Sexual Rreproduction in Organism ( NEET/AIIMS Online Ptactice Exam)

Essential and most critical events in sexual reproduction is :-
1. fertilisation
2. fusion of male & female gametes
3. division in male & female gametes
4. Both ‘fertilisation’ & ‘fusion of male & female gametes’
‘Bisexual animals that process both male & female reproductive organs are called hermaphrodite’
The above statement is :-
1. True
2. False
3. Sometimes(True ) & sometimes (False)
4. Neither (True ) nor (False)
The ovary develops into a fruit having a thick outer protective covering called :-
1. mesocarp
2. endocarp
3. pericarp
4. All of these
The mammals (living in natural conditions) exhibiting reproductive cycles only during favourable seasons called as :-
1. seasonal breeders
2. non seasonal breeders
3. continuous breeders
4. non- continuous breeders
Fill the blanks from the following statements:-
----A---- involves formation of the ---B--- and ----C----- gametes, either by the -----D-----or by -----E---- of the ---F--- sex.
1. A- asexual reproduction, B- male, C- female, D- same individual, E- different individuals, F-opposite
2. A- sexual reproduction, B- male, C- female, D- same individual, E- different individuals, F-same
3. A- sexual reproduction, B- male, C- female, D- same individual, E- different individuals, F-opposite
4. A- sexual reproduction, B- male, C- male, D- same individual, E- different individuals, F-same
Which type of plants do not show clear cut vegetative, reproductive and senescent phases:-
1. annual
2. perennial
3. biennial
4. Both ‘annual’ & ‘biennial’
The morphological, physiological & anatomical structure are different in all organisims(plant, algae, fungi & plants) but they have similar :-
1. asexual reproduction
2. sexual reproduction
3. vegetative reproduction
4. vegetative propagation
Choose the correct statement about the vegetative reproduction from the stem of plants:-
I. Potato, Ginger & Banana.
II. Ginger, Banana & Colocossia.
III. Maize, Sugarcane & Tomato
IV. Banana, Dryopteris & Potato
V. Colocosia, Mango & Peepal

Choose the correct options :-
1. I, II & IV
2. II, III & V
3. I, II & IV
4. I Only
The period of growth to reach in maturity for sexual reproduction is called:-
1. reproductive phase
2. vegetative phase in plants
3. juvenile phase
4. Both ‘vegetative phase in plants’ & ‘juvenile phase’
The end of which phase in higher plants marks the beginning of reproductive phase :-
1. juvenile
2. vegetative
3. physiology
4. Both ‘ juvenile’ & ‘vegetative’
Formation of the diploid zygote is universal in all sexually reproducing organisms.
1. asexually reproducing organisms.
2. sexually reproducing organisms.
3. vegetative reproducing organisms.
4. All of these
Which of the plant undergoes from the arise from the nodes present in the modified stems of these plants:-
I. Potato, Ginger & Banana.
II. Ginger, Banana & Colocossia.
III. Maize, Sugarcane & Tomato
IV. Banana, Dryopteris & Potato
V. Colocosia, Mango & Peepal

Choose the correct options
1. I, II & IV
2. I, II & IV
3. II, III & V
4. I,II, III, IV & V
Which group of organism produce haploid gametes by mitosis:-
1. algae
2. fungi
3. bryophyta
4. All of these
Fill the blanks A, B & C given in the statement:-
----A---- as well as ---B---- of reproduction are exhibited by the higher plants. On the other hand, only -----C---- of reproduction is present in most of the animals.
1. A- asexual, B- vegetative modes, C- sexual mode
2. A- sexual, B- vegetative modes, C- sexual mode
3. A- asexual, B- sexual modes, C- asexual mode
4. A- asexual (vegetative), B- sexual modes, C- sexual mode
‘Unisexual male flower is called staminate’
The above statement
1. True
2. False
3. Sometimes(True) & sometimes(False)
4. Neither (True) nor (False)
Further development of the zygote depends on:-
1. the type of life cycle of the organism
2. the nature of environment
3. hormonal changes
4. Both ‘the type of life cycle of the organism’ & ‘the nature of environment’
Choose the correct statement from the following option.
I. Water hyacinth causes death of fish
II. Azolla causes rapid vegetative propagation in a short period.
III. Water hyacinth causes a phtoplankton like covering on the surface of water body to cause death.
IV. Water hyacinth causes rapid vegetative propagation in a short period.
V. Azolla causes a phtoplankton like covering on the surface of water body to cause death
1. I ,II & II
2. I, III & IV
3. II,III & V
4. I, II, III ,IV & V
Which process is an elaborate, complex and slow process as compared to asexual reproduction:-
1. sexual reproduction
2. vegetative reproduction
3. vegetative propagation
4. micropropagation
Why water hyacinth is called “Terror of Bengal”:-
1. It is being used as food for fish
2. It consumes oxygen from cultivated plant & destroy them
3. It consumes oxygen from water & decreases oxygen concentration in water
4. It is a weed
The gamete mother cell of diploid organism called as :-
1. mitocyte
2. meiocyte
3. megacyte
4. None of these
In which of the following organism self fertilisation is seen :-
1. fishes
2. leech
3. earthworm
4. liverfluke
Oestrus cycle is changes in the activities of ovaries & accessory duct during:-
1. reproductive period (seasonal)
2. maturation period
3. ageing period
4. juvenile period
The most vital events of sexual reproduction is :-
1. fertilization
2. fusion of male & female gametes
3. syngamy
4. All of these
The females of placental mammals non-primates (cows, sheep, rat, deer, dog, tiger) etc exhibit cyclical changes in the activities of ovaries, accessory ducts and hormones during the reproductive phase called :-
1. menstrual cycle
2. ovum cycle
3. oestrus cycle
4. All of these
In some algae & fungi the male and female gametes are :-
1. non motile
2. motile
3. partially motile
4. None of these
Based on zygote developments animals ae of how many types and what are they:-
1. oviparous & neuter
2. viviparous & neuter
3. neuter & parthenogenesi
4. oviparous & viviparous
Assertion (A) :- Zygote is a single cell
Reason (R) :- Two haploid cell fuse to form two diploid cell
1. Both A & R are true & R is the correct explanation of A
2. Both A & R are true, but R is not the correct explanation of A
3. A is true, but R is false
4. A is false, but R is true
In a majority of organisms, male gamete is -----A----- and the female gamete is -----B---. Fill the blank A & B
1. A- motile , B- stationary
2. A- non motile , B- stationary
3. A- motile , B- motile
4. A- stationary , B- stationary
Which plant is dioecious or unisexual :-
1. papaya & cucurbits
2. coconuts & papaya
3. cucurbits & date palm
4. papaya and date palm
Match the following :-
Column A(organism) Column B(meiocyte)

I Human being A 42

II Housefly B
12

III
Rat
C 46

IV Dog D
78
1. I-A, II-D, III-C, IV-B
2. I-D, II-C, III-B, IV-A
3. I-C, II-B, III-A, IV-D
4. I-D, II-C, III-A, IV-B
During embryo development zygote undergoes :-
1. cell elongation
2. cell division
3. cell differentiation
4. Both ‘cell division’ & ‘cell differentiation’
Which of the following is correct about Neela Kuranji ?
1. last time it was flowered in Sept-Oct, 2006
2. next time it will have flower in Sept-Oct, 2018
3. it is found in Kerela, Tamil Nadu & Karnataka
4. All of these
Which plant was introduced in India because of its beautiful flowers and shape of leaves:-
1. water hyacinth
2. rafflesia
3. marsilea
4. azolla
Haploid parental body is found in which organism :-
1. monera & fungi
2. algae & bryophyta
3. monera & algae
4. All of these
In most plants & animals, the male and female gametes are distinct types called as :-
1. homogametes
2. heterogamete
3. anisogametes
4. All of these
Which of the following statement support the view that elaborates sexual reproductive processes appeared much later in organic evolution:-
I. Lower groups of organisms have complex body design
II. Asexual reproduction is common in lower groups
III. Asexual reproduction is common in higher groups of organisms
IV. High incidences of sexual reproduction are visible in angiosperms & vertebrates.
1. I & II
2. I & IV
3. II & IV
4. II & III
Which is the process of formation of male and female gametes (haploid cells):-
1. gametogenesis
2. spermatogenesis
3. oogenesis
4. All of these
Juvenile phase in plants is :-
1. vegetative phase
2. reproductive phase
3. growth phase
4. senescence phase
Which group of organism shift to sexual method of reproduction just before the onset of adverse conditions:-
1. algae, bryophyta & fungi
2. gymnosperm, pteridophyta & angiosperm
3. algae & fungi
4. gymnosperm & angiosperm
Bisexual animals (hermaphrodites) is/are :-
1. earthworms & fasiola
2. leech & ascaris
3. sponge & tapeworm
4. All of these
Large number of offspring produced in the case of :-
1. fertilisation that occur in external medium
2. fertilisation that occur in internal medium
3. Either ‘fertilisation that occur in external medium’ or ‘fertilisation that occur in internal medium’
4. Both ‘fertilisation that occur in external medium’ & ‘fertilisation that occur in internal medium’
Which plant species flowers once in 12 years:-
1. Strobilanthus sumiana
2. Strobilanthus kunthiana
3. Strobilanthus raffia
4. All of these
Which aquatic organism drains oxygen from the water, which leads to death of fishes:-
1. algae
2. water hyacinth
3. salvina
4. azolla
Match the following :-
Column A(organism) Column B(meiocyte)

I Maize A 3

II Potato B
380

III
Butterfly
C 48

IV Onion D
20
1. I-A, II-D, III-C, IV-B
2. I-C, II-B, III-A, IV-D
3. I-D, II-C, III-B, IV-A
4. I-D, II-C, III-A, IV-B
After pollination pollen grains germinate on :-
1. style
2. stigma
3. ovary
4. All of these
It is interesting to note that asexual reproduction is the common method of reproduction in organisms that have a relatively:-
1. simple organisation
2. complex organism
3. neuter organism
4. All of these
In biennials and perennials, low temperature stimulus is not received by:-
1. Shoot apex of mature stem
2. Embryo of the seed
3. Leaves of the plants
4. None of the above
In parthenocarpy which levels are high in ovaries:-
1. Gibberalins
2. Cytokinins
3. Auxins
4. All of these
Male & female reproductive structure present in same plnts called as :-
1. monoecious
2. dioecious
3. uniparent
4. All of these
In which type of life cycle zygote divides by meiosis to form haploid spores that grow into haploid individuals:-
1. neutronic life cycle
2. haplodiplontic life cycle
3. diplontic life cycle
4. haplontic life

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	Column A(organism)		Column B(meiocyte)
I	Human being	A	42
II	Housefly	B	12
III	Rat	C	46
IV	Dog	D	78

	Column A(organism)		Column B(meiocyte)
I	Maize	A	3
II	Potato	B	380
III	Butterfly	C	48
IV	Onion	D	20

Sexual Rreproduction in Organism ( NEET/AIIMS Online Ptactice Exam)

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