Zoology Final VST PDF Past Paper

zoology 1.Answer all the questions The _________ is a temporary organ that connects a mammalian mother to its foetus. a.Placenta b.Chorion c.Endometrium d.None of the above 2.Fertilization takes place in human : (a) In uterus (b) In vagina (c) In ovary (d) In fallopian tubes 3.Ovulation regulate by...

zoology 1.Answer all the questions The _________ is a temporary organ that connects a mammalian mother to its foetus. a.Placenta b.Chorion c.Endometrium d.None of the above 2.Fertilization takes place in human : (a) In uterus (b) In vagina (c) In ovary (d) In fallopian tubes 3.Ovulation regulate by which hormone: (a) TSH (b) ACTH (c) ADH (d) FSH and LH 5.The uterus is single and it is also called : (a) Fimbrae (b) Isthmue (c) Ampulla (d) Womb 6.Which kind of therapy was given in 1990 to a four year old girl with Adenosine Deaminase deficiency (ADA)? (a) Gene therapy (b) Chemo therapy (c) Immunotherapy (d) Radiation therapy 7.The two polypeptides of human insulin are linked together by________ (a) Phosphodiester bond (b) Covalent bond (c) Disulphide bridges (d) Hydrogen bonds 8.In Bt Cotton, the Bt toxin present in plant tissue as protoxin is converted into active toxin due to__________ (a) Alkaline PH of the insect gut (b) Acidic pH of the insect gut (c) Action of gut microorganism (d) Presence of conversion factors in insect gut 9.Smack’ is a drug obtained from the (a) latex of Papever somniferum (b) leaves of Cannabis saliva (c) flowers of Datura (d) fruits of Erythroxyl coca. 10.The substance produced by a cell in viral infection that can protect other cells from further infection is (a) serotonin (b) colostrum (c) interferon (d) histamine. 11.Antibodies present in colostrum which protect the new born from certain diseases is of (a) IgG type (b) IgA type (c) IgD type (d) IgE type. 12.Haemozoin is a (a) precursor of haemoglobin (b) toxin released from Streptococcus infected cells (c) toxin released from Plasmodium infected cells (d) toxin released from Haemophilus infected cells. 13.In Drosophila an organism with the genetic composition AA+XXY will be a normal female. What will be the case for mammal? a) Normal female b) Normal male c) Klinefelter d) Turner 14The gene for sex determination in mammals is _________ and it is located in ___________ a) MAT, Y b) SRY, Y c) MAT, X d) SRY, X 15.Which of the following is wrong for sex chromosome? a) X chromosome is larger than Y b) Female human are homozygous c) Y chromosome carries TDF d) All genes present on Y chromosome are unique to it 16.Which of the following is ART? (a) IUDs (b) GIFT (c) ZIFT (d) Both (b) & (c) 17.The correct surgical procedure as a contraceptive method is (a) ovariectomy (b) hysterectomy (c) vasectomy (d) castration. Group -B 2*4=8 write short note of the following (answer any 4) 1.Sperm 2.partirution 3.contraceptive 4.Restriction enzyme 5.Pbr322 6.Turners syndrome Group -C 5*2=10 Answer any 2 questions 1.what is Spermatogenesis? Explain the mechanism of Spermatogenesis. 2. Notes on sex determination of human,birds and honey bee. 3. what is sex linked inheritance and discuss the phenomenon with example of Colours blindness. 4. write note on male reproductive system in human being.