12. The circulii of the cycloid scales are usedto determine the:
a) Nutritious value of fish b) Sex of fish
c) Viability of fish d) Age of the fish
13. Kidney in chondrichthyes is:
a) Mesonephric b ) Opisthonephric
c) Metanephric d) Pronephric
14.Contra-decidous placenta is characteristic
of:
a) Elephant
b) Tiger
c) Bandicoot
d) Cow
15. Brain in vertebrates is the enlarged:
a) Anterior end of dorsal nerve cord
b) Posterior end of dorsal nerve cord
c) Anterior end of ventral nerve cord
d) Posterior end of ventral nerve cord
16. In vertebrates, the pharyngeal gill slits are not more than
a) 6 pairs
b) 7 pairs
c) 8 pairs
d) 9 pairs
17. In Eutheria, if the fertilized ovum is
implanted in the uterine wall, then further
development of the foetus cannot occur:
a) Without the formation of placenta
b) In the presence of progesterone
c) In the presence of foetal membranes
d) With mother's hormones
18. Acrosomal enzymes in a mammalian
sperm originate from:
a) Peroxysomes b) Lysosomes
c) Microsomes d) Mitochondria
19. Which of the following is a vital dye used
to observe the embryonic cell movement
during gastrulation?
a) Janus green b) Toluidine blue
c) Eosin
d) Alcian blue
20. The mammalian sperms achieve fertilizingcapacity in the:
a) Seminferous tubules
b) Epididymis
c) Vas deferens
d) Female genital tract
Answers
12. The circulii of the cycloid scales are usedto determine the - Age of the fish.
13. Kidney in chondrichthyes is- Opisthonephric
14. Contra-decidous placenta is characteristic
of -Bandicoot
15. Brain in vertebrates is the enlarged -Anterior end of ventral nerve cord
16. In vertebrates, the pharyngeal gill slits are not more than - 7 pairs
17. In Eutheria, if the fertilized ovum is
implanted in the uterine wall, then further
development of the foetus cannot occur- Without the formation of placenta
18. Acrosomal enzymes in a mammalian
sperm originate from - Lysosomes
19. 12. The circulii of the cycloid scales are usedto determine the - Age of the fish.
13. Kidney in chondrichthyes is- Opisthonephric
14. Contra-decidous placenta is characteristic
of -Bandicoot
15. Brain in vertebrates is the enlarged -Anterior end of ventral nerve cord
16. In vertebrates, the pharyngeal gill slits are not more than - 7 pairs
17. In Eutheria, if the fertilized ovum is
implanted in the uterine wall, then further
development of the foetus cannot occur- Without the formation of placenta
18. Acrosomal enzymes in a mammalian
sperm originate from- Lysosomes
19. Which of the following is a vital dye used
to observe the embryonic cell movement
during gastrulation
- Eosin
20. The mammalian sperms achieve fertilizingcapacity in the-
Female genital tract
(12) The circulii of the cycloid scales are used to determine the d) Age of fish
(13) Kidney in Chondrichthyes is d) Pronephric
(14) Contra deciduous placenta is characteristic of c) Bandicoot
(15) Brain in vertebrates is the enlarged a) Anterior end of the dorsal nerve cord
(16) In vertebrates, the pharyngeal gill slits are not more than 9 pairs
(17) In Eutheria if the fertilized ovum is implanted in the uterine wall, then further development of the foetus cannot occur a) without the formation of the placenta
(18) Acrosomal enzymes in a mammalian sperm originate from a) Peroxysomes
(19) a) Janus green is the dye used to observe the embryonic cell movement during gastrulation.
(20) The mammalian sperms achieve fertilizing capacity in the d) Female genital tract.