{"id":3905,"date":"2023-01-09T10:47:12","date_gmt":"2023-01-09T10:47:12","guid":{"rendered":"https:\/\/7thclass.deltapublications.in\/?page_id=3905"},"modified":"2025-11-21T09:35:59","modified_gmt":"2025-11-21T09:35:59","slug":"s-12-b-sexual-reproduction","status":"publish","type":"page","link":"https:\/\/7thclass.deltapublications.in\/index.php\/s-12-b-sexual-reproduction\/","title":{"rendered":"S-12.b Sexual Reproduction"},"content":{"rendered":"\n<h2 class=\"wp-block-heading has-text-align-center has-text-color\" style=\"color:#00056d;text-transform:uppercase\"><strong>Sexual Reproduction<\/strong><\/h2>\n\n\n\n<p class=\"has-text-color has-huge-font-size\" style=\"color:#74008b\"><strong>Key Notes :<\/strong><\/p>\n\n\n\n<h4 class=\"wp-block-heading has-text-color has-link-color has-large-font-size wp-elements-4f5a8ec66b21d16f2ec25acc46851385\" style=\"color:#000060\"><strong>Definition<\/strong>:<\/h4>\n\n\n\n<p class=\"has-large-font-size\">Sexual reproduction is a biological process in which two parents contribute genetic material to produce offspring, ensuring genetic diversity.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h4 class=\"wp-block-heading has-text-color has-link-color has-large-font-size wp-elements-9bb2da1d6808cc364121bb75dcf8f1ef\" style=\"color:#000060\"><strong>Key Features<\/strong>:<\/h4>\n\n\n\n<p class=\"has-large-font-size\"><strong>Two Parents<\/strong>: Involves a male and a female organism.<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong>Gametes<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>Male gamete: <strong>Sperm<\/strong> (in animals) or <strong>Pollen grains<\/strong> (in plants).<\/li>\n\n\n\n<li>Female gamete: <strong>Egg<\/strong> or <strong>Ovule<\/strong>.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-large-font-size\"><strong>Fertilization<\/strong>: The fusion of male and female gametes to form a zygote.<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong>Genetic Variation<\/strong>: Offspring inherit traits from both parents, leading to diversity.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h4 class=\"wp-block-heading has-text-color has-link-color has-large-font-size wp-elements-f210a7b7e9f85bc8ac3670643f9287e7\" style=\"color:#000060\"><strong>Process of Sexual Reproduction<\/strong>:<\/h4>\n\n\n\n<p class=\"has-large-font-size\"><strong>Gamete Formation<\/strong>:<\/p>\n\n\n\n<p class=\"has-large-font-size\">Male and female gametes are formed in specialized reproductive organs.<\/p>\n\n\n\n<p class=\"has-large-font-size\">Examples:<\/p>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li><strong>Animals<\/strong>: Testes (male) and ovaries (female).<\/li>\n\n\n\n<li><strong>Plants<\/strong>: Anthers (male) and ovules (female).<\/li>\n<\/ul>\n\n\n\n<p class=\"has-large-font-size\"><strong>Fertilization<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>External fertilization: Occurs outside the body (e.g., in frogs).<\/li>\n\n\n\n<li>Internal fertilization: Occurs inside the body (e.g., in humans).<\/li>\n<\/ul>\n\n\n\n<p class=\"has-large-font-size\"><strong>Zygote Development<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>The zygote divides and differentiates to form an embryo.<\/li>\n\n\n\n<li>In plants, the zygote develops into a seed.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-large-font-size\"><strong>Growth<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-large-font-size\">The embryo grows into a new organism with traits from both parents.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h4 class=\"wp-block-heading has-text-color has-link-color has-large-font-size wp-elements-127064a109693eba07cc8b8c96053d30\" style=\"color:#000060\"><strong>Sexual Reproduction in Animals<\/strong>:<\/h4>\n\n\n\n<p class=\"has-large-font-size\"><strong>Examples<\/strong>: Humans, mammals, birds, reptiles, etc.<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong>Male Reproductive System<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>Testes produce sperm.<\/li>\n\n\n\n<li>The sperm is transported through reproductive ducts.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-large-font-size\"><strong>Female Reproductive System<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>Ovaries produce eggs.<\/li>\n\n\n\n<li>Fertilization occurs in the oviduct (fallopian tube in humans).<\/li>\n<\/ul>\n\n\n\n<p class=\"has-large-font-size\"><strong>Development<\/strong>: The embryo grows in the uterus in mammals.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h4 class=\"wp-block-heading has-text-color has-link-color wp-elements-ce5160c511fb38cf5839700b08da6d7c\" style=\"color:#000060\"><strong>Sexual Reproduction in Plants<\/strong>:<\/h4>\n\n\n\n<p class=\"has-large-font-size\"><strong>Flower Structure<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li><strong>Stamen<\/strong>: Male part; produces pollen.<\/li>\n\n\n\n<li><strong>Carpel<\/strong>: Female part; contains ovary with ovules.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-large-font-size\"><strong>Pollination<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-large-font-size\">Transfer of pollen from stamen to carpel.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-large-font-size\">Types:<\/p>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li><strong>Self-pollination<\/strong>: Pollen lands on the same flower.<\/li>\n\n\n\n<li><strong>Cross-pollination<\/strong>: Pollen transferred between different flowers.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-large-font-size\"><strong>Fertilization<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-large-font-size\">Pollen reaches the ovule, and fertilization occurs.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-large-font-size\"><strong>Seed Formation<\/strong>: The fertilized ovule develops into a seed.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h4 class=\"wp-block-heading has-text-color has-link-color wp-elements-df12415b2548eeb10474a7113433d6e1\" style=\"color:#000060\"><strong>Importance of Sexual Reproduction<\/strong>:<\/h4>\n\n\n\n<ol class=\"wp-block-list has-large-font-size\">\n<li>Promotes genetic variation, enabling adaptation to environmental changes.<\/li>\n\n\n\n<li>Reduces the risk of genetic disorders.<\/li>\n\n\n\n<li>Ensures species survival over generations.<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Examples<\/strong>:<\/h4>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>Animals: Humans, cats, frogs, and fish.<\/li>\n\n\n\n<li>Plants: Sunflowers, mango trees, and roses.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-color has-large-font-size\" style=\"color:#d90000\"><strong>Let&#8217;s practice!<\/strong><\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/wordwall.net\/play\/81207\/889\/885\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-3-57.png\" alt=\"\" class=\"wp-image-6016\" srcset=\"https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-3-57.png 500w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-3-57-300x300.png 300w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-3-57-150x150.png 150w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-3-57-400x400.png 400w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/wordwall.net\/play\/81356\/548\/174\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-2-52.png\" alt=\"\" class=\"wp-image-6017\" srcset=\"https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-2-52.png 500w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-2-52-300x300.png 300w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-2-52-150x150.png 150w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-2-52-400x400.png 400w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Sexual Reproduction Key Notes : Definition: Sexual reproduction is a biological process in which two parents contribute genetic material to produce offspring, ensuring genetic diversity. Key Features: Two Parents: Involves a male and a female organism. Gametes: Fertilization: The fusion of male and female gametes to form a zygote. Genetic Variation: Offspring inherit traits from<a class=\"more-link\" href=\"https:\/\/7thclass.deltapublications.in\/index.php\/s-12-b-sexual-reproduction\/\">Continue reading <span class=\"screen-reader-text\">&#8220;S-12.b Sexual Reproduction&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"om_disable_all_campaigns":false,"footnotes":""},"class_list":["post-3905","page","type-page","status-publish","hentry","entry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/3905","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/comments?post=3905"}],"version-history":[{"count":17,"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/3905\/revisions"}],"predecessor-version":[{"id":17596,"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/3905\/revisions\/17596"}],"wp:attachment":[{"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/media?parent=3905"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}