Q.1
Cavity formed during gastrulation is ... ... [ MPPMT 2010 ]
  • a) Primitive gut
  • b) Gastrocoel
  • c) Archenteron
  • d) All the above
Q.2
Retina, eye lens, brain and skin are formed from ... ... [ CPMT 1998 ]
  • a) Mesoderm
  • b) Ectoderm
  • c) Endoderm
  • d) Both ectoderm and endoderm
Q.3
Some parts developed from ectoderm are ... .. [ CPMT 1990 ]
  • a) Retina, epidermis and brain
  • b) Brain, liver and gills
  • c) Dermis, nerves and lungs
  • d) Spinal cord, epidermis and heart
Q.4
Secondary sexual characters in females develop in response to hormone ... ... [ MPPMT 2002 ]
  • a) Relaxin
  • b) Progesterone
  • c) Estrogen
  • d) Gonadotropin
Q.5
Gastrulation is ... ... [ JIPMER 2004 ]
  • a) cleavage of zygote
  • b) Formation of trophoblast
  • c) Morphogenetic movement
  • d) Gamete formation
Q.6
Type of cleavage is an egg is determined by ... ... [ RPMT 1999 ]
  • a) Amount and distribution of yolk
  • b) Number of egg membranes
  • c) Size and location of nucleus
  • d) Shape and size of sperm
Q.7
Emboly is ... ...
  • a) migration of micromeres into the blastocoel
  • b) migration of macromeres, mesodermal blastomeres into the blastocoel
  • c) migration of endoderm, mesoderm and notochord in the blastocoel
  • d) none of the above
Q.8
Middle piece of mammalian sperm contains ... ... [ AIIMS 1998 ]
  • a) Nucleus
  • b) Vacuole
  • c) Mitochondria
  • d) Centriole
Q.9
In deuterostome second opening forms ... ... [ BHU 2002 ]
  • a) Anus
  • b) mouth
  • c) nose
  • d) both A and B
Q.10
Some mature cells cannot undergo division because ... ... [ Manipal 2005]
  • a)Their genes have become inactive
  • b) They lack centrioles
  • c) They have taken up specific function and undergone differentiation
  • d) They have lost the ability to divide
Q.11
Name different parts of Graafian follicle
  • a) a - membrana granulosa, b - theca interna, c - ovum, d - cumulus oophorus, e-antrum, f-theca externa
  • b) a - theca externa, b - theca interna, c - ovum,d - membrana granulosa, e - antrum, f -cumulus oophorus
  • c) a - theca externa, b - theca interna, c- ovum, d - cumulus oophorus, e - antrum, f - membrana granulosa
  • d) a - membrana granulosa, b - theca interna, c - ovum, d - cumulus oophorus, e - antrum , f - theca interna
Q.12
Which one is correct combination ... ... [ Manipal 2000 ]
  • a) haemoglobin-muscle contraction
  • b) sertoli cells-sperm nutrition
  • c) rods and cones-auditory reception
  • d) cochlea-eye
Q.13
During cleavage, nucleocytoplasmic ratio ( nucleus/cytoplasm) [DPMT 1996]
  • a) increases
  • b) decreases
  • c) remains same
  • d) none of the above
Q.14
Type of placenta present in humans/Rabbit is ... ... [ MPPMT 2002 ]
  • a) Discoidal
  • b) Zonary
  • c) Diffuse
  • d) Cotyledonary
Q.15
The animal in which testes descend into scrotum only during breeding season ... ... [ AFMC 2004 ]
unit-6_ch-6_que_no-135_img_no1.png
  • a) Frog
  • b) Kangaroo
  • c) Shrew
  • d) Bat
Q.16
Ectoderm produces ... ... [ RPMT 1995 ]
  • a) Mesoderm
  • b) Proctodaeum
  • c) Stomodaeum
  • d) Both B and C
Q.17
Ectoderm produces ... .... [ RPMT 1995 ]
  • a) Primary ectoderm
  • b) Primary endoderm
  • c) Primary mesoderm
  • d) Both A and B
Q.18
Presence of massive yolk at one end makes the egg ... ... [ JIPMER 1997 ]
  • a) Telolecithal
  • b) Mesolecithal
  • c) Centrolecithal
  • d) Oligolecithal
Q.19
Which of the following is not the reason for very high load of bilirubin in a new born ... ... [ KCET 2010 ]
  • a) Excessive red blood corpuscles in the new born burst, releasing bilirubin
  • b) Insoluble bilirubin in the intestine is reabsorbed by the blood
  • c) Liver of the new born is too young to cope with the heavy load of bilirubin
  • d) Mother's milk contains a high amount of bilirubin
Q.20
Blastopore occur in ... ... [ Bih PMT 2006 ]
  • a) gastrula
  • b) blastula
  • c) blastocoel
  • d) morula
Q.21
In humans, the embryo is protected in ... ... [ MPPMET 2012 ]
  • a) Peritoneal cavity
  • b) Amniotic cavity
  • c) Pleural cavity
  • d) Allantois
Q.22
Meiosis during sperm formation of Ascaris, was first observed by ... ... [ kerala 2000 ]
  • a) Fleming
  • b) Boveri
  • c) Brauer
  • d) De Vries
Q.23
Two formative movements that take place during gastrulation are ... ... [ DPMT 1996 ]
  • a) Involution and invagination
  • b) Epiboly and emboly
  • c) Invagination and ingression
  • d) Ingression and delamination
Q.24
Which are derivatives of endoderm? [ KCET 2005 ]
  • a) Muscles and blood
  • b) Alimentary canal and respiratory organs
  • c) Excretory and reproductive organs
  • d) Skin and nerve cord
Q.25
Which gland secretes alkaline mucus in urethra to neutralise the acidity of urine ... ... [ CET Chd. 2011 ]
  • a) Prostate gland
  • b) Cowper's gland
  • c) Seminal vesicles
  • d) Preputial glands
Q.26
Which one develops from endoderm ... ... [ BHU 1995 ]
  • a) Nervous system, urinary bladder and eye
  • b) Liver, connective tissue and heart
  • c) Thymus, spinal cord and brain
  • d) Liver, pancreas and thymus/thyroid
Q.27
Establishment of polarity ( anterior/ posterior, dorsal/ventral, medial/lateral) is called ... ... [ CPMT 2005]
  • a) Anamorphosis
  • b) Organizer phenomenon
  • c) Pattern formation
  • d) Axis formation
Q.28
Egg with peripheral cytoplasm around the yolk is ... .... [ AIIMS 1998]
  • a) Isolecithal
  • b) Microlecithal
  • c) Telolecithal
  • d) Centrolecithal
Q.29
Cavity of gastrula is ... ... [ CMC 2002 ]
  • a) Coelom
  • b) Blastocoel
  • c) Archenteron
  • d) Chorion
Q.30
Which one is wrong .... ....
  • a) Amnion is the outer layer containing amniotic fluid that acts as a shock absorber for soft embryo
  • b) Amnion and chorion develop as upward projecting folds of somatopleure called amniotic folds
  • c) In mammals, allantois is not excretory in function
  • d) Yolk sac is a foetal membrane that helps in nourishment of embryo in general
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