{"id":88465,"date":"2025-06-01T07:11:45","date_gmt":"2025-06-01T07:11:45","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=88465"},"modified":"2025-06-01T07:11:45","modified_gmt":"2025-06-01T07:11:45","slug":"if-one-set-of-chromosomes-for-a-given-plant-is-represented-as-n-in-ca","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/if-one-set-of-chromosomes-for-a-given-plant-is-represented-as-n-in-ca\/","title":{"rendered":"If one set of chromosomes for a given plant is represented as N; in ca"},"content":{"rendered":"

If one set of chromosomes for a given plant is represented as N; in case of double fertilization, the zygote and the endosperm nucleus of a diploid plant would have how many sets of chromosomes respectively?<\/p>\n

[amp_mcq option1=”N and 2N” option2=”2N and 2N” option3=”N and 3N” option4=”2N and 3N” correct=”option4″]<\/p>\n

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This question was previously asked in<\/div>\n
UPSC NDA-2 – 2018<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nIn double fertilization in a diploid plant (where N represents the haploid set of chromosomes), the zygote is formed by the fusion of a haploid male gamete (N) and a haploid egg cell (N), resulting in a diploid zygote (2N). The endosperm nucleus is typically formed by the fusion of a haploid male gamete (N) with the diploid central cell (usually containing two haploid polar nuclei, N+N=2N), resulting in a triploid primary endosperm nucleus (N + 2N = 3N).
\n<\/section>\n
\n– Double fertilization is a unique process in flowering plants involving two sperm cells.
\n– One sperm cell fertilizes the egg to form the diploid zygote (embryo).
\n– The other sperm cell fertilizes the central cell of the embryo sac to form the primary endosperm nucleus.
\n– In most diploid angiosperms, the central cell contains two polar nuclei, both usually haploid (N). Their fusion with a haploid sperm (N) results in a triploid (3N) endosperm.
\n<\/section>\n
\nThe zygote develops into the embryo. The primary endosperm nucleus develops into the endosperm, which serves as nutritive tissue for the developing embryo. The ploidy level of the central cell can vary in some species, potentially leading to different ploidy levels for the endosperm.
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

If one set of chromosomes for a given plant is represented as N; in case of double fertilization, the zygote and the endosperm nucleus of a diploid plant would have how many sets of chromosomes respectively? [amp_mcq option1=”N and 2N” option2=”2N and 2N” option3=”N and 3N” option4=”2N and 3N” correct=”option4″] This question was previously asked … <\/p>\n

Detailed SolutionIf one set of chromosomes for a given plant is represented as N; in ca<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1094],"tags":[1114,1117,1291],"class_list":["post-88465","post","type-post","status-publish","format-standard","hentry","category-upsc-nda-2","tag-1114","tag-biology","tag-plant-reproduction","no-featured-image-padding"],"yoast_head":"\nIf one set of chromosomes for a given plant is represented as N; in ca<\/title>\n<meta name=\"description\" content=\"In double fertilization in a diploid plant (where N represents the haploid set of chromosomes), the zygote is formed by the fusion of a haploid male gamete (N) and a haploid egg cell (N), resulting in a diploid zygote (2N). The endosperm nucleus is typically formed by the fusion of a haploid male gamete (N) with the diploid central cell (usually containing two haploid polar nuclei, N+N=2N), resulting in a triploid primary endosperm nucleus (N + 2N = 3N). - Double fertilization is a unique process in flowering plants involving two sperm cells. - One sperm cell fertilizes the egg to form the diploid zygote (embryo). - The other sperm cell fertilizes the central cell of the embryo sac to form the primary endosperm nucleus. - In most diploid angiosperms, the central cell contains two polar nuclei, both usually haploid (N). Their fusion with a haploid sperm (N) results in a triploid (3N) endosperm.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/exam.pscnotes.com\/mcq\/if-one-set-of-chromosomes-for-a-given-plant-is-represented-as-n-in-ca\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"If one set of chromosomes for a given plant is represented as N; in ca\" \/>\n<meta property=\"og:description\" content=\"In double fertilization in a diploid plant (where N represents the haploid set of chromosomes), the zygote is formed by the fusion of a haploid male gamete (N) and a haploid egg cell (N), resulting in a diploid zygote (2N). The endosperm nucleus is typically formed by the fusion of a haploid male gamete (N) with the diploid central cell (usually containing two haploid polar nuclei, N+N=2N), resulting in a triploid primary endosperm nucleus (N + 2N = 3N). - Double fertilization is a unique process in flowering plants involving two sperm cells. - One sperm cell fertilizes the egg to form the diploid zygote (embryo). - The other sperm cell fertilizes the central cell of the embryo sac to form the primary endosperm nucleus. - In most diploid angiosperms, the central cell contains two polar nuclei, both usually haploid (N). 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