NEET Biology is the vey important paper in the medical entrance exam. Here, you will discover the NEET Biology MCQs and Answers for all Concepts as per the latest syllabus. Practice more on a regular basis with these NEET Biology objective questions on air pollution . NEET Biology Implantation and Gastrulation Multiple Choice Questions
MCQs on Implantation and Gastrulation :
1. ___________ is formed during gastrulation
(a) gill
(b) vitelline membrane
(c) heart
(d) archenteron
Answer
Answer: (d)
2. Mesoderm gives rise to all the structures except
(a) gonads
(b) circulatory system
(c) nervous system
(d) muscular system
Answer
Answer: (c)
3. The fertilized eggs in human females gets implanted in uterus
(a) after one month of fertilization
(b) after two months of fertilization
(c) after about 7 days of fertilization
(d) after 3 weeks of fertilization
Answer
Answer: (c)
4. Brain, nerve cells and spinal cord or the Central nervous system develops from embryonic
(a) mesoderm
(b) endoderm
(c) ectoderm
(d) both (b) and (c)
Answer
Answer: (c)
5. This list contains only the mesodermal structures
(a) Heart, blood, bones, notochord
(b) heart, blood, muscles, liver
(c) notochord, blood, liver, muscles
(d) liver, heart, bones, blood
Answer
Answer: (a)
6. Implantation is the process of
(a) attachment of blastocyst to the uterine wall
(b) egg movement
(c) degeneration of egg
(d) egg fertilization
Answer
Answer: (a)
7. This embryo has parasitic mode of nutrition
(a) mammalian embryo
(b) bird’s embryo
(c) amphibian embryo
(d) reptilian embryo
Answer
Answer: (a)
8. If the nuclei from an 8-celled stage of an embryo are transplanted into enucleated eggs, which of the following events is likely to take place
(a) recipient egg dies
(b) donor nuclei die in the new environment
(c) cleavage occurs but is arrested after some time
(d) formation of viable embryo in the recipient eggs
Answer
Answer: (d)
9. Egg implantation is followed by
(a) Parturition
(b) Copulation
(c) Fertilization
(d) Gestation
Answer
Answer: (d)
10. Pseudopregnancy is a physiological condition comparable to normal pregnancy except that there is no
(a) endometrial changes
(b) developing foetus
(c) corpus luteum
(d) developing ovum
Answer
Answer: (b)