Formation of archenteron starts in ... ... [ MPPMET 2012]
43%
a) Morula
14%
b) Blastula
43%
c) Early gastrula
0%
d) Early neurula
Q.2.
Nereis has ... ... [ JIPMER 1999 ]
67%
a) Stereoblastula
0%
b) Discoblastula
17%
c) Coeloblastula
17%
d) Superficial blastula
Q.3.
Allantois is embryonic membrane found in ... ... [ BHU 1990 ]
0%
a) Mammals
17%
b) Birds
17%
c) Reptiles
67%
d) Birds, mammals and reptile
Q.4.
Fixing up of blastocyst in the wall of uterus is ... ... [ MPPMT 2002 ]
17%
a) Impregnation
0%
b) Placentation
83%
c) Implantation
0%
d) Fertilisation
Q.5.
Which of the cellular layer disintegrate and regenerates again and again in humans ... ... [ MPPMT 2004 ]
67%
a) Endometrium of uterus
0%
b) Dermis of skin
17%
c) Cornea of eye
17%
d) Endothelium of blood vessels
Q.6.
Egg with little yolk is ... ... [ RPMT 1995 ]
0%
a) Alecithal
33%
b) Microlecithal
50%
c) Mesolecithal
17%
d) Polylecithal
Q.7.
Fusion of male pronucleus with female pronucleus is ... ... [ Manipal 2005 ]
60%
a) Amphimixis
20%
b) Conjugation
20%
c) Penetration
0%
d) Transduction
Q.8.
Intestine develops from ... ... [ RPMT 2000 ]
0%
a) Ectoderm
50%
b) Endoderm
0%
c) Mesoderm
50%
d) Pharyngeal pouch
Q.9.
Internal cavity formed by cell division prior to gastrulation is .... ... [ DPMT 2010 ]
0%
a) Enteron
25%
b) Blastopore
50%
c) Blastocoel
25%
d) Coelom
Q.10.
Which extraembryonic membrane in human prevents desiccation of embryo inside uterus? ... ... [ BHU 2012 ]
33%
a) Yolk sac
67%
b) Amnion
0%
c) Chorion
0%
d) Allantois
Q.11.
Which of the following is correct sequence in embryo development. .... [ HPPMT 2005]
0%
a) Cleavage, gastrulation, blastulation
0%
b) Blastulation, cleavage, gastrulation
100%
c) Cleavage, blastulation, gastrulation
0%
d) Gastrulation, blastulation, cleavage
Q.12.
Cleidoic eggs occur in ... ... [ MPPMT 2002 [
0%
a) insects
0%
b) fishes
33%
c) mammals
67%
d) reptiles and birds
Q.13.
Olfactory epithelium develops from ... ... [ MPPMT 1991 ]
0%
a) Embryonic endoderm
67%
b) Embryonic ectoderm
33%
c) Embryonic mesoderm
0%
d) Embryonic mesenchyme
Q.14.
Hormone, human chorionic gonadotropin, is secreted by ... ...
67%
a) Placenta
0%
b) Ovary
33%
c) Anterior pituitary gland
0%
d) Posterior pituitary gland
Q.15.
Pick up correct statement about organs with dual origin from embryonic layer Hypophysis Adrenal glands Sense organs Pancreas ... ... [ BHU 2008 ]
67%
a) 1, 2, 3 correct
0%
b) 1, 2 correct
33%
c) 2, 4 correct
0%
d) 1, 3 correct
Q.16.
Coelom is formed by splitting of ... ... [ RPMT 1995 ]
33%
a) Mesoderm
67%
b) Ectoderm
0%
c) Ectoderm
0%
d) Megaspore
Q.17.
Multicellular, multinucleate, irregular mass of embryo which pass into uterine wall is ... .. [ MHTCET 2009 ]
0%
a) Ectoderm
67%
b) Endoderm
33%
c) Syncytiotrophoblast
0%
d) Amnion
Q.18.
Notochord grows from ... ... [ MPPMT 1991]
0%
a) Neuropore
33%
b) Prechordal plate
0%
c) Hyperchordal rod
67%
d) Chorda-mesoderm
Q.19.
Gastrulation comprises ... ... [ RPMT 2002 ]
33%
a) Morphogenetic movements
0%
b) Differentiation of archenteron
33%
c) Differentiation of three germ layers
33%
d) All the above
Q.20.
Assertion: In humans the gamete contributed by the male determines whether the child produced will be male or female Reason: Sex in human is polygenic trait dependent upon the cumulative effect of some gene on X-chromosome and some on Y-chromosome .... .... [ AIIMS 2005 ]
67%
a) Both Assertion and Reason are true and Reason is the correct explanation of Assertion
33%
b) The Assertion and Reason are true but Reason is not correct explanation of Assertion
0%
c) Assertion is true but, Reason is false
0%
d) Assertion is false but, Reason is true
Q.21.
Coelom is space between ... ... [ JKCMEE 2004 ]
33%
a) Splitted mesoderm
67%
b) Ectoderm and endoderm
0%
c) Ectoderm and mesoderm
0%
d) Body wall and mesoderm
Q.22.
Eggs of placental mammals are ... ... [ MPPMT 1999 ]
0%
a) Homolecithal
67%
b) Alecithal
33%
c) Microlecithal
0%
d) Mesolecithal
Q.23.
Vascular and excretory organs are formed from ... ... [ CPMT 1990 ]
67%
a) Endoderm
0%
b) Mesoderm
33%
c) Ectoderm
0%
d) Mesendoderm
Q.24.
In which organ the bulk is formed of endoderm ... ... [ MPPMET 1990 ]
33%
a) intestine
33%
b) Liver
33%
c) Heart
0%
d) Kidney
Q.25.
Human placenta is ... ... [ AIIMS 1999]
0%
a) Haemochorial
33%
b) Syndesmochorial
33%
c) Yolk sac
33%
d) Haemo-endothelial
Q.26.
During cleavage, what is true about cells? .... ... [ CBSE 1991 ]
33%
a) Nucleocytoplasmic ratio remains unchanged
67%
b) Size does not increase
0%
c) There is less consumption of oxygen
0%
d) The division is like meiosis
Q.27.
Meroblastic cleavage takes place in ... ... [ MPPMT 1991]
0%
a) Hydra
100%
b) Amphioxus
0%
c) Frog
0%
d) Chick
Q.28.
Ontogenetically liver and pancreas are ... ... [ MPPMT 1996 ]
0%
a) Ectodermal
100%
b) Mesodermal
0%
c) Endodermal
0%
d) None
Q.29.
Heart is .... ... [ CPMT 1991 ]
0%
a) Ectodermal
100%
b) Mesodermal
0%
c) Endodermal
0%
d) None of the above
Q.30.
Skeleton and muscles in a vertebrate embryo develop from ... ... [ CPMT 2004 ]
0%
a) Ectoderm
0%
b) Mesoderm
100%
c) Endo-mesoderm
0%
d) Endoderm
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