NEET Biology MCQ - Embryonic Development Mcq - Quiz-4 Solution

Q.1.

Active inrolling of endodermal and mesodermal cells into interior of embryo is ... [ JIPMER 1997 ]

50%
a) ingression
0%
b) involution
0%
c) inversion
50%
d) epiboly

Explanation

Q.2.

Notochord, skeletal system and dermis of skin are derived from ... ... kcet 2008 ]

20%
a) Mesoderm
60%
b) Endoderm
0%
c) Ectoderm
20%
d) All the above

Explanation

Q.3.

total cleavage is possible in egg ... ... [ MPPMT 1994 ]

40%
a) isolecithal
60%
b) mesolecithal
0%
c) oligolecithal
0%
d) telolecithal

Explanation

Q.4.

Fixing up of blastocyst in the wall of uterus is ... ... [ MPPMT 2002 ]

0%
a) Impregnation
33%
b) Placentation
67%
c) Implantation
0%
d) Fertilisation

Explanation

Q.5.

Mosaic cleavage occurs in ... ... [ RPMT 2000 ]

0%
a) Camel
33%
b) Dog Fish
33%
c) Whale
33%
d) Echinococcus

Explanation

Q.6.

Which one develops from ectoderm? [ Odisha 2010 ]

0%
a) Liver and heart
33%
b) Notochord and vertebral column
33%
c) Spinal cord and brain
33%
d) Eye and skin

Explanation

Q.7.

During development which of the following organs is formed first ... ... [ RPMT 2005 ]

60%
a) Heart
0%
b) Brain
20%
c) Neural tube
20%
d) Skin

Explanation

Q.8.

Mesoderm is formed through invagination of ... .. [ Guj CET 2006 ]

0%
a) Ectoderm
50%
b) Endoderm
25%
c) Inner mass of cells
25%
d) Primitive streak

Explanation

Q.9.

When do the three germinal layers differentiate ... .... [ RPMT 1996 ]

0%
a) Blastula
50%
b) Gastrula
50%
c) Cleavage
0%
d) Fertilization

Explanation

Q.10.

Primary germ layers are ... ....

0%
a) trophoblast, ectoderm, mesoderm and endoderm
50%
b) endoderm, trophectoderm and tropho-mesoderm
50%
c) tropho-mesoderm and trophectoderm
0%
d) ectoderm, mesoderm and endoderm

Explanation

Q.11.

In mammals, primitive streak gives rise to ... ... [ MPPMT 1994 ]

0%
a) Ectoderm
50%
b) Mesoderm
0%
c) Endoderm
50%
d) All the germs layers

Explanation

Q.12.

In higher animal blastopore generally forms ... ... [ JIPMER 2002]

0%
a) Anus
100%
b) Mouth
0%
c) Liver
0%
d) Gut

Explanation

Q.13.

Macrolecithal eggs are characterised by ... ... [ Manipal 2005 ]

50%
a) Little yolk
50%
b) Abundant yolk
0%
c) Entry of sperm
0%
d) Pattern of cleavage

Explanation

Q.14.

Structure absent in Frog's testis is ... ... [ BHU 2003 ]

50%
a) Seminiferous tubules
0%
b) Seminal vesicles
0%
c) Sertoli cells
50%
d) Interstitial cells

Explanation

Q.15.

Testis of Whale are ... ... [ RPMT 1996 ]

0%
a) Extra-abdominal
50%
b) Half external, half internal
50%
c) Internal
0%
d) None of the above

Explanation

Q.16.

Gonads/ testes develop from embryonic ... ... [ CBSE 1990 ]

0%
a) Ectoderm
50%
b) Endoderm
0%
c) Mesoderm
50%
d) Both mesoderm and endoderm

Explanation

Q.17.

Study of formation of sensory organs is ... ... [ CMC 2002 ]

0%
a) Organogenesis
50%
b) Neurogenesis
50%
c) Mesogenesis
0%
d) Notogenesis

Explanation

Q.18.

In human female the blastocyst ... .. [ CBSE 2010 ]

50%
a) Gets implanted in endometrium by trophoblast cells
50%
b) Forms placenta even before implantation
0%
c) Gets implanted into uterus 3 days after ovulation
0%
d) Gets nutrition from uterine endometrial secretion only after implantation

Explanation

Q.19.

Which is urinary bladder of child in womb? ... ... [ MPPMT 1995 ]

0%
a) Urinary bladder
50%
b) Liver
0%
c) Allantois
50%
d) Amnion

Explanation

Q.20.

In the urogenital system one of the following part is present in males and not in females ... ... [ CPMT 2005 ]

0%
a) Urethra
0%
b) Fallopian tube
33%
c) Vagina
67%
d) Vas deferens

Explanation

Q.21.

Migration and rearrangement of cells during embryo development occur in ... ... [ MPPMT 1994 ]

0%
a) Epiboly
33%
b) Emboly
0%
c) Involution
67%
d) Gastrulation

Explanation

Q.22.

In apomictic/ parthenogenetic development the individuals are .... ... [ CPMT 1997]

0%
a) Morphologically and genetically similar
0%
b) Morphologically and genetically different
100%
c) Morphologically different but genetically similar
0%
d) None of the above

Explanation

Q.23.

Cleavage involving incomplete division is ... ... [ MPPMT 1996 ]

0%
a) Spiral
33%
b) Meroblastic
33%
c) Holoblastic
33%
d) Meridional

Explanation

Q.24.

Assertion: From evolutionary point of view, human gestation period is shortening Reason: A major trend in humans has been larger head undergoing faster growth in foetal stages ... .... [ AIIMS 2004 ]

50%
a) Both Assertion and Reason are true and Reason is the correct explanation of Assertion
50%
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

Explanation

Q.25.

ganglia of sympathetic and other neural systems develop from ... ... [ AIIMS 2002 ]

0%
a) Neural cell
0%
b) Neural plate cells
0%
c) Notochord cells
100%
d) Neural crest cells

Explanation

Q.26.

Which one develops from ectoderm ... .. [ RPMT 1996 ]

0%
a) Adrenal medulla
50%
b) Adrenal cortex
0%
c) Blood
50%
d) lymph

Explanation

Q.27.

During gastrulation blastomere moves from the surface to their destination in the embryo. These movements are called ... ...

0%
a) migratory movements
0%
b) formative movements
50%
c) morphogenetic movements
50%
d) All the above

Explanation

Q.28.

Holoblastic cleavage occurs in ... ... [ JIPMER 1997 ]

0%
a) Insects
50%
b) Frog
0%
c) Birds
50%
d) Mammals

Explanation

Q.29.

Eggs produced in a year by an ovary of non pregnant woman is ..... ....

0%
a) 12
50%
b) 6
0%
c) 24
50%
d) 48

Explanation

Q.30.

Which is correct about morula ... .. [ CBSE 2010 ]

0%
a) Less cytoplasm and less DNA than zygote
100%
b) Same amount of cytoplasm and DNA as zygote
0%
c) More cytoplasm and more DNA than zygote
0%
d) Same amount of cytoplasm much more DNA than zygote

Explanation

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