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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 1051. |
What is the significance of epididymis in male fertility? |
| Answer» The epididymis helps the sperm in attaining maturity, acquiring increased motility and fertilising capacity. It also stroes sperms for a short period before entering the vasa deferns. The epididymis shows peristatic and segmenting controctions at intervals to push the sperm away from the testis. | |
| 1052. |
From where the parturition signals aries-mother or foetus? Mention the main hormone involved in parturition. |
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Answer» Parturition is induced by a complex neuroendocrine mechanism. The siganls for parturition originate from the fuly developed foetus and the placenta which induce mild uterine contractions called foetal ejection reflex. The hormone involved in pathurition is oxytocin that acts on the utrene muscle and causes stronger uterine contractions. This leads to the expulsion of the baby out of the uterus through the birth canal. |
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| 1053. |
Which one of the following statements about morula humans is correct?A. It has more cytoplasm and more DNA than an uncleaved zygoteB. It has almost equal quantity of cytoplasm as an uncleaved zygote but much more DNAC. It has far less cytoplasm as less DNA than in an uncleaved zygoteD. It has more or less equal quantity of cytoplasm and DNA as in uncleaved zygote |
| Answer» Correct Answer - B | |
| 1054. |
The testes in humans are situated outside the scrotum. The pupose served is forA. maintaining the scrotal temperature lower than the internal body temperatureB. escaping any possible compression by the vesceral organsC. providing more space for the growth of epididymisD. providing a secodary sexual feature for exhibiting the male sex. |
| Answer» Correct Answer - A | |
| 1055. |
The first movements of the fetus and appearance of hair on its head are usually observed during which month of pregnancy?A. Fourth monthB. Fifth monthC. Sixth monthD. Third month |
| Answer» Correct Answer - b | |
| 1056. |
A : Corticotrophin releasing hormone is a a part of the clock that establishes the timing of birth . R : The signals for parturition originate from the fully developed foetus and placenta which induce mild uterine contractions called foetal ejection reflex .A. If both Assertion & Reason are true and the reason is the correct explanation of the assertion then mark (1)B. If both Assertion & Reason are true but the reason is not the correct explanation of the assertion then mark (2)C. If Assertion is true statement but Reason is false then mark (3)D. If both Assertion and Reason are false statement then Mark (4) |
| Answer» Correct Answer - B | |
| 1057. |
Signals from fully developed foetus and placenta ultimately lead to parturition which requires the release ofA. Estrogen from placentaB. Oxytocin from maternal pituitaryC. Oxytocin from foetal pituitaryD. Relaxin from placenta |
| Answer» Correct Answer - B | |
| 1058. |
If for some reason, the vesa effeerentia in the human reproductive system get blocked, the gametes will not transported fromA. ovary to uterusB. vagina to uterusC. testes to epididymisD. epididymis to vas deferens |
| Answer» Correct Answer - c | |
| 1059. |
If for some reason, the vesa effeerentia in the human reproductive system get blocked, the gametes will not transported fromA. testes to epididymisB. epididymis to vas deferenceC. ovary to uterusD. vagina to uterus |
| Answer» Correct Answer - A | |
| 1060. |
The signals for parturition orginate from:A. placenta onlyB. fully developed foetus onlyC. Placenta as well as fully developed foetusD. oxytocin released from maternal pituitary |
| Answer» Correct Answer - c | |
| 1061. |
The signals for parturition orginate from:A. both placenta as well as fully developed foetusB. oxytocin released from maternal pituitaryC. placenta onlyD. fully developed foetus only |
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Answer» Correct Answer - A The process of delivery of the foetus (childbirth) is called parturition which is induced by a complex neuroendocnne mechanism. The signals for parturition originate from the fully developed foetus and the placenta which induce mild uterine contractions called foetal ejection reflex. |
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| 1062. |
If for some reason, the vesa effeerentia in the human reproductive system get blocked, the gametes will not transported fromA. epididymis to vas deferensB. ovary to uterusC. vagina to uterusD. testes to epididymis |
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Answer» Correct Answer - D (d) Vasa efferentia (ductuli efference) are 10-20 fine tubules which connect rete testis with an epididymis (ductus epididymis). The latter is a pair of ducts from each testis which is formed bt union of its vasa efferentia. If tha vasa efferentia get blocked, the sperm will not be transported from testes to epididymis. |
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| 1063. |
In spermatogenesisA. a primary spermatocyte produces four similar sperms while in oogenesis a primary oocyte formsB. Four similar ovaC. Three large ova and one polar bodyD. Two large ova and two olar bodies |
| Answer» Correct Answer - D | |
| 1064. |
Minute cells spearating from ova areA. Primary oogoniaB. Polar bodiesC. Secondary oogoniaD. Primary spermatogonia |
| Answer» Correct Answer - B | |
| 1065. |
In corona radiata, the cells are held together byA. Cytoplasmic connectionsB. Cell membrane interdigitationsC. Thin layer of intercellular cementD. Hyaluronic acid. |
| Answer» Correct Answer - D | |
| 1066. |
One of the following cells secrete hormoneA. Cells of LeydigB. Cells of SertoliC. Primary spermatocytes `rarr` Secondary spermatocytesD. Secondary spermatocytes. |
| Answer» Correct Answer - A | |
| 1067. |
Which one holds corona radiata?A. LipoprotienB. LiposaccharideC. OligosaccharideD. Mucopolysaccharide |
| Answer» Correct Answer - d | |
| 1068. |
Which statement(s) is/are correctA. FSH and LH occur in both males and females.B. FSH and LH stimulate the follicitate secrete estrogen.C. The ovarian cycle depends upon blood levels of FSH and LH.D. All the above. |
| Answer» Correct Answer - D | |
| 1069. |
Ovulation occurs under the influence of:A. LHB. EstrogenesC. FSHD. progesterone |
| Answer» Correct Answer - a | |
| 1070. |
Which one of the following causes mammary glands to enlarge at pubertyA. TestosteroneB. ProgesteroneC. EstrogenD. Oxytocin. |
| Answer» Correct Answer - C | |
| 1071. |
Ovulation occurs under the influence of:A. LHB. FSHC. EstrogenD. Progesterone. |
| Answer» Correct Answer - A | |
| 1072. |
Ovulation occurs in and onA. 43687B. 43813C. 14-1 6D. Last two days of menstrual cycle. |
| Answer» Correct Answer - B | |
| 1073. |
Phase of menstrual cycle when ovulation occurs isA. LutealB. MenstrualC. Proliferative secretory and menstrualD. Secretory. |
| Answer» Correct Answer - C | |
| 1074. |
Phase of menstrual cycle when ovulation occurs isA. LutealB. MenstrualC. ProiferativeD. Secretory |
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Answer» Correct Answer - C (C ) Phase of menstrual cycle when ovulation occurs in proliferative/ follicular. |
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| 1075. |
FSH acts on the `ul((A))` cells and stimulates secretion of `ul((B))` which help in the process of `ul((C))`. |
| Answer» Correct Answer - A - Sertoli, B - Some factors, C - Spermiogenesis | |
| 1076. |
Assertion: After puberty, the increased levels of GnRH acts at the posterior pituitary and stimulates the secretion of two gonadotropins LH and FSH. Reason: LH acts on the Sertoli cells and FSH acts on the Leyding cells.A. If both assertion and reason are true and the reason is the correct explanation of the assertion.B. If both assertion and reason are true but reason is not the correct explanation of the assertion.C. If assertion is true but reason is false.D. If both assertion and reason are false. |
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Answer» Correct Answer - D (D) Spermatogenesis starts at the age of puberty due to significant increase in the secretion of gonadotropin releasing hormone (GnRH). This is a hypothalamic hormone. The increased levels of GnRH then acts at the anterior pituitary gland and stimulates secretion of two gonadotropins leutinising hormone (LH) and follicle stimulating hormone (FSH). LH acts at the Leydig cells and stimulates synthesis and secretion of androgens. Androgens, in turn, stimulate the process of spermatogenesis. FSH acts on the Sertoli cells and stimulates secretion fo some factors which help in the process of spermiogenesis. |
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| 1077. |
In ectopic pregnancy foetus grown inA. Fundus part of uterusB. Fallopian tubeC. UterusD. Both (1)& (3) |
| Answer» Correct Answer - C | |
| 1078. |
Tubuli recti of seminiferous tubules open intoA. EpididymisB. Vasa efferentiaC. Vasa deferentiaD. Reta testis |
| Answer» Correct Answer - D | |
| 1079. |
Crytorchidism isA. Non- development of testesB. Nondescent of testes into scrotumC. Removal of scrotumD. Breaking connetion of was deferens |
| Answer» Correct Answer - B | |
| 1080. |
A change in ovum after penetration of sperm isA. Formation of first polar bodyB. Second meiosis startsC. First meiosisD. Formation of second polar body |
| Answer» Correct Answer - D | |
| 1081. |
A : Lack of menstruation may be indicative of pregnancy R : Menstruation only occurs if the released ovum is fertilisedA. If both Assertion & Reason are true and the reason is the correct explanation of the assertion then mark (1)B. If both Assertion & Reason are true but the reason is not the correct explanation of the assertion then mark (2)C. If Assertion is true statement but Reason is false then mark (3)D. If both Assertion and Reason are false statement then Mark (4) |
| Answer» Correct Answer - C | |
| 1082. |
The structure that developes at the site of release of ovum from mammalian ovary during embryonic development is:A. corpus tectumB. corpus luteumC. corpus callosumD. corpus mammalian |
| Answer» Correct Answer - b | |
| 1083. |
The slow block to polyspermy developes in response to the:A. release of bindinB. formation of fertilization membraneC. spreading of fertilization cone around eggD. openning of soium gates in the gates in the plasma membrane |
| Answer» Correct Answer - b | |
| 1084. |
The Mullerian duct in the female amniotes developes into:A. UreterB. UrethraC. Sperm ductD. Oviduct. |
| Answer» Correct Answer - D | |
| 1085. |
Endoderm in mammalian embryo is formed by:A. epibolyB. invaginationC. ingressionD. delamination |
| Answer» Correct Answer - d | |
| 1086. |
The Mullerian duct in the female amniotes developes into:A. oviductB. ureterC. seminal receptacleD. uterus |
| Answer» Correct Answer - a | |
| 1087. |
Which hormone acts on the uterine muscle and stronger uterine contractions. |
| Answer» Correct Answer - Oxytocin | |
| 1088. |
Forceful muscular contractions of uterine wall is involved in:A. lactationB. micturitionC. parturitionD. implantation |
| Answer» Correct Answer - c | |
| 1089. |
Forceful muscular contractions of uterine wall are involved inA. ImplantaitionB. LactationC. MicturitionD. Parturition. |
| Answer» Correct Answer - D | |
| 1090. |
Zona pellucida disintegrates just:A. Before fertilizationB. After fertilizationC. Midway during cleavageD. After completion of cleavage. |
| Answer» Correct Answer - D | |
| 1091. |
Which germ layer developes first during embryonic development?A. ectodermB. mesodermC. endodermD. both (b) and (c ) |
| Answer» Correct Answer - c | |
| 1092. |
Assertion: All copulations do not lead to the fertilisation and pregnance. Reason: Fertilisation can occur only if the ovum and sperms are transported simultaneously to the ampullary isthmic junction. |
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Answer» Correct Answer - A Fertilisation can only occur if the ovum and sperms are tranported simultaneously to the ampullary-isthmic junction and ovum is released only once a month. This is one of the reasons why all copulations do not lead to fertilisation and pregnancy. |
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| 1093. |
Assertion: All copulations cannot lead to fertilisation and pregnancy. Reason: Fertilisation can only occur if the ovum and sperms are transported simulaneously to the ampullary region.A. If both assertion and reason are true and the reason is the correct explanation of the assertion.B. If both assertion and reason are true but reason is not the correct explanation of the assertion.C. If assertion is true but reason is false.D. If both assertion and reason are false. |
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Answer» Correct Answer - A (A) Fertilisation can only occur if the ovum and sperms are transported simultaneously to the ampullary region. This is the reason why not all copulations lead to fertilisation and pregnancy. |
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| 1094. |
Egg is liberated from ovary and enters the fallopian tube inA. Secondary oocyte stageB. Primary oocyte stageC. Oogonial stageD. Mature ovaum stage |
| Answer» Correct Answer - A | |
| 1095. |
Trace a sperm ell from the structure where it is produced to fertilization of the egg 1. Seminiferous tubules 2. Vas deferens 3. Uterus 4. Fallopian tube 5. Vagina 6. Epididymis 7. UrethraA. 6,1,2,7,5,3,4B. 1,6,2,7,5,3,4C. 1,6,2,7,5,4,3D. 1,2,6,7,5,3,4 |
| Answer» Correct Answer - B | |
| 1096. |
A : All copulations do not lead to fertilisation and pregnancy . R : Fertillsation can occur if the ovum and sperms are transported simultaneously to the ampullary - isthmic junctionA. If both Assertion & Reason are true and the reason is the correct explanation of the assertion then mark (1)B. If both Assertion & Reason are true but the reason is not the correct explanation of the assertion then mark (2)C. If Assertion is true statement but Reason is false then mark (3)D. If both Assertion and Reason are false statement then Mark (4) |
| Answer» Correct Answer - A | |
| 1097. |
A : Oxytocin acts on the uterine muscles and cause stronger uterine contractions which in turn stimulates further secretion of oxytocin R : Oxytocin is released form maternal pituitaryA. If both Assertion & Reason are true and the reason is the correct explanation of the assertion then mark (1)B. If both Assertion & Reason are true but the reason is not the correct explanation of the assertion then mark (2)C. If Assertion is true statement but Reason is false then mark (3)D. If both Assertion and Reason are false statement then Mark (4) |
| Answer» Correct Answer - B | |
| 1098. |
Zona pellucida disintegrates just:A. after fertlizationB. before fertilizationC. midway during cleavageD. after completion of cleavage |
| Answer» Correct Answer - d | |
| 1099. |
Zona pellucida disintegrates just:A. just after ferrtilizationB. before fertilizationC. before cleavageD. after completion of cleavage |
| Answer» Correct Answer - D | |
| 1100. |
Correct sequence of human embryonic development isA. Gastrocoel-Blastocoel-Neural Crest -NotochordB. Gastrocoel-Blastocel-Notochord-Neural CrestC. Blastocoel-Neural crest -Gastrocoel -NotochordD. Blastocoel-Gastrucoel-Neural crest -Notochord. |
| Answer» Correct Answer - D | |