Human Reproduction: Modes & Gamete Ploidy — NEET Biology
📚 Practice ConceptFill in the blanks: (a) Humans reproduce __________ (asexually/sexually) (b) Humans are __________ (oviparous, viviparous, ovoviviparous) (c) Fertilisation is __________ in humans (external/internal) (d) Male and female gametes are __________ (diploid/haploid) (e) Zygote is __________ (diploid/haploid)
Which of the following statements regarding early human embryonic development and fertilisation are NOT correct? S1: Fertilisation typically occurs in the ampullary region of the oviduct. S2: The morula stage consists of 8-16 blastomeres formed after cleavage. S3: The trophoblast layer differentiates to form the embryo proper during early development. S4: The zygote, formed after the fusion of male and female gametes, is a haploid cell. S5: Implantation involves the attachment of the blastocyst to the myometrium of the uterus.
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