Which statement about variation is true?<\/p>\n\n\n\n
All phenotypic variation is the result of genotypic variation <\/p>\n\n\n\n
All genetic variation produces phenotypic variation <\/p>\n\n\n\n
All nucleotide variability results in neutral variation <\/p>\n\n\n\n
All new alleles are the result of nucleotide variability.<\/p>\n\n\n\n
The correct answer and explanation is :<\/strong><\/mark><\/p>\n\n\n\n The correct answer is: “All new alleles are the result of nucleotide variability.”<\/strong><\/p>\n\n\n\n Phenotypic Variation<\/strong>: Genotypic Variation and Phenotypic Variation<\/strong>: Nucleotide Variability and Neutral Variation<\/strong>: New Alleles and Nucleotide Variability<\/strong>: Which statement about variation is true? All phenotypic variation is the result of genotypic variation All genetic variation produces phenotypic variation All nucleotide variability results in neutral variation All new alleles are the result of nucleotide variability. The correct answer and explanation is : The correct answer is: “All new alleles are the result of […]<\/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-208548","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/208548","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=208548"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/208548\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=208548"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=208548"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=208548"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Explanation:<\/h3>\n\n\n\n
Phenotypic variation refers to the differences in physical traits or observable characteristics of organisms, such as size, color, and shape. While it is influenced by genetic factors, it is not solely the result of genetic variation. Environmental factors, such as diet, climate, and lifestyle, also contribute to phenotypic variation. Thus, the statement that “All phenotypic variation is the result of genotypic variation” is false because phenotypic traits can be influenced by non-genetic factors.<\/p>\n\n\n\n
Genotypic variation refers to differences in the genetic makeup of individuals, which can lead to variation in traits. However, not all genetic variation produces noticeable phenotypic changes. Some genetic changes may occur in regions of the genome that do not affect an organism’s traits or may not be expressed due to factors like dominance, epistasis (interaction between genes), or environmental influences. Thus, the statement “All genetic variation produces phenotypic variation” is also false.<\/p>\n\n\n\n
Nucleotide variability refers to the differences in the DNA sequence of individuals within a population. Not all nucleotide changes lead to phenotypic changes, and many have no effect on an organism\u2019s traits. Neutral variation refers to genetic changes that do not impact an organism’s fitness or phenotype and are often due to mutations in non-coding regions of the genome. Thus, “All nucleotide variability results in neutral variation” is an inaccurate statement because some nucleotide variations can influence phenotype, while others may have no effect (e.g., silent mutations or mutations in non-coding regions).<\/p>\n\n\n\n
New alleles arise through mutations in the DNA sequence, which are the result of nucleotide variability. Mutations can be caused by various factors such as errors during DNA replication or external agents like radiation. When these mutations occur in a gene, they can lead to the creation of new alleles, which are variants of a gene that may express different traits. Therefore, the statement “All new alleles are the result of nucleotide variability” is true, as nucleotide changes are the primary source of new genetic variation.<\/p>\n","protected":false},"excerpt":{"rendered":"