Manipal 1995; MP PMT 1996; CPMT 2004
Q251
Errorless
7. Implantation and Gastrulation
MCQ
The skeleton and muscles originate in the development from or During embryonic development endoskeleton and muscles develop from which germinal layer
A.
Ectoderm
B.
Endoderm
C.
Mesoderm
D.
Yolk plug
CPMT 1995
Q252
Errorless
8. Neurulation and Organogenesis
MCQ
Spleen develops from
A.
Ectoderm
B.
Mesoderm
C.
Endoderm
D.
None of the above
AFMC 1995
Q253
Errorless
8. Neurulation and Organogenesis
MCQ
When mouth develops from blastopore, the organism is called
A.
Deutrostomia
B.
Protostomia
C.
Blastostomia
D.
None of these
MP PMT 1995
Q254
Errorless
9. Extra embryonic membrane
MCQ
The foetal membrane which is the source of first blood corpuscle to enter the circulation of the embryo is called
A.
Amnion
B.
Chorion
C.
Trophoblast
D.
Yolk sac
NCERT; MP PMT 1995, 2009
Q255
Errorless
9. Extra embryonic membrane
MCQ
Urinary bladder of the embryo is or Which is the urinary bladder of child placed in the womb
A.
Yolk sac
B.
Allantois
C.
Amnion
D.
Chorion and allantois both
AFMC 1995
Q256
Errorless
13. Critical Thinking
MCQ
During the development of embryo which of the following occur first
A.
Differentiation of tissue
B.
Differentiation of cells
C.
Differentiation of organs
D.
Differentiation of organ system
CPMT 1995
Q257
Errorless
13. Critical Thinking
MCQ
Which of the following structure is found in blastula
A.
Segmentation cavity
B.
Notochord
C.
Gill
D.
Tail
RPMT 1995
Q258
Errorless
13. Critical Thinking
MCQ
Which of the following structure originates from ectoderm
A.
Stomodaeum
B.
Proctodaeum
C.
Mesodaeum
D.
Both
AIIMS 1995
Q259
Errorless
15. Assertion and Reason
MCQ
Assertion : The development in cockroach is heterometabolous metamorphosis.
Reason: Young ones resemble the adults in all characters.
A.
If both assertion and reason are true and the reason is the correct explanation of the assertion.
B.
If both assertion and reason are true but reason is not the correct explanation of the assertion.
C.
If assertion is true but reason is false.
D.
If the assertion and reason both are false.
E.
If assertion is false but reason is true.
MP PMT 1994, 95
Q260
Errorless
1. Male reproductive system
MCQ
Cowper's gland is present in
A.
Cockroach
B.
Rabbit
C.
Earthworm
D.
Frog
MP PMT 1994; CBSE PMT 2008
Q261
Errorless
1. Male reproductive system
MCQ
In humans, at the end of the first meiotic division, the male germ cells differentiate into be
A.
Spermatids
B.
Spermatozonia
C.
Primary spermatocytes
D.
Secondary spermatocytes
MP PMT 1994
Q262
Errorless
3. Gametogenesis
MCQ
The breakage of the membrane surrounding the acrosome in a mammalian sperm is
A.
Activation
B.
Cavitation
C.
Agglutination
D.
Capacitation
MP PMT 1994
Q263
Errorless
5. Fertilization
MCQ
The final event in the process of fertilization is
A.
Fusion of gametes
B.
Egg activation
C.
Amphimixis
D.
Organizational change in egg cytoplasm
CBSE PMT 1994; AFMC 1999
Q264
Errorless
6. Cleavage
MCQ
What is true about cleavage in the fertilised egg in humans [NCERT Pg. No. 36]
A.
It is meroblastic
B.
It starts while the egg is in fallopian tube
C.
It is identical to the normal mitosis
D.
It starts when the egg reaches in uterus
CBSE PMT 1994; CPMT 2002
Q265
Errorless
6. Cleavage
MCQ
Coelom derived from blastocoel is known as
A.
Pseudocoelom
B.
Enterocoelom
C.
Haemocoel
D.
Schizocoel
KCET 1994; BHU 1995; CPMT 2000
Q266
Errorless
6. Cleavage
MCQ
Eggs of reptiles and birds are Or The egg of frog is [MP PMT 1998, 2006; CPMT 1999; RPMT 2000; BVP 2001; Pb. PMT 2004]
A.
Alecithal
B.
Isolecithal
C.
Telolecithal
D.
Homolecithal
MP PMT 1994
Q267
Errorless
6. Cleavage
MCQ
Cleavage divisions differ from normal mitotic divisions in that
A.
There is no nuclear division during cleavage
B.
There is no division of the cytoplasm during cleavage
C.
There is no period of growth in between the divisions (d). The division of the cutonlasm follows nuclear divisions
D.
The division of the cytoplasm follows nuclear divisions
MP PMT 1994
Q268
Errorless
7. Implantation and Gastrulation
MCQ
The mammalian primitive streak gives rise to
A.
Ectoderm
B.
Mesoderm
C.
Endoderm
D.
Germ layers
MP PMT 1994
Q269
Errorless
7. Implantation and Gastrulation
MCQ
During the development of an embryo, migration and rearrangement of cells lead to a pattern formation known as
A.
Epiboly
B.
Emboly
C.
Involution
D.
Gastrulation
CPMT 1994
Q270
Errorless
10. Placenta
MCQ
The layer of uterus which becomes much eroded due to placental villi is known as
A.
Endothelium
B.
Endometrium
C.
Endoderm
D.
Trophoblast
MP PMT 1994
Q271
Errorless
13. Critical Thinking
MCQ
Chorion is found
A.
Inside the amnion
B.
Outside the amnion
C.
Inside the allantois
D.
Inside the yolk sac
MP PMT 1994
Q272
Errorless
13. Critical Thinking
MCQ
The chemical substance found in the surface layer of cytoplasm of spermatozoa is
A.
Fertilizin
B.
Agglutinin
C.
Antifertilizin
D.
Hyaluronidase
MP PMT 1994
Q273
Errorless
13. Critical Thinking
MCQ
Fertilization restores
A.
Haploidy from diploidy
B.
Diploidy from polyploidy
C.
Polyploidy from diploidy
D.
None of these
MP PMT 1994
Q274
Errorless
13. Critical Thinking
MCQ
Holoblastic cleavage may occur in eggs which are
A.
Oligolecithal only
B.
Mesolecithal only
C.
Macrolecithal only
D.
Oligolecithal & mesolecithal
MP PMT 1994
Q275
Errorless
13. Critical Thinking
MCQ
The solid mass of cells formed at the end of cleavage of mammalian egg is Or The stage transferred into the uterus after induced fertilization of ova in the laboratory is [NEET (Karnataka) 2013]
A.
Blastula
B.
Morula
C.
Blastocyst
D.
Blastodisc