{"id":170365,"date":"2024-11-19T19:39:06","date_gmt":"2024-11-19T19:39:06","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=170365"},"modified":"2024-11-19T19:39:09","modified_gmt":"2024-11-19T19:39:09","slug":"select-all-the-possible-results-of-nondisjunction-in-sex-chromosomes","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2024\/11\/19\/select-all-the-possible-results-of-nondisjunction-in-sex-chromosomes\/","title":{"rendered":"Select all the possible results of nondisjunction in sex chromosomes"},"content":{"rendered":"\n

Select all the possible results of nondisjunction in sex chromosomes.
XXX zygote
\u2610YYY zygote
gamete contains an extra X
gamete is missing an autosome
gamete contains an extra Y
gamete is missing a sex chromosome<\/p>\n\n\n\n

The Correct Answer and Explanation is :<\/strong><\/mark><\/p>\n\n\n\n

The correct answers for the possible results of nondisjunction in sex chromosomes are:<\/p>\n\n\n\n

    \n
  1. XXX zygote<\/strong><\/li>\n\n\n\n
  2. gamete contains an extra X<\/strong><\/li>\n\n\n\n
  3. gamete contains an extra Y<\/strong><\/li>\n\n\n\n
  4. gamete is missing a sex chromosome<\/strong><\/li>\n<\/ol>\n\n\n\n

    Explanation of Nondisjunction in Sex Chromosomes:<\/h3>\n\n\n\n

    Nondisjunction is the failure of chromosomes to separate properly during cell division, either in meiosis I or meiosis II. This can result in gametes with an abnormal number of chromosomes. In the context of sex chromosomes, nondisjunction can lead to variations in the number of X or Y chromosomes in the gametes.<\/p>\n\n\n\n

      \n
    1. XXX zygote<\/strong>: This occurs when a female gamete (with one X chromosome) fuses with a male gamete (with one X chromosome), but the female gamete has an extra X chromosome due to nondisjunction. This results in a zygote with three X chromosomes, commonly called Triple X Syndrome<\/strong> (or 47,XXX). This condition typically has mild symptoms, with many women having normal development.<\/li>\n\n\n\n
    2. Gamete contains an extra X<\/strong>: Nondisjunction in a female during meiosis I or meiosis II could lead to a gamete containing two X chromosomes instead of one. When this gamete fuses with a normal male gamete (with one X or one Y), the result may be an XXX or XXY zygote.<\/li>\n\n\n\n
    3. Gamete contains an extra Y<\/strong>: This can occur if nondisjunction happens in a male during meiosis. If a gamete ends up with two Y chromosomes (instead of one), and it fuses with a normal female gamete (with one X chromosome), the resulting zygote will have two Y chromosomes and one X, leading to a XYY zygote<\/strong>, a condition called Jacob’s Syndrome<\/strong>. Individuals with this syndrome may have a range of symptoms, but many are unaffected.<\/li>\n\n\n\n
    4. Gamete is missing a sex chromosome<\/strong>: Nondisjunction can also result in gametes missing a sex chromosome. If this occurs in a female during meiosis I, a gamete may lack one of the X chromosomes. If this gamete fuses with a normal male gamete (containing an X or a Y), the result could be a Turner Syndrome<\/strong> zygote (45,X), where the individual has only one X chromosome and no second sex chromosome.<\/li>\n<\/ol>\n\n\n\n

      These errors in chromosome number are generally associated with specific syndromes, each with its own set of characteristics, although many individuals can have normal or near-normal development despite such chromosomal abnormalities.<\/p>\n","protected":false},"excerpt":{"rendered":"

      Select all the possible results of nondisjunction in sex chromosomes.XXX zygote\u2610YYY zygotegamete contains an extra Xgamete is missing an autosomegamete contains an extra Ygamete is missing a sex chromosome The Correct Answer and Explanation is : The correct answers for the possible results of nondisjunction in sex chromosomes are: Explanation of Nondisjunction in Sex Chromosomes: […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[25],"tags":[],"class_list":["post-170365","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/170365","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/comments?post=170365"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/170365\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=170365"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=170365"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=170365"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}