Place the following events of sexual reproduction in the correct order by numbering them from 1 to 5. a. Separation of homologous chromosomes b. Separation of sister chromatids c. Mitosis within the zygote, leading to a multicellular organism d. Cytokinesis, leading to four haploid daughter cells e. Fusion of two gametes

Place the following events of sexual reproduction in the correct order by numbering them from 1 to 5. a. Separation of homologous chromosomes b. Separation of sister chromatids c. Mitosis within the zygote, leading to a multicellular organism d. Cytokinesis, leading to four haploid daughter cells e. Fusion of two gametes

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter7: The Cellular Basis Of Inheritance

Section: Chapter Questions

Problem 5RQ: Meiosis produces daughter cells. a. two haploid b. two diploid c. four haploid d. four diploid

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Which of the following mechanisms contributes to genetic variation through sexual reproduction via the random orientation of pairs of homologous chromosomes at metaphase of meiosis I? A. crossing over B. random fertilization C. independent assortment of chromosomes D. cytokinesis
For the following events, specify whether they occur during mitosis, meiosis I, or meiosis II:A. Separation of conjoined chromatids within a pair of sisterchromatidsB. Pairing of homologous chromosomesC. Alignment of chromatids along the metaphase plateD. Attachment of sister chromatids to both poles
The haploid genome of Toxoplasma gondii has 14 chromosomes. When an oocyst changes into a sporozoite, its nucleus contains Select one: a. 7 chromosomes b. 42 chromosomes c. 28 chromosomes d. 14 chromosomes
Which statement about meiosis (in humans) is FALSE? Select one: a. It reduces the amount of genetic material (chromosomes) by half b. It is part of the process of sexual reproduction c. The cells it produces are identical to each other d. It produces haploid gametes e. It occurs only in germline cells of the reproductive organs
In what phase of meiosis would you find no chromatids? Group of answer choices A. telophase 2 B. metaphase 1 C. anaphase 1 D. metaphase 2 E. prophase 1
Which of the following stages of meiosis II involves separation and movement of the sister chromatids toward the spindle poles? A. Telophase II B. Metaphase II C. Anaphase II D. Prophase II
The number of chromosomes present in eurkaryotic cells a. is consistent during the life cycle b. is haploid among sexually reproducing forms and diploid if the reproduce sexually c. is double by fertilization and cut in half by meiosis d. is dependent on the age of the tissue
The amount of DNA in a diploid organism somatic cell prior to DNA replication is the same as the amount of DNA in one of its: a. germ cells at metaphase of meiosis I b. germ cells at prophase of meiosis I c. germ cells that have completed meiosis I, but have not yet started meiosis II d. germ cells that have completed meiosis II (mature gametes)
Which of the following can occur by the process of meiosis but not mitosis? A. Haploid cells fuse to form diploid cells B. Diploid cells form haploid cells C. A diploid cell combines with a haploid cell D. Haploid cells multiply into more haploid cells
Cells that result from meiosis are: a. Diploid b. Haploid c. Zygotic d. Triploid
Which of the following statements is TRUE of interkinesis? It is relatively brief interphase between telophase I and prophase II. Chromosomes duplicate during interkinesis DNA undergoes semiconservative replication during this interphase. In all species, chromosomes usually decondensed during this time The following are haploid cells, EXCEPT: A. Spermatids and spermatozoa C. Ovum and second polar body B. Primary oocytes and primary spermatocytes D. Secondary oocytes and first polar body Which of the following statements is INCORRECT? By six months after conception, fetal ovaries contain about half a million primary oocytes arrested in the diplotene stage. At ovulation, a released primary oocyte completes meiosis I and proceeds as far as metaphase II. Fertilization quickly completes meiosis II. Only two of the three products of a single meiosis serve as the female gametes.
Why is parthenogenesis in bees considered to be a form of asexual reproduction? Select one: a. The male drone is made from a haploid egg. Fertilization is not part of the process to make a male drone. b. The formation of the original haploid cell was achieved using binary fission. c. Although genetic material is transferred from one cell to another using conjugation, the resulting cells will be identical to each other. d. The haploid male bees were made through the process of meiosis, so they are identical to the parent egg cell.