Exam 13: Sexual Life Cycles and Meiosis

For a species with a haploid number of 23 chromosomes, how many different combinations of maternal and paternal chromosomes are possible for the gametes based on the independent assortment of chromosomes during meiosis?

How does natural selection apply to sexual reproduction as opposed to asexual reproduction?

Which of the following results when homologous chromosomes cross over in meiosis?

Many diploid organisms produce haploid gametes for reproduction. Which of the following best describes how the diploid number of chromosomes is restored in the offspring of these organisms?

For the following question, match the key event of meiosis with the stages listed below. I. Prophase I V. Prophase II II. Metaphase I VI. Metaphase II III. Anaphase I VII. Anaphase II IV. Telophase I VIII. Telophase II Cohesins at centromeres of sister chromatids breakdown.

Which of the following phrases defines the term genome?

Multiple cells from the same species were isolated, the relative cohesion protein content for each type was determined, and the results were plotted on the graph. Refer to the graph to answer the following question. Which sample is consistent with a cell that has completed mitosis?

Which of the following explanations correctly describes a reproductive approach?

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

Which of the following processes will most likely produce a human zygote with 45 chromosomes?

Multiple cells from the same species were isolated, the relative cohesion protein content for each type was determined, and the results were plotted on the graph. Refer to the graph to answer the following question. Which sample is consistent with a cell that is entering mitosis?

Which of the following statements describes the chromosomal makeup of each daughter cell after telophase of meiosis I?

A human cell containing 22 autosomes and a Y chromosome is ________.

Cells from a diploid protist with n=1 are followed through mitosis and meiosis. The drawings in the figure below represent the chromosomes. Refer to the drawings and answer the following question(s). Which diagram represents anaphase I of meiosis?

In a human karyotype, chromosomes are arranged in 23 pairs. If one of the autosomal pairs is examined, which of the following characteristics will the two chromosomes of the pair have in common?

A cell has completed meiosis I and the first cytokinesis, and is just beginning meiosis II. Which of the following statements describes its genetic contents?

Which of the following processes occur during meiosis but not mitosis?

If we continue to follow the cell lineage from question 4, then the DNA content of a single cell at metaphase of meiosis II will be ________.

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

Meiosis II is similar to mitosis in that ________.