Class 12 Biology MCQs Chapter – 3
81. Which is absent in male ?
( A ) Bulbourethral glands
( B ) Bartholin’s glands
( C ) Prostate glands
( D ) Cowper’s glands
Answer-( B )
82. Cervix occurs in :
( A ) Kidney
( B ) fallopian tube
( C ) between body of uterus and vagina
( D ) epididymis
Answer-( C )
83. Estrogen is secreted by :
( A ) corpus luteum
( B ) membranous granulosa of Graffian follicle
( C ) germinal epithelium of ovary
( D ) pitituary Gland
Answer-( B )
84. Hysteroctomy is surgical removal of :
( A ) Vagina
( B ) Oviduct
( C ) Uterus
( D ) Ovary
Answer-( C )
85.Clitoris in Human female is :
( A ) homologous to penis of male
( B ) analogous to penis of male
( C ) vestige al structure
( D ) homologous to prostate
Answer-( A )
86. Mammary glands are modified :
( A ) oil gland
( B ) sweat gland
( C ) cowper’s gland
( D ) bertholin’s gland
Answer-( B )
87. Life span of ovuU is :
( A ) 48 hours
( B ) 12 hours
( C ) 24 hours
( D ) 8 hours
Answer-( C )
88. The endometrium is the lining of :
( A ) Bladder
( B ) Vagina
( C) Uterus
( D ) Oviduct
Answer-( C )
89 . In female, gland homologous to prostate band of male is :
( A ) Perineal gland
( B ) Milk gland
( C ) Paraurethral gland
( D ) Cowper’s gland
Answer-( C )
90. Aria is edible part of
( A)Annona
( B ) Apple
( C ) Orange
( D ) All of these
Answer-( A )
91. Hermaphrodite organism is
( A ) Snake
( B ) Hen
( C ) Both (A) and (B)
( D ) Earthworm
Answer-( D )
92. Which one is diploid structure ?
( A ) Sperm
( B ) Ovum
( C ) Zygote
( D ) of these
Answer-( C )
93. Hydrophilic pollination occurs in
( A ) Eichornea
( B ) Lotus
( C ) Hydrilla
( D ) Both (A ) and (B )
Answer-( C )
94. The total number of eggs produced by a healthy human female during life time :
( A ) 4000
( B ) 400
( C ) 40
( D ) 365
Answer-( B )
95. The lens and the retina of the vertebrate eye are developed from :
( A ) ectoderm only
( B ) endoderm only
( C ) partly from ectoderm and partly from endoderm
( D ) mesoderm only
Answer-( A )
96. Digestive system , liver and trachea are formed from
( A ) archenteron
( B ) blastocoel
( C ) endoderm
( D ) ectoderm
Answer-( C )
97. The mesoderm gives rise to all the following structures in a fully developed animal except :
( A ) muscular system
( B ) nervous system
( C ) circulatory system
( D ) gonads
Answer-( B )
98. Blood flowing in umbilical cord of mammalian embryo is :
( A ) 50 % maternal and 50 % foetal
( B ) 100 % foetal
( C ) 100 % maternal
( D ) 75 % maternal and 25 % foetal
Answer-( B )
99. Before implantation the embryo obtains its nutrition from :
( A ) Ovary
( B ) oviducts
( C ) uterine secretions
( D ) its own yolk
Answer-( D )
100. Bartholin’s glands occur on :
( A ) Sides of vas deferens
( B ) Sides of vagina
( C ) Tail of birds
( D ) Head of amphibians
Answer-( B )
