Campbell Biology: Concepts & Connections (8th Edition)
Campbell Biology: Concepts & Connections (8th Edition)
8th Edition
ISBN: 9780321885326
Author: Jane B. Reece, Martha R. Taylor, Eric J. Simon, Jean L. Dickey, Kelly A. Hogan
Publisher: PEARSON
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Chapter 8, Problem 21TYK

A mule is the offspring of a horse and a donkey. A donkey sperm contains 31 chromosomes and a horse egg cell contains 32 chromosomes, so the zygote contains a total of 63 chromosomes. The zygote develops normally. The combined set of chromosomes is not a problem in mitosis, and the mule combines some of the best characteristics of horses and donkeys. However, a mule is sterile; meiosis cannot occur normally in its testes (or ovaries). Explain why mitosis is normal in cells containing both horse and donkey chromosomes but the mixed set of chromosomes interferes with meiosis.

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Which of the statements is FALSE? Somatic cells are diploid in diploid organisms. Gametes are produced from meiosis by germline cells. Somatic cells are capable of both mitosis and meiosis. Somatic cells and gametes from the same organism have different chromosomal complements.
Mitosis happens throughout the male life cycle however, meiosis takes place only for a limited period of his life cycle. Select one: True False In a human body, kidney cells have a different DNA from the one present in the lung cells, because type does a different function. Select one: True False Mitochondria in cells of plant seeds break down starch to produce energy in the form of ATP Select one: True False When a red blood cell (RBC) is placed in distilled water it will shrink Select one: True False
Oogenesis is the process of female gamete (ovum or egg) production in animals. Spermatogenesis is the process of male gamete (sperm) production in animals. Although both processes produce gamete(s), there are distinct similarities and differences between the two.    Compare and contrast oogenesis to spermatogenesis by drawing a diagram showing the two processes. In your hand-drawn diagrams, be sure to include when the processes of mitosis, meiosis I and meiosis II are occurring identify each germ cell structure and its ploidy highlight 4 differences between the two processes
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