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Human reproduction give me so tough questions like i can ask them orally and the student ha ve to give answr in one word

Here are 30 tough one-word answer questions on Human Reproduction for oral quizzes:

šŸ§¬ Gametogenesis & Cell Division

  1. What is the ploidy of a secondary oocyte at the time of ovulation? ā†’ Haploid (technically haploid but arrested in MII)
  2. Which type of cell division produces spermatids from secondary spermatocytes? ā†’ Meiosis (Meiosis II)
  3. What is the residual cytoplasm discarded during spermiogenesis called? ā†’ Cytoplast (residual body)
  4. Name the process by which spermatids transform into mature spermatozoa. ā†’ Spermiogenesis
  5. Which polar body can undergo a second division after fertilisation? ā†’ First (first polar body)

šŸ„š Oogenesis & Ovulation

  1. At what stage is the primary oocyte arrested before puberty? ā†’ Prophase (Prophase I of meiosis)
  2. What hormone triggers the LH surge causing ovulation? ā†’ Oestrogen (positive feedback)
  3. What is the name of the fluid-filled cavity in a mature Graafian follicle? ā†’ Antrum
  4. Which layer of cells immediately surrounds the oocyte inside the follicle? ā†’ Granulosa
  5. What is the zona pellucida primarily composed of? ā†’ Glycoproteins

šŸ”¬ Fertilisation

  1. What reaction prevents polyspermy after one sperm enters the egg? ā†’ Cortical (cortical reaction)
  2. Where in the female reproductive tract does fertilisation normally occur? ā†’ Ampulla
  3. What is the diploid cell formed immediately after fertilisation called? ā†’ Zygote
  4. Which sperm enzyme helps penetrate the zona pellucida? ā†’ Acrosin
  5. What process capacitates the sperm in the female tract? (capacitation trigger) ā†’ Capacitation

šŸ§« Embryonic Development

  1. What is the solid ball of cells formed after cleavage divisions called? ā†’ Morula
  2. What is the outer cell layer of the blastocyst called? ā†’ Trophoblast
  3. Which germ layer forms the gut epithelium? ā†’ Endoderm
  4. What is the first organ to develop from mesoderm in the embryo? ā†’ Heart
  5. What process forms the three germ layers from the bilaminar disc? ā†’ Gastrulation

šŸ¤° Placenta & Hormones

  1. Which hormone maintains the corpus luteum in early pregnancy? ā†’ hCG (human chorionic gonadotropin)
  2. What is the functional unit of the placenta called? ā†’ Cotyledon
  3. Which placental hormone suppresses maternal immune rejection of the fetus? ā†’ Progesterone
  4. What is the fetal contribution to the placenta called? ā†’ Chorion
  5. Which hormone relaxes the pubic symphysis before childbirth? ā†’ Relaxin

āš” Advanced / Tricky

  1. What is the name of the sperm-attracting chemical released by the egg? ā†’ Resact (or Allurin)
  2. Which cell type in the testis secretes testosterone? ā†’ Leydig
  3. What is the blood-testis barrier maintained by? ā†’ Sertoli (Sertoli cells)
  4. At what stage does implantation occur? ā†’ Blastocyst
  5. Which chromosome determines male sex in humans? ā†’ Y
Tip for oral use: Read only the bold question aloud - the answer in italics is for you. These are designed so the answer is a single word or compound noun. Great for rapid-fire rounds!
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