{"id":208817,"date":"2025-04-28T06:38:28","date_gmt":"2025-04-28T06:38:28","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=208817"},"modified":"2025-04-28T06:38:30","modified_gmt":"2025-04-28T06:38:30","slug":"in-the-hardy-weinberg-formula","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/04\/28\/in-the-hardy-weinberg-formula\/","title":{"rendered":"In the Hardy-Weinberg formula"},"content":{"rendered":"\n<p>In the Hardy-Weinberg formula, what does p\u00b2 represent?<br>A frequency of heterozygotes<br>B frequency of the recessive allele<br>C frequency of the homozygous dominants<br>D frequency of the dominant allele<\/p>\n\n\n\n<p><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-6-color\"><strong>The correct answer and explanation is :<\/strong><\/mark><\/p>\n\n\n\n<p>The correct answer is <strong>C: frequency of the homozygous dominants.<\/strong><\/p>\n\n\n\n<p>The Hardy-Weinberg formula is a principle in population genetics used to calculate the genetic variation in a population at equilibrium. It is represented by the equation:<\/p>\n\n\n\n<p>[<br>p^2 + 2pq + q^2 = 1<br>]<\/p>\n\n\n\n<p>Where:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>( p ) is the frequency of the dominant allele in the population.<\/li>\n\n\n\n<li>( q ) is the frequency of the recessive allele in the population.<\/li>\n\n\n\n<li>( p^2 ) represents the frequency of individuals who are <strong>homozygous dominant<\/strong> (having two dominant alleles, ( AA )).<\/li>\n\n\n\n<li>( 2pq ) represents the frequency of individuals who are <strong>heterozygous<\/strong> (having one dominant allele and one recessive allele, ( Aa )).<\/li>\n\n\n\n<li>( q^2 ) represents the frequency of individuals who are <strong>homozygous recessive<\/strong> (having two recessive alleles, ( aa )).<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Explanation:<\/h3>\n\n\n\n<p>To understand what ( p^2 ) represents, let&#8217;s break it down:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Homozygous Dominant (AA):<\/strong> These individuals have two copies of the dominant allele. In the Hardy-Weinberg equation, the probability that an individual inherits two dominant alleles (one from each parent) is ( p \\times p ), or ( p^2 ). This is because the frequency of the dominant allele in the population is represented by ( p ), and since both alleles are dominant, the probability of both parents passing on the dominant allele to their offspring is ( p \\times p = p^2 ). Hence, ( p^2 ) represents the frequency of homozygous dominant individuals in the population.<\/li>\n\n\n\n<li><strong>Heterozygous (Aa):<\/strong> The probability of an individual being heterozygous (having one dominant allele and one recessive allele) is represented by ( 2pq ), because the individual could inherit the dominant allele from one parent and the recessive allele from the other, or vice versa.<\/li>\n\n\n\n<li><strong>Homozygous Recessive (aa):<\/strong> The frequency of individuals who are homozygous recessive is represented by ( q^2 ), as both alleles must be recessive.<\/li>\n<\/ol>\n\n\n\n<p>Thus, ( p^2 ) corresponds to the <strong>frequency of homozygous dominant<\/strong> individuals in a population, making option <strong>C<\/strong> the correct answer.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Hardy-Weinberg formula, what does p\u00b2 represent?A frequency of heterozygotesB frequency of the recessive alleleC frequency of the homozygous dominantsD frequency of the dominant allele The correct answer and explanation is : The correct answer is C: frequency of the homozygous dominants. The Hardy-Weinberg formula is a principle in population genetics used to calculate [&hellip;]<\/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-208817","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/208817","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=208817"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/208817\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=208817"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=208817"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=208817"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}