NEET UG Human Reproduction — practice questions
64 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice NEET UG Human Reproduction in the app →The testes are located outside the abdominal cavity within the scrotum because:Each testis is divided into approximately how many compartments called testicular lobules?Each seminiferous tubule is lined on its inside by two types of cells:Leydig cells (interstitial cells) of the testis are responsible for:
The correcThe secretions constituting seminal plasma are rich in all of the following EXCEPT:The enlarged end of the penis covered by a loose fold of skin (foreskin) is called the:The primary female sex organs that produce ovum and steroid hormones are the:The finger-like projections at the edge of the infundibulum (fallopian tube), which help in collection of the The part of the fallopian tube where fertilisation typically takes place is the:The three layers of the uterine wall, from outermost to innermost, are:The female external genitalia (vulva) include all of the following EXCEPT:The glandular tissue of each breast is divided into approximately how many mammary lobes containing alveoli?In males, LH acts on which cells to stimulate androgen secretion?In males, FSH acts on which cells?The transformation of spermatids into spermatozoa is called:After spermiogenesis, the release of mature sperm from the seminiferous tubules is called:A primary spermatocyte (diploid, 46 chromosomes) undergoes the first meiotic division to produce:
The acrosome of a sThe middle piece of a sperm is rich in mitochondria because:During each coitus, a human male typically ejaculates approximately:For normal male fertility, at least what percentage of ejaculated sperms must show vigorous motility?At puberty, approximately how many primary follicles remain in each ovary?During oogenesis, the first meiotic division of the primary oocyte is:The Graafian follicle is best described as:The new membrane that forms around the secondary oocyte just before ovulation is called the:In human females, the first menstruation at puberty is termed:The average menstrual cycle in human females lasts approximately:
In a typical 28-daMenstruation occurs because:The menstrual phase normally lasts approximately:The reproductive phase in women, marked by cyclic menstruation, extends between:During fertilisation, the entry of additional sperms (polyspermy) is blocked because:The sex of the baby is genetically determined by:After fertilisation, the resulting zygote first undergoes cleavage as it moves through the:The embryo with 8–16 blastomeres is called the:In a blastocyst, the outer layer attaching to the endometrium is the *trophoblast*, and the inner cluster thatThe structural and functional unit between the developing foetus and maternal body that supports exchange of gWhich of the following hormones is produced by the placenta during pregnancy?Which hormone, secreted by the ovary in the later phase of pregnancy, is produced *only* during pregnancy?By the end of which month/period of pregnancy is the human embryo's heart formed?Stem cells, present in the inner cell mass, are best described as cells that:The average gestation period in humans is approximately:The mild uterine contractions originating from the fully developed foetus and placenta that initiate parturitiThe hormone primarily responsible for stronger uterine contractions during parturition is:The first milk produced during the initial few days of lactation, rich in antibodies essential for the newbornWhich of the following statements is TRUE?During fertilisation, the second meiotic division of the secondary oocyte produces:How many chromosomes are present in a normal human zygote immediately after fertilisation?Fertilisation in humans typically occurs in theOogenesis in humans beginsOvulation in a typical 28-day human menstrual cycle occurs around dayTypical duration of human pregnancy is approximatelyThe hormone detected by home pregnancy tests isThe first milk produced after birth, rich in antibodies, is calledA single spermatogonium ultimately produces how many functional sperm cells?A single primary oocyte produces how many functional egg cells after meiosis?Fertilisation in humans typically occurs in:The average length of the human menstrual cycle is:The LH SURGE triggers which key event in the menstrual cycle?The hormone HCG (Human Chorionic Gonadotropin) that is detected by pregnancy tests is produced by:Human pregnancy lasts approximately:The hormone that drives uterine contractions during childbirth (parturition) is:Colostrum (the first milk after childbirth) is rich in: