Biology 12 Sexual Reproduction In Flowering Plants MCQ Question Answer – Chapter 2

CBSE and NCERT Biology 12 Sexual Reproduction In Flowering Plants MCQ Question Answer – Chapter 2 : In this post we have provided you all MCQs of Biology Class 12 Unit 6 Chapter 2. These MCQs of Sexual Reproduction In Flowering Plants will help you a lot in scoring good marks as it is a collection of all the important questions.

All the students who are going to appear for their Biology Class 12 examinations must be aware of the new pattern introduced by the board, where they have included MCQs in the pattern. This section is a scoring one, so practice a lot of questions on Sexual Reproduction In Flowering Plants from this article and get good marks.

CBSE Class 12th Biology Syllabus

Biology 12 Environmental Issues Chapter 15 – Exercise

CBSE Class 12th Biology Sample Paper Download

Biology 12 Sexual Reproduction In Flowering Plants MCQ Question Answer – Chapter 2


Ques 1: A typical angiospermic flower consists of how many whorls of floral appendages?

  • Three
  • Two
  • One
  • Four

Four

Ques 2: Which of the following whorls of floral appendages in a typical angiospermic flower are non-essential or helping whorls ?

  • Calyx and corolla
  • Androecium and gynoecium
  • Calyx and androecium
  • Corolla and gynoecium

Calyx and corolla

Ques 3: Flowers are modifications of which part of an angiospermic plant ?

  • Roots
  • Leaves
  • Shoots
  • Buds

Shoots

Ques 4: Exine of pollen grain is chiefly composed of

  • Pecto-cellulose
  • Sporopollenin
  • Cellulose
  • Cutin

Sporopollenin

Ques 5: Pollen allergy in humans is generally caused by

  • Pollens of Parthenium
  • Pollens of sunflower
  • Pollens of Brassica
  • Pollens of Pisum sativum

Pollens of Parthenium

Sexual Reproduction in Flowering Plants Class 12 Biology MCQs

Ques 6: Which part of carpel, in an angiospermic flower, bears ovules ?

  • Stigma
  • Style
  • Ovary
  • Thalamus

Ovary

Ques 7: The function of funiculus is

  • It attaches the ovule to the placenta
  • It is a mass of parenchyma tissue surrounded by integuments
  • It is a place of origin of the integuments
  • It is a narrow pore formed by the projection of the integuments

It attaches the ovule to the placenta

Ques 8: Megasporogenesis occurs

  • inside the nucellus
  • outside the nucellus
  • inside the funiculus
  • at the raphe

inside the nucellus

Ques 9: Triploid nucleus is formed by the fusion of

  • Zygote and one polar nucleus
  • Two polar nuclei and one male gamete
  • Eg and two synergids
  • Egg and two male gametes

Two polar nuclei and one male gamete

Ques 10: Autogamy involves

  • transfer of pollen of one flower to stigma of other flower of same plant
  • transfer of pollen of a flower to the stigma of the same flower
  • transfer of pollen of a flower of one plant to the stigma of flower of other plant
  • none of these

transfer of pollen of a flower to the stigma of the same flower

Ques 11: The mode of transfer of pollen grains from anther to stigma through the agency of wind is termed

  • Entomophily
  • Chiropterophily
  • Ornithophily
  • Anemophily

Anemophily

Ques 12: In Vallisneria, pollination occurs with the help of

  • water
  • wind
  • birds
  • bats

water

Ques 13: Which of the following insects reveal close obligatory symbiotic relationship with Yacca plant and effects pollination ?

  • Colpa aurea
  • Tageticula
  • Apis mellifera
  • All of these

Tageticula

Important MCQs on Sexual Reproduction in Flowering Plants

Ques 14: Which of the following characteristics of flowers of plants make them stronger candidates to be pollinated by bats ?

  • Flowers are small, coloured and scentless
  • Flowers are large, coloured and scentless
  • Flowers and large, dull coloured and have a strong scent
  • Flowers are small, dull coloured and have a little scent

Flowers and large, dull coloured and have a strong scent

Ques 15: Primary endosperm nucleus is formed by the fusion of

  • One male gamete and two polar nuclei
  • one male gamete and antipodal cells
  • one male gamete and egg
  • one male gamete and synergids

one male gamete and antipodal cells

Ques 16: Which of the following is a false fruit ?

  • Apple
  • Mango
  • Brinjal
  • Cucumber

Apple

Ques 17: In apomixis, the new individuals are

  • genetically dissimilar to the parent producing them
  • genetically similar to the parent producing them
  • few genetically similar and few dissimilar to the parent producing them
  • Majority of them are dissimilar/or similar to the parent producing them

genetically similar to the parent producing them

Ques 18: A nutritive tissue, endosperm arises from

  • Zygote
  • Apodals
  • Primary endosperm nucleus
  • Synergids

Primary endosperm nucleus

Ques 19: When the pollen tube enters the ovule laterally (as in Cucurbita0, which of the following term is used

  • Porogamy
  • Misogamy
  • Chalazogamy
  • none of these

Misogamy

Download CBSE Class 12 Biology MCQs On Sexual Reproduction in Flowering Plants

Ques 20: Which of the following is a 3 n structure ?

  • Zygote
  • Apodals
  • Egg apparatus
  • Primary endosperm nucleus

valium

Ques 21: Which of the following plants reveals gun powder mechanism, i.e., the anthers burst suddenly to throw the pollen grains in the air ?

  • Cannabis
  • Urtica
  • Vallisneria
  • Maize

Maize

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Biology Sexual Reproduction in Flowering Plants Chapter 2 – Exercise

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We hope that the MCQs that we have provided you on Sexual Reproduction In Flowering Plants will be helpful to you in your preparation, and will help you gain good marks. In case of issues, do let us know via comment section.

Updated: December 4, 2021 — 3:04 pm

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