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Exam 13: Meiosis and Sexual Life Cycles

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Question 21

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Which of the following statements describes a major difference between meiosis II and mitosis in a diploid animal?

A) Homologous chromosomes align on the metaphase plate in meiosis II.
B) Sister chromatids separate in mitosis, and homologous chromosomes separate in meiosis II.
C) Meiosis II occurs in a haploid cell, while mitosis occurs in diploid cells.
D) Crossing over of chromosomes takes place in meiosis II.

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Question 22

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How do cells at the completion of meiosis compare with cells that are in prophase of meiosis I?

A) The cells have half the number of chromosomes and half the amount of DNA.
B) The cells have the same number of chromosomes and half the amount of DNA.
C) The cells have half the number of chromosomes and one-fourth the amount of DNA.
D) The cells have half the amount of cytoplasm and twice the amount of DNA.

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Question 23

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The two homologs of a pair move toward opposite poles of dividing cell during

Refer to the information and figure below to answer the following questions. A certain (hypothetical) organism is diploid, has either blue or orange wings as the consequence of one of its genes on chromosome 12, and has either long or short antennae as the result of a second gene on chromosome 19, as shown in the figure. -If a female of this species has one chromosome 12 with a blue gene and another chromosome 12 with an orange gene, and has both number 19 chromosomes with short genes, which of the following combinations of genes will her eggs have?

Which of the following statements is correct regarding the human X chromosomes?

Asexual reproduction occurs during which of the following processes?

The bulldog ant has a diploid number of two chromosomes. Therefore, following meiosis, each daughter cell will have a single chromosome. In addition to mutations, how might genetic diversity be generated in this species?

Which of the following characteristics do homologous chromosomes exhibit?

Which of the following processes occurs in a plant's sexual life cycle?

Which of the following statements describes a major difference between mitosis and meiosis I in a diploid organism?

A triploid cell contains three sets of homologous chromosomes. If a cell of a diploid species that normally has 42 chromosomes per cell is triploid, this cell would be expected to have which of the following sets of chromosomes?

Refer to the drawings in the figure below of a single pair of homologous chromosomes as they might appear during various stages of either mitosis or meiosis, and answer the following question(s) . -Which diagram represents anaphase I of meiosis?

Which of the following statements is correct in comparing sexual and asexual reproduction?

Refer to the information and figure below to answer the following questions. A certain (hypothetical) organism is diploid, has either blue or orange wings as the consequence of one of its genes on chromosome 12, and has either long or short antennae as the result of a second gene on chromosome 19, as shown in the figure. -A female with a paternal set of one orange and one long gene chromosome and a maternal set comprised of one blue and one short gene chromosome would be expected to produce which of the following types of eggs after meiosis?

Which of the following statements defines a genome?

Which of the following statements is true of a species that has a chromosome number of 2n = 16?

DNA was isolated from three different cell types of the same organism, the relative DNA content for each type was determined, and the results were plotted on the graph shown in the figure below. Refer to the graph to answer the following questions. -Which sample of DNA might represent an animal cell in the G₂ phase of the cell cycle prior to meiosis?

DNA was isolated from three different cell types of the same organism, the relative DNA content for each type was determined, and the results were plotted on the graph shown in the figure below. Refer to the graph to answer the following questions. -Which sample of DNA might be from a cell that stopped the process of cell division in G₀ phase of the cell cycle prior to meiosis?

During which of the following phases of meiosis do centromeres split and sister chromatids migrate to opposite poles of the cell?

Which of the following processes occurs in meiosis but not in mitosis?