Zoology Notes for B SC M SC CSS PMS

(1) “Chiasma” formation could be seen first time in the following stage/sub stage of Meiosis:
(a) Leptotene
(b) Zyototene
(c) Pachytene
(d) Diplotene
(e) None of these

(2) In protein synthesis each triplet code binds itself with one:
(a) Leptotene
(b) Zyototene
(c) Pachytene
(d) Diplotene
(e) None of these

(3) For the rapid production of antibody in the precipitance test involving a rabbit one of the following animals could be used.
(a) Frog
(b) Lizard
(c) Fowl
(d) None of these

(4) In Drosophila very rarely father transmit his sex-linked trait to his normal son (in a cross of white eyed female with red eyed male):
(a) In the case of primary non-disjunction
(b) In the case of secondary non-disjunction
(c) In the case of a normal cross
(d) None of these

(5) 13:3 Ration in “F2” is obtained in the case of:
(a) Complementary genes for colours in corn
(b) Coat colours in rodents
(c) In epistatic genes
(d) None of these

(6) Crossing over rarely or never takes place in the male of:
(a) Mice
(b) Poultry
(c) Man
(d) Drosophila
(e) None of these

(7) XXY individual in Dropophila is phenotypicaly:
(a) Male
(b) Female
(c) Inter sex
(d) None of these

(8) Fossils of which of these first living organisms were found?
(a) Protozoan
(b) Algea
(c) Virus
(d) None of these

(9) Which of these are exclusively functional proteins?
(a) Hormones
(b) Enzyme
(c) Plasma
(d) None of these

(10) Phytogeny represents the history of an organism:
(a) Evolutionary
(b) Embryonic
(c) Both ‘a’ and ‘b’
(d) None of these

(11) Sickle Cell trait is found in:
(a) Homozygous
(b) Heterozygous
(c) Both ‘a’ and ‘b’
(d) None of these

(12) The first living and respiring organism on earth were:
(a) Aerobes
(b) Anacrobes
(c) Both ‘a’ and ‘b’
(d) None of these

(13) The major portion of digestion takes place in the:
(a) Stomach
(b) In the small intestine
(c) In the large intestine
(d) None of these

(14) Practically all absorption of digested food occurs in:
(a) Large intestine
(b) Small intestine
(c) Both ‘a’ and ‘b’
(d) None of these

(15) Sibling species are produced as a result of:
(a) Allopatric speciation
(b) Sympatric speciation
(c) Both ‘a’ and ‘b’
(d) None of these

(16) In the days just after its formation the earth had:
(a) Reducing atmosphere
(b) Oxidative atmosphere
(c) Both ‘a’ and ‘b’
(d) None of these

(17) Zygotes containing “XY” are females in:
(a) Drosophila
(b) In moths
(c) In grasshoppers
(d) None of these

(18) The “Y” Chromosomes is sexually neutral in:
(a) Man
(b) In Drosophila
(c) In moth
(d) None of these

(19) Marsupial are found in:
(a) Only Australian region
(b) In near arctic and Neotropical regions
(c) Both ‘a’ and ‘b’
(d) None of these

(20) In which stage of Meiosis Cento mere of each dyad divides?
(a) Metaphase I
(b) Metaphase II
(c) Anaphase I
(d) Anaphase II
(e) None of these

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