The Reproductive System Welcome to your The Reproductive System 1. Leydig cells produce Testosterone Oestrogen Progesterone Semen2. Sterilization in the female involves cutting and tying the Uterus Ureter Urethra Oviduct3. The middle piece of the sperm provides Gene Food Energy Chromosomes4. When pregnancy does not occur the life of the corpus luteum is about 14 days 28 days 4 days 10 days5. The onset of menstruation in the female is termed as Ovulation Menopause Menarche Parthenogenesis6. Ovulation in mammals is a process in which The egg is released from Graafian follicle The egg is fertilized in fallopian tube The egg passes through fimbriated funnel of fallopian tube The unfertilized egg passes out of female's body7. The normal gestation period in humans is 285 days 280 days 270 days 290 days8. What will happen if the temperature of the scrotal sacs temporarily goes to about 2°C lower than normal temperature? Scrotal sacs will contract and come close to the body Scrotal sacs will relax and do down away from the body Testes will start rotation movement Sperm formation will be stopped9. If the vas deferens of a man are surgically disconnected or removed Sperms in semen will be non-motile Spermatogenesis will not take place Sperms in the semen will be without nuclei Semen will be without sperms10. The embryo in humans gets nutrition from the mother with the help of a special tissue called Villi Placenta Womb Uterus11. The stoppage of menstruation in the female is termed as Parthenogenesis Menarche Menopause Ovulation12. Fertilization means The meeting of male and female gametes The transfer of male gamete to the female gamete The shedding of gametes from a reproductive organ The fusion of nuclei of male and female gametes13. The site of maturation of human sperms is the Interstitial cells Seminiferous tubule Epididymis Prostate gland14. Which one of the following is the route that a sperm follows when it leaves the testes of a mammal? Epididymis→urethra→Vas deferens Epididymis→Vas deferens→urethra Urethra→epididymis→Vas deferens Vas deferens→epididymis→urethra15. Semen is the mixture of sperms and secretions from Cowper's glands Prostate gland Seminal vesicles All of these16. In human beings, the fertilization occurs in the Vagina Uterus Fallopian tubes Ovaries17. In females, after how much time after fertilization does the fertilized egg get implanted in the uterine wall? Three weeks One month Few months About seven days18. Corpus luteum in mammals is present in Heart and initiates atrial contraction Skin and acts as a pain receptor Brain and connects the two cerebral hemispheres Ovaries and produces progesterone hormone19. The fixing of the blastocyst to the wall of the uterus or endometrium is called Gestation Fertilization Implantation Parturition20. In human males, the testes lie in the scrotum because it helps in the Easy transfer of gametes Process of mating Formation of sperms Secretion of oestrogen21 out of 20Please fill in the comment box below.
