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NEET Biology MCQ
Reproduction In Organisms Mcq
Quiz 8
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Q.1
hich physiological process is necessary for birth, growth, death, production of offspring and for continuity of the species?
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a) Digestion
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b) Transportation
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c) Reproduction
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d) Nutrition
Explanation
Reproduction is defined as a biological process in which an organism gives rise to young ones (offspring) similar to itself. The offspring grow, mature and in turn produce new offspring. Thus, there is a cycle of birth, growth and death. Answer:(c)
Q.2
n which plants motile ciliated spores are produced during spore formation?
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a) Chlamydomonas
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b) Spirogyra
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c) Dictyota
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d) Fucus
Explanation
A zoospore is a motile asexual spore that uses a flagellum for locomotion. Zoospores of Chlamydomonas are biflagellate and exact replicas of their parent cell. Answer:(a)
Q.3
hich type of spores are produce by Pteridophytes and gymnosperms ?
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a) Spores
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b) Somatic spores
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c) Heterospores
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d) Homospores
Explanation
Gymnosperms and angiosperms form two kinds of spores: microspores, which give rise to male gametophytes, and megaspores, which produce female gametophytes. Spores are of two different sizes, hence heterospores. Answer:(c)
Q.4
uring which phase a living organism becomes sexually mature?
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a) Childhood
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b) Adolescence
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c) Old age
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d) None of these
Explanation
Adolescence is a transitional stage of physical and psychological development that generally occurs during the period from puberty to adulthood. It is phase where human beings become sexually mature. Answer:(b)
Q.5
nternal fertilization and undoubtful maternity is guaranteed in the following type of sexual reproduction:
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a) Isogamy and Anisogamy
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b) Anisogamy only
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c) Oogamy and Anisogamy
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d) Oogamy only
Explanation
syngamy occurs inside the body of the organism, hence the process is called internal fertilisation. In all these organisms, egg is formed inside the female body where they fuse with the male gamete. In organisms exhibiting internal fertilisation, the male gamete is motile and has to reach the egg in order to fuse with it. Sexual reproduction involving a small motile male gamete and a large much less motile female gamete is called oogamy. Answer:(d)
Q.6
atch column I and column II.
Column I (Name of organism)
Column II [Chromosome number in gametes (n])
a. Apple
17
b. Maize
10
c. Potato
24
d. Human beings
23
e. Rice
12
f. Ophioglossum
630
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a) a=1, b=2, c=3, d=4, e=5, f=6
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b) a=2, b=3, c=6, d=1, e=5, f=4
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c) a=3, b=4, c=2, d=1, e=6, f=5
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d) a=4, b=3, c=5, d=1, e=2, f=6
Explanation
Name of organism
Chromosome number in gametes (n)
Apple
17
Maize
10
Potato
24
Human beings
23
Rice
12
Ophioglossum (a fern)
630
Answer:(a)
Q.7
mong the following, the correct statement is:
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a) In animals, reproductive phase is followed by morphological and physiological changes prior to senescent phase
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b) Only in animals hormones are responsible for the transition between juvenile, reproductive and senescent phase
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c) All organisms have to reach a certain stage of growth and maturity in their life, before they can reproduce sexually
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d) Annual and biennials does not show clearly defined vegetative, reproductive and senescent phases
Explanation
Answer:(c)
Q.8
n which of following, diameter of stock is larger than scion:
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a) Side grafting
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b) Tongue grafting
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c) Wedge grafting
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d) Crown grafting
Explanation
Answer:(d)
Q.9
ither male or female reproductive organs are found in the body
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a) Monoecious
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b) Dioecious
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c) Meiocyte
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d) Syngamy
Explanation
Answer:(b)
Q.10
ametes released in the surrounding medium
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a) Fishes
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b) Amphibians
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c) Mammals
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d) Both a and b
Explanation
Answer:(d)
Q.11
n which type of organism asexual reproduction is seen?
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a) Unicellular
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b) Bicellular
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c) Multicellular
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d) Both a and c
Explanation
Answer:(d)
Q.12
hich special method of reproduction is found on Nephrolepis?
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a) Offsets
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b) Stolons
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c) Runner
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d) Suckers
Explanation
Answer:(b)
Q.13
hich of the following Plant shows root cutting?
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a) Sugarcane
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b) Croton
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c) Rose
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d) Lemon
Explanation
Answer:(d)
Q.14
hich method of asexual reproduction can be said as method of regeneration?
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a) Binary fission
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b) Sporulation
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c) Budding
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d) Fragmentation
Explanation
Answer:(d)
Q.15
y which medium gametes of Algae, Bryophytes and Pteridophytes move?
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a) Air
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b) Water
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c) Lipids
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d) Tissue
Explanation
Answer:(b)
Q.16
hich organism becomes reproductive due to deficiency of mitosis and meiosis?
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a) Dog
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b) Amoeba
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c) Grasshopper
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d) Earthworm
Explanation
Answer:(b)
Q.17
ssertion: The main function of stem is reproduction. Reason: Stem contains (possess) leaves which produce food for plant.
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a) Assertion is true and Reason is false
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b) Assertion is false and Reason is true
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c) Assertion and Reason both are true and Reason is correct explanation of Assertion
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d) Assertion and Reason both are true but Reason is not correct explanation of Assertion
Explanation
Answer:(b)
Q.18
atch the appropriate pairs.
Column - I
Column - II
(P) Terminalia
(i) Layering
(Q) Rose
(ii) Root cutting
(R) Hibiscus
(iii) Grafting
(S) Mango
(iv) Stem cutting
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a) P-i, Q-ii,R-iii, S-iv
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b) P-iv, Q-iii, R-ii, S-i
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c) P-ii, Q-iv, R-i, S-iii
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d) P-ii, Q-iv, R-iii, S-i
Explanation
Answer:(c)
Q.19
aploid plants are obtained by culture of-
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a) Young leaves
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b) Endosperm
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c) Pollen grain
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d) Root apex
Explanation
Pollen Grain since that is the only haploid cell among the options. Answer provided by Ani Answer:(c)
Q.20
hich of the following animal shows longitudinal binary fission?
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a) Euglena
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b) Plasmodium
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c) Planaria
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d) Paramecium
Explanation
Answer:(a)
Q.21
here is maturity observed in the Sporophytic stage of the plants?
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a) In gemina
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b) In primary structures
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c) In sporophylls
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d) In eggs
Explanation
Answer:(b)
Q.22
ccurrence of an embryo after the adult stage required the following embryological events:
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a) Occurrence of meiosis in zygote soon after fertilization
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b) Occurrence of mitosis in zygote soon after fertilization
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c) Internal fertilization which is occurring in the female body
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d) Non – motile female and male gametes
Explanation
Answer:(b)
Q.23
egetative propogules in certain angiosperms are given. The correct matching is:
Column I
Column II
a. Ginger
Eye of stem tuber
b. Potato
Leaf bud
c. Agave
Rhizome
d. Bryophyllum
Offset
e. Water hyacinth
Bulbil
f. Banana
-- --
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a) a=2, b=1, c=5, d=4, e=3, f=1
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b) a=3, b=1, c=5, d=2, e=4, f=3
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c) a=4, b=2, c=5, d=1, e=3, f=4
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d) a=5, b=3, c=1, d=4, e=2, f=2
Explanation
Answer:(b)
Q.24
uvenile phase represents the period of
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a) Growth
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b) Death
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c) Birth
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d) None
Explanation
Answer:(a)
Q.25
n some algae----are motile
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a) male gametes
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b) female gametes
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c) both male and female gametes
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d) none of the above
Explanation
Answer:(c)
Q.26
ow does Amoeba reproduce?
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a) Binary fission
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b) Budding
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c) Sporulation
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d) Both a and c
Explanation
Answer:(d)
Q.27
ther than Euglena, which of the following organism divides by longitudinal division?
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a) Amoeba
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b) Paramecium
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c) Vorticella
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d) Plasmodium
Explanation
Answer:(c)
Q.28
n which plants isogametes are seen?
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a) Cladophora
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b) Ulothrix
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c) Spirogyra
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d) Both a and b
Explanation
Answer:(d)
Q.29
n Angiosperms which part of the flowers attached with plant body.
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a) Calyx
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b) Corolla
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c) Gynoecium
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d) Androecium
Explanation
Answer:(c)
Q.30
ssertion: In specific plant structure rhizome, tuber, corm, bulbil are the strange sexual reproductive system Reason: These are the common vegetative reproduction in monocotyledon family
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a) Assertion is true and Reason is false
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b) Assertion is false and Reason is true
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c) Assertion and Reason both are true and Reason is correct explanation of Assertion
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d) Assertion and Reason both are true but Reason is not correct explanation of Assertion
Explanation
Answer:(d)
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