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MCAT BIOLOGY MCQ SET 2
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1. Uterus opens into vagina through
cervix
urethra
clitoris
none of these
2. The total gestation period is of
265 days
275 days
280 days
285 days
3. The base pairs in DNA structure are far apart at a distance of
2nm
0.34nm
3.4mm
both c and d
4. The specialized structure including aster and spindle is called
centriole
astral microtubules
mitotic apparatus
all of these
5. Human genome consists of base pairs
3 billion
3 million
3 lac
3 thousand
6. Vestigial organs are example of
comparative anatomy
homology
analogy
all of these
7. All are hyphal fungi except
mushrooms
morels
puff balls
yeast
8. The cause of sleeping sickness is
plasmodium
tse-tse fly
trypanosoma
virus
9. Reptiles flourished throughout
mesozoic era
cenozoic era
devonian era
jurassic era
10. Each mesophyll cell have about chloroplast
20-100
40-100
10-100
50-100
11. The chemical link between catabolism and anabolism is
ATP
oxygen
nitrogen
all of these
12. All are diseases related to nutrition but which one is neurotic disorder also
dyspepsia
obesity
piles
bulimia nervosa
13. The no. of spiracles in cockroach thorax is
2
4
8
10
14. All are example of fish except
silver fish
whale
shark
trout
15. Which one is present in plant cells only
mitochondria
golgi bodies
vacuoles
plastids
16. Which cell is a anucleated cell
muscle cell
white blood cell
red blood cell
brain cell
17. Mesosomes are internal extensions of
cell membrane
cell wall
nucleus
vacuole
18. The small size and localized tumors are called
malignant
benign
both a and b
none of these
19. A tiny part of DNA controlling a sprcific character is called
base pair
allele
gene
nucleotide
20. The deficiency of thyroid secretions in adults produces
goiter
myxoedema
cretinism
graves disease
21. Skeletal muscles are joined to bones with the help of
tendon
ligament
connective tissue
both a and b
22. Panting the evaporative mechanism is most prominent in
elephant
bat
dog
fish
23. To excrete 1 g of urea nitrogen water require is
500ml
5000ml
50 cubic centimetre
5000 cubic centimetre
24. ome plants deposit strange chemicals in their branches and trunks especially in old xylem as in
conifers
eucalyptus
cactus
ebony
25. All hormones are amino acids or their derivatives except
oxytocin
thyroxin
epinephrine
nor-epinephrine
26. Hypothalamus is a part of
mid brain
hind brain
fore brain
medulla
27. Equisetum is example of
lycopsida
bryopsida
sphenopsida
pteropsida
28. Which is used to cure ring worm and skin diseases
cassia obovata
cassia senna
cassia fistula
cassia alata
29. Which physical method cause coagulation of bacterial proteins
dry heat
moist heat
gamma radiation
both a and b
30. In the structure of DNA the no. of base pairs in each turn is
10
20
34
0.34
31. The detachable co-factor is known as
prosthetic group
activator
co-enzyme
holoenzyme
32. Rate of reaction double after each rise of temperature of
10 centigrade
20 centigrade
10 kelvin
1 kelvin
33. The retroviruses are
single stranded DNA
single stranded RNA
double stranded RNA
double stranded DNA
34. Tests of foraminifera are made of
silica
carbon
calcium
all of these
35. The major producers in aquatic ecosystem are
dinoflagellates
euglenoids
brown algae
diatoms
36. Principal decomposers of cellulose and lignin are
bacteria
fungi
algae
both a and b
37. Simplest of all bryophytes is
liverworts
bryopsida
anthoceropsida
both a and b
38. The example of ectoparasites except
lice
fungi
tape worm
ticks
39. Deserts occur in the region where annual rainfall is
less than 250 mmm
250-650mm
250-750mm
none of these
40. All diseases are caused by nutrition deficiencies except
scurvy
beri beri
anemia
haemophilia
41. In grasshopper the male has chromosome
XX
XO
XXO
XY
42. Which type of genes do not obey law of independent assortment
linked genes
mutant genes
non-linked genes
both a and b
43. Which is a universal blood donor
O
AB
AB+
none of these
44. Who isolated the first restriction enzyme
Johns hopkin
Morgan
Nathans and Arber
Hamilton D. Smith
45. In acrocentric chromosome the centromere is located at the
tip
near tip
in middle
near middle
46. Plants growth is least at
35 centigrade
25-30 centigrade
5-10 centigrade
35-40 centigrade
47. Fungi store surplus food in form of droplets of
protein
glycogen
lipid
both b and c
48. Parasexuality phenomena is observed in
ascomycota
basidiomycota
zygomycota
deuteromycota
49. Fungi which is used to produce soya sauce or soya paste from soya bean is
penicillin
aspergillus
yeast
all of these
50. Canines are missing in all except
deer
sheep
goat
dog
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