Class 12 Biology MCQs Sexual Reproduction In Flowering Plants for NEET

Here, you will get Class 12 Biology MCQ of Chapter 2 Sexual Reproduction In Flowering Plants for cracking NEET/AIIMS. By solving these MCQs of Class 12 Biology Chapter 2 Sexual Reproduction In Flowering Plants, you will get the confidence to crack NEET. Practice MCQ Questions for Class 12 Biology with Answers on a daily basis and score well in exams. 

Sexual Reproduction In Flowering Plants Class 12 MCQs Questions with Answers

The female gametophyte of a typical dicot at the time of fertilisation is
(a) 8 – celled
(b) 7 – celled
(c) 6 – celled
(d) 5 – celled

Answer: (b) 7 – celled

Both chasmogamous and cleistogamous flowers are present in
(a) Helianthus
(b) Commelina
(c) Rosa
(d) Gossypium

Answer: (b) Commelina

Male and female flowers are present on different plants (dioecious) to ensure xenogamy, in
(a) papaya
(b) bottle gourd
(c) maize
(d) all of these

Answer: (a) papaya

Plants with ovaries having only one or a few ovules are generally pollinated by
(a) bees
(b) butterflies
(c) birds
(d) wind

Answer: (d) wind

Spiny or sticky pollen grains and large, attractively coloured flowers are associated with
(a) hydrophily
(b) entomophily
(c) ornithophily
(d) anemophily

Answer: (b) entomophily

In albuminous seeds, food is stored in _______ and in non albuminous seeds, it is stored in _______
(a) endosperm, cotyledons
(b) cotyledons, endosperm
(c) nucellus, cotyledons
(d) endosperm, radicle

Answer: (a) endosperm, cotyledons

Which structure is not found in Angiosperm?
(a) Archegonium
(b) Carpel
(c) Anther
(d) Magagametophyte

Answer: (a) Archegonium

Who proved that the cells are totipotent?
(a) White
(b) Skoog
(c) Miller
(d) Steward

Answer: (d) Steward

Father of lndian Angiosperm Embnology is
(a) B. M. John
(b) B. G L. Swami
(c) R.N. Kapil
(d) P. Maheshwari

Answer: (d) P. Maheshwari

How many meiotic divisions are necessary to produce 100 pollen grains ?
(a) 100
(b) 50
(c) 25
(d) 20

Answer: (c) 25

In a type of apomixis known as adventive embryony, embryos develop directly from the
(a) Nucellus or integuments
(b) Zygote
(c) Synergids or antipodals in an embryo sac
(d) Accessory embryo sacs in the ovule

Answer: (a) Nucellus or integuments

Development of fruit without fertilizations is
(a) Parthenogenesis
(b) Heterostyly
(c) Parthenocarpy
(d) Agamospermy

Answer: (c) Parthenocarpy

The pollen tube usually enters the embryosac
(a) Through one of the synergids
(b) By directly penetrating the egg
(c) Between one synergid and central cell
(d) By Jtnocking off the antipodal cells

Answer: (a) Through one of the synergids

Fertilization is depicted by the condition
(a) N → 2N
(b) 2N → N
(c) 2N → 4N
(d) 4N → 2N

Answer: (a) N → 2N

Vegetative propagation by bulbils occur in
(a) Agave
(b) Gingiber
(c) Vallisneria
(d) Curcuma

Answer: (a) Agave

Polyembryony commonly occurs in
(a) banana
(b) tomato
(c) potato
(d) citrus

Answer: (d) citrus

The outermost and innermost wall layers of microsporangium in an anther are respectively
(a) endothecium and tapetum
(b) epidermis and endodermis
(c) epidermis and middle layer
(d) epidermis and tapetum

Answer: (d) epidermis and tapetum

Science of cultivation, breeding, marketing and arrangement of flowers is called
(a) arboriculture
(b) floriculture
(c) horticulture
(d) anthology

Answer: (b) floriculture

Study of pollen grains is called
(a) micrology
(b) anthology
(c) palynology
(d) pomology

Answer: (c) palynology

Stalk of ovule is called
(a) Funicle
(b) Caruncle
(c) Nucellus
(d) Pedicel

Answer: (a) Funicle

In angiosperms all the four microspores of tetrad are covered by a layer which is formed by
(a) Pectocellulose
(b) Callose
(c) Cellullose
(d) Sporopollenin

Answer: (b) Callose

When pollen tube enter into the nucellus through micropyle is called
(a) Porogamy
(b) Xenogamy
(c) Mesogamy
(d) Dikogamy

Answer: (a) Porogamy

The sexual reproduction in plants was first reported by
(a) Nawaschin
(b) Camererius
(c) Hanstein
(d) Amici

Answer: (b) Camererius

Milky water of tender coconut is
(a) Liquid gametes
(b) Liquid nucellus
(c) Liquid female gametophyte
(d) Liquid endosperm

Answer: (d) Liquid endosperm

In which one pair both the plants can be vegetatively propagated by leaf segments?
(a) Agave and Kalanchoe
(b) Bryophyllum and Kalanchoe
(c) Asparagus and Bryophyllum
(d) Chrysanthemum and Agave

Answer: (b) Bryophyllum and Kalanchoe

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