{"id":199806,"date":"2025-03-12T16:01:16","date_gmt":"2025-03-12T16:01:16","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=199806"},"modified":"2025-03-12T16:01:18","modified_gmt":"2025-03-12T16:01:18","slug":"what-cross-will-produce-the-most-pink-flowered-plants","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/03\/12\/what-cross-will-produce-the-most-pink-flowered-plants\/","title":{"rendered":"\u00a0What cross will produce the most pink-flowered plants"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u00a0What cross will produce the most pink-flowered plants ?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><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 class=\"wp-block-paragraph\">The cross that will produce the most pink-flowered plants is <strong>a cross between two heterozygous (Rr) plants<\/strong>, where <strong>R (red) and r (white) exhibit incomplete dominance<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Correct Answer:<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Rr \u00d7 Rr<\/strong> (heterozygous pink \u00d7 heterozygous pink)<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Explanation:<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Understanding Incomplete Dominance<\/strong><br>In incomplete dominance, neither allele is completely dominant over the other. Instead of one allele masking the effect of the other, a heterozygous genotype results in a blended or intermediate phenotype. In this case:<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>RR<\/strong> (homozygous red) produces red flowers.<\/li>\n\n\n\n<li><strong>rr<\/strong> (homozygous white) produces white flowers.<\/li>\n\n\n\n<li><strong>Rr<\/strong> (heterozygous) produces pink flowers due to the blending of red and white alleles.<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Punnett Square Analysis<\/strong><br>Crossing two heterozygous pink-flowered plants (<strong>Rr \u00d7 Rr<\/strong>) results in the following combinations: Parental Alleles \u2192 <strong>R<\/strong> <strong>r<\/strong> <strong>R<\/strong> RR (Red) Rr (Pink) <strong>r<\/strong> Rr (Pink) rr (White) This produces the following phenotypic ratio:<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>1 RR (Red)<\/strong><\/li>\n\n\n\n<li><strong>2 Rr (Pink)<\/strong><\/li>\n\n\n\n<li><strong>1 rr (White)<\/strong><\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Maximum Pink-Flowered Plants<\/strong><br>From the above ratio, <strong>50% (2 out of 4) of the offspring will have pink flowers<\/strong>. This is the highest possible proportion of pink-flowered plants in a simple monohybrid cross.<\/li>\n\n\n\n<li><strong>Why Not Other Crosses?<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>RR \u00d7 RR \u2192 All red<\/strong><\/li>\n\n\n\n<li><strong>rr \u00d7 rr \u2192 All white<\/strong><\/li>\n\n\n\n<li><strong>RR \u00d7 rr \u2192 100% pink, but fewer overall when compared to Rr \u00d7 Rr crosses in larger populations<\/strong><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Thus, the <strong>Rr \u00d7 Rr<\/strong> cross produces the highest number of pink-flowered plants in a given population.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u00a0What cross will produce the most pink-flowered plants ? The correct answer and explanation is : The cross that will produce the most pink-flowered plants is a cross between two heterozygous (Rr) plants, where R (red) and r (white) exhibit incomplete dominance. Correct Answer: Rr \u00d7 Rr (heterozygous pink \u00d7 heterozygous pink) Explanation: Thus, the [&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-199806","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/199806","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=199806"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/199806\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=199806"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=199806"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=199806"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}