Test on Reproduction

1. Testosterone is synthesized in(a) Sertoli cells(b) Interstitial cells (c) Leydig calls (d) Both b and c2. Mature sperms are stored in the(a) seminiferous tubules(b) Vas deferens (c) epidermis (d) Seminal vesicles3. The female organ equivalent toGlans Penis of man is (a) vestibule (b) hymen (c) vagina(d) clitoris4. How many mature eggs are typically produced by each ovary of a non-pregnant woman each year(a) 6 (b) 12 (c) 24 (d) 525. Which of the following is an example of short day plant ? (a) Cereals and tobacco(b) Chrysanthemum (c) Xanthium(d) All of these6. The size of the human zygote is—mm (a) 0.25 (b) 1.00 (c) 0.15 (d) 0.057. If a primary spermatocyte has 26 chromosomes; then secondary spermatocyte will have (a) 26 (b) 13 (c) 104 (d) 528. In gametogenesis meiosis occurs during -- phase (a) maturation (b) multiplication(c) growth (d) none above9.Hyalurodinase is stored in mammalian sperm in (a) acrosome (b) centrosome(c) neck (d) mid-piece10. The structure realeased every month during mentrual cycle is (a) ovum(b) oogonium(c) primary oocyte(d) secondary oocyte11.If the integuments are pierced by the pollen tube during fertilization, it is(a) porogamy (b) mesogamy (c) chalazogamy (d) siphonogamy12. Outermost layer of the pollen is formed from endothecium and is madeup of (a) pectocellulose (b) lignocellulose (c) sporopollenin (d) pollenkit13. Vivipary is shown by (a) Cocos (b) squash (c) Rhizophora(d) all above14. Caruncle of abuminous dicot seed (as Ricinus) is derived from (a) cotyledon (b) embryo (c) integument (d) peduncle15. Fossil pollen grains help to explore petroleum due to presence of most resistant protein in exine.(a) rubisco (b) sporopollenin(c) cyclic AMP (d) vitellin16 Tapetal nuclei are (a) haploid (b) aneuploid (c) polyploid (d) lacking genome completely17. First androgenic haploid of Nicotiana and Datura was raised by (a) Nawaschin (b) Guha (c) Maheshwari (d) both b and c18. Male gametophyte of angiosperms is (a) anther lobe (b) pollen before germination (c) pollen after germination (d) embrysac19. Nurse tissue of ovule is (a) nucellus (b) chalaza (c) hilum (d) micropyle20. —— is an example for the bisporic embryosac. (a) Polygonum (b) Allium (c) Peperomia (d) Idoxa21. Which of the following has only four nuclei in its embryosac ? (a) Peperomia (b) Papaya (c) Oenothera (d) Pogostemnon. 22. Tetrasporic embryosac is one in which (a) four micspores form the embryosac (b) four megaspore mother cells form embryosac (c) four megaspores form the embryosac (d) four microspore mother cells form the embryosac23.Sporogenus tissue gets its nourishment from layer of anther wall which can release not only enzymes but also hormones(a) middle layers (b) epidermis (c) tapetum (d) endothecium24. Branched pollen tube is characteristic of (a) monocots (b) dicots (c) advanced families of dicots (d) gymnosperms25. Graafian follicle are found in the (a) ovary of mammal(b) ovary of frog(c) testes of mammal(d) oviduct of mammal26. A gland associated with the male reproductive organs of mammals is(a) phallic gland(b) prostate gland(c) mushroom gland(d) conglobate gland27. As a result of metabolism in mammalian embryo(a) no wastes are produced(b) wastes are absorbed by the embryo(c) wastes are eliminated through mother's body(d) accumulated wastes are eliminated after birth28. Type of placenta in human beings(a) syndesmochorials(b) haemochorials(c) epiteliochorials(d) haemoendothelial29. Mammalian ovum is fertilized in(a) vestibule (b) vagina(c) uteri (d) fallopian tubule30. The expulsion of completely developed foetus from the uterus is known as(a) ovulation(b) gestation(c) oviposition(d) parturition31. Clitoris in female mammals is homologous to (a) penis (b) testes (c) prostate (d) epididymis32. In most of mammals the testes are extra abdominal in scrotal sacs because (a) no sperm will be produced if testes are abdominal (b) there is little space in the abdominal cavity for the testes (c) in the scrotum the temperature is slightly lower which helps in sperm formation (d) all of these33.Gestation period in human beings is for (a) 28-30 days (b) 265-280 days (c) 270-290 days (d) 210-250 days34. Placenta is (a) a cord that connects the 'foetus with wall of mother's uterus (b) a part of mother's uterine wall through which exchange of materials occurs between mother and foetus (c) a part of foetus through which exchange of material takes place between foetus and mother (d) chorionic villi of foetus and a part of mother's uterine wall through which chemical exchange between foetus and mother occurs35.’Sertoli cells' are located in (a) caput epididymis (b) cauda epididymis (c) seminiferous tubule (d) seminal vesicle36. The ovum is enclosed in perforated membrane called (a) germinal epithelium (b) vitalline membrane (c) zona pellucida (d) zona radiata37. The testes in mammals descend scrotal sacs after birth. If these fail to do so, the condition is called (a) orchidectomy (b) cryptochydism (c) hypogonadism (d) eunuchoidism38.Menopause (at about 45-50 years) is stage in females when (a) menstruration is on peak (b) reproductive capacity ends (c) mother can bear only boys (d) none of these39. In menstrual phase level of oestrogen is high and it lasts for (a) 3-4 days(b) 7-9 days(c) 3-10days(d) 7 days40. Menstruation occurs in(a) all reptiles(b) all mammals(c ) all primates(d) marsupials41.When oviduct in female is removed out, it is called (a) abortion (b) vasectomy(c) tubectomy (d) insemination42. In reproduction of a test tube baby (IVF)(a) fertilization is done outside body(b) foetus is grown in a test tube(c) fertilization is done inside mother's body(d) none of these43.Location ofLeydig cells and secretions are (a) ovary, estrogen(b) liver, cholesterol (c) testes, testosterone (d) pancreas, glucagon44. Human eggs are(a) microlecithal(b) alecithal (c) macrelecithal(d) mesolecithal45. If the vasa deferens of a man is surgically disconnected(a) sperms in the semen will be without nuclei(b) semen will be without sperms(c) spermatogenesis will not takes place(d) sperms in semen will be no more motile46. Which part of the ovary in mammals acts as an endocrine gland afterovulation ?(a) Vitelline membrane (b) Graafian follicles(c) Stroma(d) Germinal epithelium47. Which two factors primarily affect the developmental phase of growth of plants?(a) Light and temperature(b) Rainfall and temperature(c) Light and wind(d) Temperature and relative humidity48. A plant placed near a window bends outwards because(a) It is up is able to get more oxygen(b) It is up and able to obtain more light(c) It is up is able to receive necessary warmth(d) The auxin contents on the shadow side is higher than that on the lighter side and as a result the shaded side elongate more than the cells on the illuminated side and the tip bends outwards49. Which of the following statement is false with respect to application of auxins?(a) Control direction of growth of plants(b) Inhibits lateral bud growth(c) Initiate and promote cell division actively particularly in tissue culture(d) Produce hyperelongation effect50. Leaf fall occurs on abscission layer is formed when the content of(a) auxin increases(b) auxin decreases(c) abscisic acid increases(d) both b and c51. The natural plant hormones were first isolated from(a) corn germ oil and human urine (b) cotton fruits, spinach leaves and rice plants(c) Avena coleoptile spinach leaves and the fungus Gibberella(d) human urine and rice seedlings52. Cytokinin is a hormone whose main function is(a) induction of cell division and delay in senescence(b) to take part in cell division(c) to cause cell movements(d) to cause dormancy53.Which of the following factors influence the process of flowering ?(a) Acidity of soil(b) Water in the soil(c) Amount of green pigment(d) Photoperiod54 One of the following combination is suitable for fruit ripening(a) 80% C 2H 4 and 20% C03(b) 80% C02 and 20% CH2 (c) 80 % CH4 and 20% C02 (d) 80% C02 and 20% 0255. The chemical structure of naturally occuring auxin is very much similar to the structure of(a) phosphate(b) pectin (c) adenosine monophosphate(d) tryptophan56. Which one among the following chemicals is used for causing defoliation of forest trees ? (a) 2, 4 DichIrophenoxy acetic acid(b) AMO 1618 (c) phosphon D(d) Malic hydrazide57. The rate of stem growth can be measured by(a) potometer (b) auxanometer (c) osmometer (d) hydrometer.58. During severe leaf fall one ofthe growth hormone regulates the process(a) I AA(b) ABA (c) Ethylene(d) Kinetin59.Movements induced in plants by external stimulus is(a) tactic (b) tropic (c) nastic (d) all above60. Phytochrome is a pigment which absorbs (a) blue light (b) red and far red light (c) blue (d) green light61. The level of one of the following increases during water stress (a) Ethylene(b) Abscisic acid(c) indole-3-acetic acid(d) gibberellins62. A plant hormone used for inducing morphogenesis in tissue culture is (a) Auxin (b) ethylene(c) Cytokinin (d) Both a and c63. Usual shape of growth curve is (a) linear(b) inverted bell shaped(c) sigmoida (d) zig zag64. The term 'skototropism' refers to response to (a) darkness (b) light (c) water (d) touch65. Most of the plant’s auxin occurs in(a) leaves (b) lateral buds (c) shoot apex (d) root apices66. An increase in turgor pressure, which moves leaves and flowers, occurs in response to changes in(a) amyloplast position (b) phytochrome structure(c) position of trichomes (d) concentration of potassium ions67. The movements of hairs of insectivores as Drosera is an example of (a) thermotropism (b) thigmotropism(c) chemotropism (d) thigmonasty68. Flowering in short day plants is induced by(a) IAA (b) GA (c) kinetin (d) ethylene69. Which of the following fungus is associated with the discovery of gibberellins ?(a) Fusarium moniliforme(b) Fusarium solanii (c) Fusarium oxysporum (d) Fusarium longipes70.Touch of induced closure of leaflets in Mimosa pudica is the case of (a) Siesmonasty (b) Phototropism(c) Thermotropism (d) Thigmotropism71. One of the following controls, the flowering in long day plants and sex expression in certain species(a) GA (b) IAA (c) CK(d) Antiauxins72. The endosperm nucleus gives rise to a number of free nuclei which remain in the peripheral layer of embryosac cytoplasm surrounding a large central vacuole in case of (a) Cocos (b) Capsella bursa-pastoris(c) Datepalm (d) all above73.' Apomixis' term was coined by (a) Leroy (b) Haberlandt (c) Maheshwari (d) Winkler74. Recurrent apomixis is (a)parthenogenesis (b)diploid parthenogenesis (c)haploid parthenogenesis (d)none of these.75. Diploid parthenogenesis is seen in(a) Allium cepa (b) Taraxaccum albidum(c) Crepis (d) all above76.In the post-fertilization changes within the ovule, the oospores forms the ------- while the fertilized fusion nucleus (product of triple fusion) develops the ----- respectively (a) endosperm, embryo (b) embryo, endosperm (c) nucellus, embryo (d) embryo and nucellus77. In late 1950s F.C. Steward experimented on the following plant and confirmed the principal of totipotency.(a) Carrot (b) Orange (c) Tobacco (d) Brinjal 78. The angiospermic endosperm, except in special cases is a triploid (3n) tissue as it is a product of triple fusion involving double fertilization. It is, thus, distinct from the endosperm of gymnosperms and heterosporous pteridophytes where the endosperm is a(a) diploid before fertilization(b) simple haploid (n) tissue of the gametophyte not involving any complication like polar fusion or fertilization(c) polyploid formed after simple fertilization(d) haploid formed after fertilization79. The term 'xenia' was coined by(a) Swingler(b) Maheshwari (c) Winkler(d) Focke80. The ’nekrohormone theory’ for the induction of polyembryony was proposed by(a) Leroy(b) Haberlandt (c) Maheshwari (d) Winkler81. Which one of the following is not true about glucobrassicin ? (a) It is inactive in the straight-growth test and active in the Avena curvature bioassay(b) It was first of all isolated from the bark of mango tree(c) These compounds are members of mustard oil glucosides of glucosinolates (d) all of these82. Adhesion of scion and stock is very important for a successful graft, which of the following earliest event is towards good graft ? (a) Production of plasmodesmata in the cells at the interface of ascion and stock (b) Coordinated differentiation of vascular tissue between the two (c) Production of callus between the two (d) regeneration of epidermis and cortex over the union of the two 83. If synergids or antipodals make the embryo it is (a) apospory (b) Apomixis (c) amphimixis (d) parthenogenesis84. Recurrent Apomixis is (a) parthenogenesis (b) diploid parthenogenesis (c) haploid parthenogenesis (d) none above85. Adventive embryogeny is commonly found in (a) mango (b) citrus(c) Zizyphus (d) all above86. After culturing Anther few diploid plants got along with haploids; Which part might have formed diploid embryos ?(a) Vegetative pollen cell (b) Cells of anther wall (c) Generative cell of pollen (d) Intine of pollen wall87. Nurse tissue technique to raise single-cell clone was developed by (a) Konar (b) Muir (c) Heberlandt(d) Steward88.Caruncle is derived from(a) integument (b) perisperm (c) cotyledon (d) funiculus89.Umbilical cord is madeup of (a) reticular fibres (b) connective tissue cells(c) mucoid connective tissue (d) all above90. Nuclear endosperm is (a) found in Helobials (b) liquid of Cocos (c) of Adoxa (d) of Peperomia91. Formation of 50 zygotes in rice require ... number of meiosis.(a) 59 (b) 100 (c) 99 (d) 6392. Gymnosperms have typically .........ovules (a) campylotropous (b) anatropous (c) circinotropous(d) orthotropous93. Hekrogamy favours (a) allogamy (b) geitonogamy (c) xenogamy (d) all above94. Musa vegetatively propagates by (a) leaves (b) bulbils (c) ratoon (d) rhizome 95. Exine of microspore of dicots is (a) cellulose (b) chitin (c) sporepollenin (d) lignin96. Vivipary is most characteristic of plants with.........of more in their seeds.(a) abscissic acid (b) IAA(c) water (d) cytokinin97. Unusal set of seeds amongst dicot are of (a) Cuscuta (b) loranthaceae (c) compositae (d) all above98. Anther wall has 126 chromosomes in an angiosperm its endosperm has ....chromosomes (a) 252(b) 378(c) 63(d) 18999.Onset of menstruation is due to (a) fall in level of progesterone(b) increase in oestrogen level(c) increase in FSH(d) decrease in oxytocin level100. The spermatogenesis phase of maturation involves(a) the formation of spermatogonia from genocytes through mitosis(b) the growth of spermatogonia into primary spermatocyte(c) the formation of oogonia from the spermatocytes through meiosis(d) the formation of spermatids from primary spermatocytes through meiosis