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The vegetative propagule of Bryophyllum is:
1. Bulbil
2. Leaf buds
3. Rhizome
4. Offset

Water hyacinth is one of the most invasive weeds primarily because:
1. It gets adapted to any fresh water body easily
2. It produces secondary metabolites against herbivores
3. It can propagate vegetatively at a phenomenal rate
4. It is predated upon by a large number of organisms

Isogametes are seen in:
1. Cladophora
2. Fucus
3. Human beings
4. Ficus

The most critical event in sexual reproduction is:
(1) Gametogenesis
(2) Gamete transfer
(3) Fertilization
(4) Embryogenesis

With respect to organisms exhibiting internal fertilization, organisms exhibiting external fertilization show:
1. More variations
2. Great synchrony between sexes
3. Large female size than males
4. Less vulnerability to predation

In animals exhibiting internal fertilization:
1. There is high synchrony between the two sexes
2. The chances of desiccation of the embryo is high
3. The male gamete is motile
4. Vulnerability to predators is increased

Which one of the following statements is not correct?
(1) Offspring produced by the asexual reproduction are called clone
(2) Microscopic, motile asexual reproductive structures are called zoospores
(3) In potato, banana and ginger, the plantlets arise from the internodes present in the modified stem.
(4) Water hyacinth, growing in the standing water, drains oxygen from water that leads to death of fishes. 

Which one of the following generates new genetic combinations leading to variation?
(1) Vegetative reproduction
(2) Parthenogenesis
(3) Sexual reproduction
(4) Nucellar polyembryony

Which one of the following is wrong about Chara?
(1) Upper oogonium, and lower round anthredium
(2) Globule and nucule present on the same plant
(3) Upper anthredium and lower oogonium
(4) Globule is male reproductive structure

The 'Eyes' of the potato tuber are 
(1) flower buds
(2) shoot buds
(3) axillary buds
(4) root buds

A scion is grafted to a stock. The quality of fruits produced will be determined by the genotype of 
(1) stock
(2) scion
(3) both stock and scion
(4) neither stock nor scion.

Find out the correct statement:
(1) Life spans of organisms are necessarily correlated with their sizes
(2) The sizes of crows and parrots are not very different, so their life spans are almost similar
(3) A peepal tree has much shorter life span as compared to a mango tree
(4) Reproduction is essential for continuity of species on the earth

Which of the following is a false statement?
(1) All organisms have evolved similar mechanism to multiply and produce offsprings
(2) Asexual reproduction is uniparental
(3) Sexual reproduction is biparental
(4) In asexual reproduction no fertilization occurs

Individuals of a clone:
(1) Are genetically similar but morphologically different
(2) Are morphologically similar but genetically different
(3) Are morphologically and genetically similar
(4) Are genetically and phenotypically different

Asexual reproduction is common:
(1) Among single celled organisms only
(2) Among plants only
(3) Among single celled organisms, plants and all animals
(4) Among single celled animals, plants and animals with simple organizations

Which of the following statements is false?
(1) Asexual reproduction is simpler than sexual reproduction
(2) Asexual reproduction occurs by fission, budding and fragmentation
(3) In most of the animals both asexual and sexual modes of reproduction are found
(4) Vegetative and sexual modes of reproduction are exhibited by the higher plants

The fastest method to obtain clones is through:
(1) Induced mutation
(2) Parasexual hybridization
(3) Parthenogenesis
(4) Vegetative reproduction

Which of the following is false about internal fertilization?
I. Male gamete is motile
II. Male gametes are non-motile
III. Male gametes are produced in large number
IV. Male gametes are produced in small number
V. There is a significant reduction in the number of eggs produce
VI. In seeded plants non-motile male gametes are carried to female gamete by pollen tubes
(1) I, III, V, VI
(2) III, IV
(3) II, IV
(4) V, VI

Select the-correct sequence from the following:
(1) Gametogenesis → Syngamy → Zygote → Embryogenesis
(2) Gametogenesis → Syngamy → Embryogenesis → Zygote
(3) Zygote → Embryogenesis → Gametogenesis
(4) Syngamy → Gametogenesis → Zygote → Embryogenesis

Select the correct sequence from the following:
I. Juvenile phase → Senescent phase → Reproductive phase
II. Juvenile phase → Reproductive phase → Senescent phase
III. Reproductive phase → Juvenile phase → Senescent phase
IV. Vegetative phase → Reproductive phase → Senescent phase
(1) I and II
(2) I and IV
(3) III and IV
(4) II and IV

I. Bamboo species flower only once in their life time, generally after 50 -100 years, produce large number of fruits and die
II. In animals the juvenile phase is followed by physiological changes prior to active reproductive behaviour.
III. The reproductive phase is of same duration in all organisms.
IV. Juvenile phase is the period of growth between the birth of an individual till it reaches reproductive maturity.
V. In plants juvenile phase is also called vegetative phase.
Which of the following statements is false?
(1) I
(2) II
(3) III
(4) V

Which of the following regulates the reproductive processes and the associated behavioural expressions of organisms?
(1) Hormones
(2) Environmental factors
(3) Abiotic components
(4) Interaction between hormones and environmental factors

Match the following
1-Eyes of              P-Ginger
2-Rhizone of       Q-Potato
3-Bulbil of           R- Agave
4-Leaf buds of    S- Bryophyllum
5-Offset of          T-Water hyacinth
A. 1-Q, 2-R, 3-P, 4-S, 5-T
B. 1-S, 2-P, 3-R, 4-Q, 5-T
C. 1-Q, 2-P, 3-R, 4-S, 5-T
D. 1-T, 2-P, 3-R, 4-S, 5-Q

In vegetative propagation, when the _____ come in contact with damp soil or water, they produce roots and new plants.
1. Shoot
2. Node
3. Axial shoot
4. Seed

There are various types of reproduction. The type of reproduction adopted by an organism depends on:
A.The habitat and morphology of the organism
B.Morphology of the organism
C.Morphology and physiology of the organism
D.The organism’s habitat, physiology and genetic makeup

Offspring formed by sexual reproduction exhibit more variation than those formed by asexual reproduction because:
A.Sexual reproduction is a lengthy process
B.Gametes of parents have qualitatively different genetic composition
C.Genetic material comes from parents of two different species
D.Greater amount of DNA is involved in sexual reproduction.
 

In which of the following, gametes are released in the surrounding medium
A.Fishes
B.Amphibians
C.Earthworm
D.Both A and B

Find the monoecious plant
A.Coconut
B.Cucurbits
C.Both A and B
D.Papaya

Identify the mismatch statement regarding post fertilization events from the following statements.
A.Wall of ovary is converted in to pericarp
B.Outer integument is converted in inner integument
C.Triploid nucleus develops as endosperm
D.Ovary is developed as fruit.

Grafting is impossible in monocot-because
A. vascular cambium is absent 
B. Meristematic tissue is absent
C. Collateralopen vascular bundle
D. Radial vascular bundle

Identify the structure

A.Conidia
B.Penicillium
C.Algae
D.Zoospore

Identify A and B

The most vital event of sexual reproduction is perhaps the fusion of gametes. This process called _________ results in the formation of a diploid _________.
A. Syngamy, Zygote
B. Fertilization, Zygote
C. Copulation, Foetus
D. Both A and B are true

Strobilanthus kunthiana (neelakuranji), flowers once in _______ years.
A. 10
B. 20
C. 12
D. 16
 

In vegetative propagation by tuber, which of the following remains constant through generations
A.Morphology
B.Vigour
C.Morphology, vigour and disease resistance
D.Both morphology and Vigour