. four diploid

What structure is most important in forming the tetrads?

  1. centromere
  2. synaptonemal complex
  3. chiasma
  4. kinetochore

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

  1. prophase I
  2. prophase II
  3. anaphase I
  4. anaphase II

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

  1. chiasmata
  2. recombination nodules
  3. microtubules
  4. kinetochores

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

  1. Spindle microtubules guide the transfer of DNA across the synaptonemal complex.
  2. Nonsister chromatids exchange genetic material.
  3. Chiasmata are formed.
  4. Recombination nodules mark the crossover point.

What phase of mitotic interphase is missing from meiotic interkinesis?

  1. G0 phase
  2. G1 phase
  3. S phase
  4. G2 phase

The part of meiosis that is similar to mitosis is ________.

  1. meiosis I
  2. anaphase I
  3. meiosis II
  4. interkinesis

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

  1. 8
  2. 16
  3. 32
  4. 64

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

  1. haploid with one copy of each gene
  2. haploid with two copies of each gene
  3. diploid with two copies of each gene
  4. diploid with four copies of each gene

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?

  1. 28
  2. 128
  3. 196
  4. 16,384

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

  1. Cells remain diploid at the end of telophase I, but are haploid at the end of telophase II.
  2. Daughter cells form a cell plate to divide during telophase I, but divide by cytokinesis during telophase II.
  3. Cells enter interphase after telophase I, but not after telophase II.
  4. Chromosomes can remain condensed at the end of telophase I, but decondense after telophase II.

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

  1. Sexual reproduction involves fewer steps.
  2. There is a lower chance of using up the resources in a given environment.
  3. Sexual reproduction results in variation in the offspring.
  4. Sexual reproduction is more cost-effective.

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

  1. asexual life cycles
  2. most animal life cycles
  3. most fungal life cycles
  4. alternation of generations

What is the ploidy of the most conspicuous form of most fungi?

  1. diploid
  2. haploid
  3. alternation of generations
  4. asexual

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

  1. sporophyte
  2. gametophyte
  3. spore
  4. gamete

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?

  1. jellyfish
  2. hydra
  3. The populations will be equally able to cope.
  4. Both populations will die.

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?

  1. Mutations during asexual reproduction decrease plant fitness.
  2. Consumers do not trust identical-appearing produce.
  3. Larger portions of the plant populations are susceptible to the same diseases.
  4. Spores are not viable in an agricultural setting.
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