DETERMINE THE SYNDROME a. Formed when a normal egg is fertilized by a sperm carrying both sex chromosome b. Formed when an abnormal egg without sex chromosome is fertilized by a normal X-carrying sperm cell b. Formed when a normal X-carrying sperm cell fertilized an

DETERMINE THE SYNDROME a. Formed when a normal egg is fertilized by a sperm carrying both sex chromosome b. Formed when an abnormal egg without sex chromosome is fertilized by a normal X-carrying sperm cell b. Formed when a normal X-carrying sperm cell fertilized an

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Description: DETERMINE THE SYNDROMEa. Formed when a normal egg is fertilized by a sperm carrying both sex chromosome b. Formed when an abnormal egg without sex chromosome is fertilized by a normal X-carrying sperm cell b. Formed when a normal X-carrying sperm cel

Human Biology (MindTap Course List)

11th Edition

ISBN:9781305112100

Author:Cecie Starr, Beverly McMillan

Publisher:Cecie Starr, Beverly McMillan

Chapter20: Chromosomes And Human Genetics

Section: Chapter Questions

Problem 10SQ

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which genetic disorder matches below descriptions. extra 21st chromosome attaches to chromosome 14. Affected individual exhibit epichanthic folds of eyelids, simian crease in palms, and mental retardation. trisomy 18 Affected individuas have an elongated skull, hair lip, cleft palate, rocker-bottom feet. Life expectancy is about 10 weeks. trisomy 21. Affected indiviudals exhibit epicanthic folds of eyelids, protruding tongue, small, low set ears, and retardation.
3 View the diagram of fertilization with the sex chromosomes shown below. Identify the disorder that an offspring would have if an egg cell that has an extra copy of the X chromosome were to be fertilized by a sperm cell. Determine the gender of the zygote. Describe the effects of the resulting condition. X 11x X Egg cell X X MI Y Zygote Y Sperm Cell
(1) What is the karyotype for men who have an extra Y chromosome? Discuss all the ways you can test for this abnormality. (2) What is the karyotype for women who have an extra X-chromosome? Discuss all the ways you can test for this abnormality.
а. Indicate where independent assortment takes place. b. Label when the cell(s) are diploid or haploid. с. Indicate the number of chromosomes in each cell. d. Label Interphase, Prophase I, Metaphase I, Anaphase I, Telophase I, Meiosis I, and Meiosis II.
A. Give 7 genes located on X chromosomes and provide 2 protein products of each gene. B. Give 4 genes located on Y chromosomes and provide 2 protein products of each gene.
What are chromosomal Defects. List and Explain any 5 of them.
What is the karyotype for women who have an extra X-chromosome? Discuss all the ways you can test for this abnormality.
D. Sex-linked In humans, hemophilia is a sex-linked trait. Females can be normal, carriers, or have the disease. Males will either have the disease or not (but they won't ever be carriers). 1. Show the cross of a man who has hemophilia with a normal woman. What is the probability that their children will have the disease? H H = female, normal H h X X = female, carrier h xxn XHY X" Y 2. A woman who is a carrier marries a hemophiliac man. Show the cross. What is the probability that their children will have hemophilia? What sex will a child in the family with hemophilia be? 3. A woman who has hemophilia marries a normal man. How many of their children will have hemophilia, and what is their sex? = female, hemophiliac = male, normal = male, hemophiliac
Fill in the cells below showing the NORMAL process of meiosis of the male's sex chromosomes (XY – the X and Y are representing the entire chromosome, and remember X and Y act like a homologous pair). DO NOT show crossing over. prior to meiosis 44 +XY What are the possible normal gametes produce after meiosis division? Identify the possible sex of the offspring if these normal sperm cells are fertilized by the egg cell.
a. If cell division during gametogenesis is non-meiotic, what is its consequence to the future generations of diploid organisms? b. How does non-disjunction in meiosis lead to numerical chromosomal aberration?
What is the karyotype for men who have an extra Y chromosome? Discuss all the ways you can test for this abnormality.
14. Label the phases of Meiosis and annotate any important events or features. 9--0-