Human Heredity: Principles and Issues (MindTap Course List)
11th Edition
ISBN: 9781305251052
Author: Michael Cummings
Publisher: Cengage Learning
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Chapter 7, Problem 1QP
Summary Introduction
To determine: The number of chromosomes present in a human secondary oocyte as it leaves the ovary during ovulation.
Introduction: Humans reproduce by sexual reproduction where a male gamete called sperm, fuses with a female gamete called oocyte to produce a zygote. Gonads are the organs where the male and the female gametes are produced. The male gametes are produced with the help of male sex hormones called androgens and the female gametes are produced with the help of female sex hormones called estrogens. The process of production of zygote is referred to as fertilization.
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Dogs have 78 chromosomes in their somatic cells. How many chromosomes are in their gametes?
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How many sex chromosomes are in a humans ovum
Chapter 7 Solutions
Human Heredity: Principles and Issues (MindTap Course List)
Ch. 7.6 - Prob. 1EGCh. 7.6 - Prob. 2EGCh. 7 - As outlined in this chapter, sex can be defined at...Ch. 7 - As outlined in this chapter, sex can be defined at...Ch. 7 - Prob. 1QPCh. 7 - The Human Reproductive System Discuss and compare...Ch. 7 - Prob. 3QPCh. 7 - A Survey of Human Development from Fertilization...Ch. 7 - Prob. 5QPCh. 7 - Prob. 6QP
Ch. 7 - Prob. 7QPCh. 7 - How Is Sex Determined? The absence of a Y...Ch. 7 - Prob. 9QPCh. 7 - Mutations Can Uncouple Chromosomal Sex from...Ch. 7 - Prob. 11QPCh. 7 - Mutations Can Uncouple chromosomal Sex from...Ch. 7 - Prob. 13QPCh. 7 - Sex-Influenced and Sex-Limited Traits What method...Ch. 7 - Prob. 15QPCh. 7 - Prob. 16QPCh. 7 - Equalizing the Expression of X Chromosome Genes in...Ch. 7 - Equalizing the Expression of X Chromosome Genes in...Ch. 7 - Equalizing the Expression of X Chromosome Genes in...
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- The Human Reproductive System Discuss and compare the products of meiosis in human females and males. How many functional gametes are produced from the daughter cells in each sex?arrow_forwardSUBJECT: GENETICS HUMAN SEX CHROMOSOME Distinguish male from female human beings. (Based on sex chromosome and compare them based on genetic characterictics of male and female)arrow_forwardDogs have diploid number of 78 chromosomes. How many chromosomes do their gametes have?arrow_forward
- Most cells in a sexually reproducing organism have two sets of chromosomes. Explain this observation and describe its significance to meiosis.arrow_forwardA diploid body (somatic) cell from a fruit fly contains eight chromosomes. This means that __________ different combinations of chromosomes are possible in its gametes.arrow_forwardIf human somatic cells have 46 chromosomes, how many chromosomes do human gametes have?arrow_forward
- normal somatic cells of an organism have 100 chromosomes. how many chromosomes will be present in the first polar body of that organism during gamete formationarrow_forwardMeiosis ensures the even distribution of chromosomes to the daughter cells. Why does meiosis can result in uneven distribution of chromosomes to the daughter cells?arrow_forwardDrosophila melanogaster, the common fruit fly, has 4 chromosomes in each of its gametes. How many chromosomes are in each somatic cell?arrow_forward
- A human cell containing 22 autosomes anda Y chromosome is(A) a sperm.(B) an egg.(C) a zygote.(D) a somatic cell of a malearrow_forwardAdams maternal and paternal chromosomes have alternate forms of a gene that influences whether a person is right-handed or left-handed. One form says right and its partner says left. Visualize one of Adams spermatogonia, in which chromosomes are being duplicated prior to meiosis. Visualize what happens to the chromosomes during anaphase I and II. (It might help to use toothpicks as models of the sister chromatids of each chromosome.) What fraction of Adam's sperm will carry the gene for right-handedness? For left-handedness?arrow_forwardHuman haploid gametes (sperm and eggs) contain: a. 46 chromosomes, 46 chromatids b. 46 chromosomes, 23 chromatids c. 23 chromosomes, 46 chromatids d. 23 chromosomes, 23 chromatidsarrow_forward
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