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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.
| 901. |
During cleavage all division areA. EqualB. ReductionalC. MitoticD. Determinate. |
| Answer» Correct Answer - C | |
| 902. |
Division of human egg is :A. Equal holoblasticB. Unequl boloblasticC. Superficial meroblasticD. Discoidal meroblastic. |
| Answer» Correct Answer - B | |
| 903. |
Division of human egg is :A. Equal holoblasticB. Unequal holoblasticC. Superficial meroblasticD. Discoidal meroblastic |
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Answer» Correct Answer - A (A) Division of human egg is equal holoblastic. |
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| 904. |
Mass of cells formed during early embryomic development of an animal isA. MorulaB. BlastulaC. AmphiblastulaD. Gastrula. |
| Answer» Correct Answer - A | |
| 905. |
When do the egg cells of a human female begin meiosis ?A. Before she is bornB. During ovulationC. At the start of pubertyD. During menstruation |
| Answer» Correct Answer - A | |
| 906. |
Division in which the egg divides completely is known asA. HoloblasticB. MeroblasticC. MacroblasticD. Blastogenic. |
| Answer» Correct Answer - A | |
| 907. |
Embryo at 16-celled stage is calledA. MorulaB. BlastulaC. BlastomereD. Gastrula |
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Answer» Correct Answer - A (A) Embryo at 16-celled stage is called morula. |
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| 908. |
32-celled stage of human embryo isA. Smaller than fertilized eggB. Same size as fertilized eggC. Two tmes the size of fertilized eggD. Four times the fertilized egg. |
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Answer» Correct Answer - B (B) 32-celled stage of human embryo is same size as fertilized egg (because during cleavage cell size not increase) |
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| 909. |
Stage of embryo at which implantation occurs in human female isA. MorulaB. ZygoteC. BlastocystD. Transient 3- celled stage |
| Answer» Correct Answer - C | |
| 910. |
The 32 cells stage of the human embryo is:A. smaller than the fertilized eggB. same size as the fertilized eggC. two times of the size of the fertilized eggD. four times the size of the fertilized egg |
| Answer» Correct Answer - b | |
| 911. |
Braxton Hicks contractione occur duringA. Passage of food through alimentary canalB. PeristalsisC. PregnancyD. Lactation. |
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Answer» Correct Answer - C They are false labour contractions starting around six weeks of pregnancy and continuing upto about six months of pregnancy. |
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| 912. |
Neubenkern is part ofA. Human ovumB. Human spermC. FoetusD. Graafian follicle. |
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Answer» Correct Answer - B Nebenkern is a term used for both paranucleus and mitochondrial mass in sperm. |
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| 913. |
Cavity formed during gastrulation isA. Primitive gutB. GastrocoelC. ArchenteronD. All the above. |
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Answer» Correct Answer - B The actual cavity is known as gastrocoel. It is, of course, present inside the tube called primitive gut or archenteron. |
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| 914. |
Cavity formed during gastrulation isA. Primitive gut B. GastrocoelC. ArchenteronD. All the above. |
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Answer» Correct Answer - B The actual cavity is known as gastrocoel. It is, of course, present inside the tube called primitive gut or archenteron. |
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| 915. |
Thei internal cavity commonly formed by ell division prior to gastrulation is theA. EnteronB. BlastoporeC. BlastocoelD. Coelom. |
| Answer» Correct Answer - C | |
| 916. |
The best definition of the process of gastrulation is that it is a process where theA. blastocoel is formedB. zygote gets converted to larvaC. cells move the occupy their definite positionD. simple layeres blastula becomes two layeres |
| Answer» Correct Answer - C | |
| 917. |
Notochord develops fromA. ectodermB. endodermC. mesodermD. All of these |
| Answer» Correct Answer - C | |
| 918. |
Notochord develops fromA. Primary ectodermB. Primary endodermC. primary mesodermD. Both A and B |
| Answer» Correct Answer - C | |
| 919. |
The structures derived from extoderm are (i). Pituitary gland (ii). Comea (iii). Kidneys (iv). NotochordA. (i) and (iii)B. (ii) and (iii)C. (i) and (ii)D. (ii) and (iv) |
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Answer» Correct Answer - C Refer to answer 127 |
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| 920. |
Select the correct option Assertion Q. due to fragmentation in Planaria, each part develops the remaining body parts and becomes a complete animal Reason R. Differentiated tissue present in each broken part of Planaria undergoes dediferentiation and then differentiation in regeneration.A. Q and R both are correct and R is not a correct reason for QB. Q and R both are correct and R is correct reason for QC. Q and R both are wrongD. Q is correct but R is wrong. |
| Answer» Correct Answer - B | |
| 921. |
Notochord, skeletal system and dermis of skin are derived fromA. MesodermB. EndodermC. EctodermqD. All the above. |
| Answer» Correct Answer - A | |
| 922. |
Notochord grows fromA. NeuroporeB. Prechordal plateC. Hypochordal rodD. Chorda-mesoderm. |
| Answer» Correct Answer - D | |
| 923. |
Given below are assertion and reason . Point out if both are true with reason being correct explanation (A). Both true but reason is not correct explanation (B), assertion true but reason is wrong (C ), both are wrong (D). Assertion: Parturition is induced by neural signal in materianl pituitary . Reason: At the end of gestation period. the maternal pituitary releases productin whichcauses uterine contractions.A. AB. BC. CD. D |
| Answer» Correct Answer - D | |
| 924. |
Estrous cucle is characterstic of:A. mammalsB. human femalesC. mammalian femalesD. non-primate mammalian females |
| Answer» Correct Answer - d | |
| 925. |
Urine test during pregnancy determines the presence ofA. human chorionic gonadotropin hormoneB. estrogenC. progesterone inhibits the release of LH from putuitary causing regression of corpus luteumD. luteinising hormone. |
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Answer» Correct Answer - A During pregnance, humna chorionic gonadotropin hormone is released by trophoblastic cells which passes out in urine. Thus, if this hormone appears in urine test, it means the woman in pregnant. This hormone maintains the corpus luteum and stimulates it to secrete progeterone which is required for the maintenance of the uterus. |
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| 926. |
Assertion: The presence of X or Y chromosome in the sperm determine the sex of the embryo Reason: All the eggs have one X chromosome.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) The presence of X or Y chromosome in the sperm determine the sex of the embryo. All the eggs have one X- chromosome. |
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| 927. |
What is true of cleavage?A. Daughter cells or blastomeres grow in size equal to paren t cellB. Blastomeres separateC. Cytoplasm of blastomeres increases after each division.D. There is no growth of daughter cells. |
| Answer» Correct Answer - D | |
| 928. |
Gonads/testes develop from embryonicA. EctodermB. EndodermC. MesodermD. Both mesoderm and endoderm. |
| Answer» Correct Answer - C | |
| 929. |
The accompanying diagram shows the changes that take place in the endometrium during a normal menstrual cycle. Identify the changes and select the correct option.A. `{:("Ovulation","Menstruation"),(A,B):}`B. `{:("Ovulation","Menstruation"),(A,C):}`C. `{:("Ovulation","Menstruation"),(C,A):}`D. `{:("Ovulation","Menstruation"),(B,D):}` |
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Answer» Correct Answer - C Menstruation occurs for 1-5 days and ovulation occurs on `14^(th)` day of a normal menstrual cycle. |
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| 930. |
If for some reason, the vasa efferentia in the human reproductive system get blocked, the gametes will not transported fromA. testes to epididymisB. epididumis to vas deferensC. ovary to uterusD. vagina to uterus. |
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Answer» Correct Answer - A Vasa efferntia are fine cilliated ductules that arise from the seminiferous tubules of testis (where sperms are formed) and open into epididymis which is a mass of long narrow closely coiled tubule lying along the inner side of testis. Epididymis stroes the sperms .Thus, if vasa efferentia get blocked, sperm will not be transported from testes to epididymis. |
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| 931. |
GnRH, a hypothalamic hormone, needed in reproduction acts onA. anterior pituitary gland and stimulates secretion of LH and FSH.B. Posterior pituitary gland and stimulates secretion of oxytocin and FSH.C. posterior pituitary gland and stimulates secretion of LH and relaxin.D. anterior pituitary gland and stimulates secretion of LH and oxytocin. |
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Answer» Correct Answer - A (A) GnRH, a hypothalamic hormone, needed in reproduction, acts on anterior pituitary gland and stimulates secretion of LH and FSH. |
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| 932. |
A morula can be differentiated from blastula inA. absence of yolkB. presence of cavityC. absenceof cavityD. presence of more yolk |
| Answer» Correct Answer - C | |
| 933. |
Relative sizes of egg cell, morula, blastula and gustrula cells areA. Egg cell is the smallest and gastrula cell is the largestB. All are of equal sizeC. Egg cell is the largest and morula cell is the smallest.D. Egg cell is the largest and gastrula cell is the smaller. |
| Answer» Correct Answer - C | |
| 934. |
The cellular layer that disintegrates and regenerates again and again in human skin is:A. Endometrium of uterusB. dermis of skinC. Cornea of eyeD. Endothelium of blood vessels. |
| Answer» Correct Answer - A | |
| 935. |
Nebenkern is part ofA. Human ovumB. Human spermC. FoetusD. Graafian follicle |
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Answer» Correct Answer - B (B) Neubenkern is part of human sperm. |
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| 936. |
Mention the importance of LH surge during menstrual cycle. |
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Answer» Rapid secretion of LH leading to its maximum level during the mid menstrual cycle (14th day) called LH surge induces rupture of Graafian follicle and thereby the release of ovum (ovulation). The ovulation (ovlatory phase) is followed by the luteal phase during which the remaining parts of the Graafian follicle transform as the the corpus luteum. The corpus luteum secretes large amounts of progesterone which is essential for maintenance of the endometrium. Such an endometrium is necessary of implantation of the fertilised ovum and other events of pregnancy. |
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| 937. |
Secretions from which one of the following are rich in fructode,calcium and some enzymes?A. liverB. PancreaseC. Salivary glandsD. Male accessory glands |
| Answer» Correct Answer - d | |
| 938. |
LH surge occurs during phase of menstrual cycleA. Menstrual phaseB. Beginning of proliferative phaseC. Just before end of proliferation phaseD. At the middle of the cycle |
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Answer» Correct Answer - D (D) LH surge occurs during phase of menstrual cycle at the middle of the cycle (`14^(th)` day). |
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| 939. |
which one of the following is incorrect match ?A. Myometrium : Echibits strong contractions during delivery of the babyB. Endometrium : Undegoes cyclical changes during menstrual cycleC. Perimetrium : Serosa of uterusD. Uterus : Birth canal |
| Answer» Correct Answer - D | |
| 940. |
Choose the incorrect statement from the followingA. In birds and mammals internal fertilisation takes placeB. colostrum contains antibodies and nutrientsC. Polyspermy in mammals is prevented by the chemical changes in the sperm surfaceD. In the human female implantation occurs almost seven days after fertilisation. |
| Answer» Correct Answer - C | |
| 941. |
Which represents a condition of higher reduced motilityA. AzospermiaB. PolyspermyC. OligospermiaD. Asthenospermia. |
| Answer» Correct Answer - D | |
| 942. |
The chemical substances released by activated spermatozoa that acts on the ground substances of the follicle cells is known asA. relaxinB. teratogenC. progesteroneD. hyaluronidase |
| Answer» Correct Answer - D | |
| 943. |
Which secretions are produced by spermatozoa at the time of fertilizationA. Fertilizin and spermlysinB. Only spermlysinC. Fertilizin an d antifertilizinD. Antifertilizin and spermlysin. |
| Answer» Correct Answer - D | |
| 944. |
Which secretions are produced by spermatozoa at the time of fertilization?A. Fertilizin and spermlysinB. Only spermlysinC. Fertilizin and antifertillizinD. Antifertilizin and spermlysin |
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Answer» Correct Answer - D (D) Antifertilizin and spermlysin secretions are produced by spermatozoa at the time of fertilization. |
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| 945. |
Which chemical of the egg attracts and holds sperm?A. FertilizinB. AntifertilizinC. AgglutinD. Antiagglutin |
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Answer» Correct Answer - A (A) Fertilizin chemical of the egg attracts and holds sperm. |
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| 946. |
The ganglia of sympathetic and the central nervous system in frog develos from theA. Neural cellB. Neural plate cellsC. Notochord cellsD. Neural crest cells. |
| Answer» Correct Answer - D | |
| 947. |
Write two major functions each of testis and ovary. |
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Answer» Functions of the Testis `implies` They produce male gametes called spermatozoa by the process of spermatogenesis. `implies` The leydig cells of the seminiferous tubules secrete the male sex hormone called testosterone. Testosterone aids the development of secondary sex characteristics in males. Functions of the ovary `implies`They produce female gametes called ova by the process of oogenesis. `implies` The growing Graffian follicles secrete the female sex hormone called estrogen. Estrogen aids the development of secondary sex characteristics in females. |
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| 948. |
A : Synthesis of milk is stimulated by rise in the level of oxytocin R : Oxytocin is released from the adenohypophysis under influence of hypothalamus .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 - D | |
| 949. |
The mammary glands are paired structures that contain the glandular tissue and variable amount of fat.The correct sequence of tissues involved in synthesis and flow of milk areA. Mammary lobes `to` Mammary alveoli `to` Mammary ampulla `to` Mammary duct`to` Lactiferous ductB. Mammary lobes `to` Mammary alveoli `to` Mammary ducts `to` Lactiferous ductC. Mammary lobes `to` Mammary alveoli `to` Lactiferous duct`to` Mammary ampulla `to` Mammary ductD. Mammary alveoli `to` Mannary lobes`to` Lactiferous duct`to` Mammary duct |
| Answer» Correct Answer - B | |
| 950. |
The biochemical procedure used to detect human chorionic gonadotrophin isA. WIDALB. CATC. MRID. ELISA |
| Answer» Correct Answer - D | |