1. If a drosophila contains diploid chromosomes 2n=8, how many chromosomes are there in n? A. 2 B. 4 C. 6 D. 8 B. The process of spermatogenesis where the spermatids undergo morphological changes to assumed the structure of the spermatozoa is called? These changes include: A. Spermatocytogenesis; Heads are larger and tail is absent. B. Spermiogenesis; Acrosome is added to the head cap, the tail is present C. Spermiation; The sperm cells are ready for "swimming" towards the egg D. Spermatogenesis; Heads are bulging and the tail is present

1. If a drosophila contains diploid chromosomes 2n=8, how many chromosomes are there in n? A. 2 B. 4 C. 6 D. 8 B. The process of spermatogenesis where the spermatids undergo morphological changes to assumed the structure of the spermatozoa is called? These changes include: A. Spermatocytogenesis; Heads are larger and tail is absent. B. Spermiogenesis; Acrosome is added to the head cap, the tail is present C. Spermiation; The sperm cells are ready for "swimming" towards the egg D. Spermatogenesis; Heads are bulging and the tail is present

Biology Today and Tomorrow without Physiology (MindTap Course List)

5th Edition

ISBN:9781305117396

Author:Cecie Starr, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Christine Evers, Lisa Starr

Chapter8: How Cells Reproduce

Section: Chapter Questions

Problem 4CT

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2) A. Explain how polyribosomes form. B. Why might you expect the insertion of 3 DNA base pairs to be less disruptive than th deletion of a single base pair? C. Compare and contrast mitosis and meiosis with respect to their genetic outcomes? D. What are the possible consequences of non-disjunction during cell division? E. How does meiosis increase genetic diversity in populations?
a. What type of cell division mitosis, meiosis I or meiosis II is shown in this figure? b. What is the diploid number of this organism? c. Provide labels for (i) and (ii)
Normal somatic cells of horses have 64 chromosomes (2 n = 64). How many chromosomes and DNA molecules will be present in the following types of horse cells? Number of DNA molecules Number of Cell type chromosomes a. Spermatogonium b. First polar body. c. Primary oocyte d. Secondary spermatocyte [© Dozornaya/iStock Photo.]
Humans have 46 chromosomes in each somatic cell.a. How many chromosomes does a child receive fromits father?b. How many autosomes and how many sex chromosomes are present in each somatic cell?c. How many chromosomes are present in a humanovum?d. How many sex chromosomes are present in ahuman ovum?
a. What phase of meiosis is this cell undergoing? b. Identify the 3 things that are incorrect in terms of this cells structure and organization? c. Would this cell produce viable gametes? Why or why not.
Normal somatic cells of horses have 64 chromosomes (2 n = 64). How many chromosomes and DNA molecules will be present in the following types of horse cells? Number of Number of DNA Cell type chromosomes molecules a. Spermatogonium b. First polar body c. Primary oocyte d. Secondary spermatocyte
In a description of meiosis the terms ‘chromosome’ and ‘chromatid’ may be used. Distinguish between these two terms. There are 56 chromosomes in a mature elephant cell. If one of the elephants cells responsible for gamete production undergoes meiosis, how many chromosomes would be present in each cell after meiosis I, and then after meiosis II. Explain your reasoning.
If a diploid organism has 14 chromosomes (2n=14) a. How many chromosomes will its gametes have? b. After meiosis I during gamete formation, how many chromosomes are in each daughter cell? c. After meiosis I during gamete formation, how many chromatids are in each daughter cell?
Which of the following statements are correct? Explain your answers. A. The egg and sperm cells of animals contain haploid genomes. B. During meiosis, chromosomes are allocated so that each germ cell obtains one and only one copy of each of the different chromosomes. C. Mutations that arise during meiosis are not transmitted to the next generation.
5.)Gametogenesis, or the formation of gametes, occurs when diploid germ cells undergo meiosis. In fruit flies (Drosophila melanogaster), diploid germ cells contain eight chromosomes. Which of the following correctly describes the number of chromosomes in the daughter cells produced during gametogenesis in fruit flies? The daughter cells each contain four chromosomes after meiosis I and four chromosomes after meiosis II. The daughter cells each contain eight chromosomes after meiosis I and eight chromosomes after meiosis II. The daughter cells each contain eight chromosomes after meiosis I and four chromosomes after meiosis II. The daughter cells each contain four chromosomes after meiosis I and two chromosomes after meiosis II.
What is the significant events of the stages in Meiosis? (explain in 2-3 sentences)a. Prophase Ib. Metaphase Ic. Anaphase Id. Telophase Ie. Prophase IIf. Metaphase IIg. Anaphase IIh. Telophase II
1)Discusses why Meiosis I is referred to as reduction division and why Meiosis II is essentially like Mitosis. 2)Discusses where problems are likely to occur in Meiosis and what these problems could lead to.