R4RIN
Articles
Java 8
MCQS
NEET Test Series-2021 to 2022 MCQ Quiz Hub
NEET Biology MCQS Mock Test Paper 4
Choose a topic to test your knowledge and improve your NEET Test Series-2021 to 2022 skills
1. CFCs are crucial in global warming along with their role in ozone depletion as it
known for destroying ozone, which cools the earth
blocks ultraviolet-B radiation
absorbs solar radiation
absorbs earthshine in 10 micron region
2. Which of the following is not a major greenhouse gas?
ozone
water vapour
methane
carbon dioxide
3. Ultraviolet radiations from sunlight cause a reaction producing
carbon monoxide
ozone
fluorides
sulphur dioxide
4. Surplus of atmospheric carbon dioxide causes an increase in the greenhouse effect as carbon dioxide
is opaque to infrared rays
is not opaque to infrared rays
precipitates dust in the atmosphere
reduce atmospheric pressure
5. Checking of re radiating heat by atmosphere carbon dioxide, dust, methane, ozone is known as
solar effect
radioactive effect
ozone layer
greenhouse effect
6. Test tube baby means a baby born when
developed in a test tube
ovum is fertilized externally and thereafter implanted in uterus
it is developed through the tissue culture method
developed from a non-fertilized egg
7. Through amniocentesis foetal cells can be cultures and tested for detecting various diseases if foetus by
DNA Analysis
Karyotype
Enzyme production
All of these
8. The success of birth control programme in controlling population growth is dependant on
tubectomy
use of contraceptives
vasectomy
acceptability of the above by the people
9. Which one of the following is tested by the technique of amniocentesis
chromosomal abnormalities in foetus
biochemical abnormalities in foetus
errors of metabolism in foetus
all the above
10. Foetal sex can be determined by examining cells from the amniotic fluid by looking for
Kinetochore
chiasmata
autosomes
barr bodies
11. Action of vaginal diaphragm is
prevent the sperm to come in contact with ova
anti-implantational
spermicidal
prevent the ova to come in the uterus
12. Which of the following is a method of birth control
GIFT
IUDS
IVE-ET
HTF
13. Action of contraceptive is
Prevention of ovulation and fertilization only
prevent ovulation only
prevent rapid passing of eggs in oviduct
prevention of ovulation, implantation and fertilization only
14. Action of cream and jelly is
entagles sperm
spermicidal and immobilizing the sperms also
enables sperms to reach towards ovum speedly
prevents the ova from being released
15. If the stem grows towards sunlight and root grows just opposite to it, the stem movement us known as
phototropic movement
negative phototropic movement
positive phototropic movement
none of these
16. An apparatus commonly used to demonstrate phototropism is
clinostat
heliotropic chamber
potometer
arc auxanometer
17. Protoplasmic streaming movements are referred to as
photonasty
thigmonasty
autonomic movements of locomotion
movements of curvature
18. Tertiary roots are
negatively geotropic
ageotropic
positively geotropic
plagiogeotropic
19. The best material for demonstrating streaming movements of protoplasm within living cells is
pith cells
onion peelings
staminal hairs of Tradescantia
None of these
20. What is the function of copper-T
stops oblituation of blastocoel
checks mutation
stops fertilization
stops zygote formation
21. Test tube baby means a baby born when
developed in a test tube
ovum is fertilized externally and thereafter implanted in uterus
it is developed through the tissue culture method
developed from a non-fertilized egg
22. The elastic tissue which connects the cauda epididymis to the scrotal sac is
Caput epididymis
Scrotal ligament
Gubernaculum
Tendinous cord
23. By the contraction of the spermatic cord, the testis of man are not taken to the abdominal cavity due to this structure
fat bodies and gubernaculum present over the testis
attachment of testis by gubernaculum to the scrotal sac only
narrowness of inguinal canal
both (b) and (c)
24. The seminiferous tubules of the testis are lined by the germinal epithelium consisting of
spermatids
cells of Sertoli
spermatogonium
spermatocytes
25. These cells of the testes secrete testosterone
Sertoli cells
cells of germinal epithelium
Cells of Leydig or interstitial cells
secondary spermatocytes
26. There is a connective tissue cord extending between the testis and abdominal wall known as
mesenteric cord
gubernaculum
testis cord
spermatic cord
27. Which of these is an accessory reproductive gland in male mammals
Inguinal gland
Prostate gland
Mushroom-shaped gland
Gastric gland
28. There are some special types of cells present in the seminiferous tubules known as Sertoli cells which are
somatic cells
germinal cells
protective cells
reproductive cells
29. Seminiferous tubules develop central lumen after
Old age
Prepuberal time
Birth
Puberty
30. Another name for Bulbourethral gland is
Meibomian gland
Prostate gland
Perineal gland
Cowper’s gland
31. In man, Cryptorchidism is the condition when
testes do not descent into the scrotum
there are two testes in each scrotum
testis degenerates in the scrotum
testis enlarges in the scrotum
Submit