Seed Dispersal And Fruit Formation Test

Seed Dispersal And Fruit Formation

This is online test 02 for CBSE class 12 Biology Sexual Reproduction in Flowering Plants (Seed dispersal and fruit formation).. There are 10 questions in this test with each question having around four answer choices.

Questions & Answers

1
The outer most layer of maize endosperm is
  • A
    Aleurone
    Correct
  • B
    Tapetum
  • C
    Perisperm
  • D
    Endothecium
2
The seeds dispersed by wind must not be
  • A
    Sticky
    Correct
  • B
    Minute
  • C
    Winged
  • D
    Light
3
In which of the following plants fruit contain larger number of seed
  • A
    Mango fruits
  • B
    Lemon fruits
  • C
    Orchid fruits
    Correct
  • D
    Neem fruits
4
Cultivation of hybrids has increased productivity although it is not used extensively
  • A
    Hybrid seed have to be produced every year
    Correct
  • B
    Hybrid seed are unhealthy
  • C
    Hybrid seeds are smaller in size
  • D
    Hybrid fruit may cause genetic disease
5
Coconut fruit is dispersed by
  • A
    Water
    Correct
  • B
    Animals
  • C
    Autochory
  • D
    Air
6
The mature seed that do not contain residual endosperm is called
  • A
    Perisperm
  • B
    Cotyledenous seed
  • C
    Albuminous seed
  • D
    Non-albuminous seed
    Correct
7
Seed dispersal helps the species to
  • A
    Colonies in new areas
    Correct
  • B
    Acclamation of species
  • C
    Variation of species
  • D
    Migration of species
8
Dormancy is the
  • A
    State of hyperactivity
  • B
    State of maturity
  • C
    Condition of senescence
  • D
    State of inactivity
    Correct
9
Assertion: Ovule develops into mature seeds and ovary develops into fruits. Reason: The fruits that develop only from ovary are called true fruits.
  • A
    Assertion is incorrect but reason is correct
  • B
    Assertion and reason both are incorrect
  • C
    Assertion is correct but reason is incorrect
  • D
    Both assertion and reason are correct
    Correct
10
Statement I: Seed is the basis of agriculture. Statement II: Dehydration and dormancy of mature seed is crucial for storage of seeds. Statement III: Seeds of rice and wheat remain viable for several years at normal condition.
  • A
    Statements II and III are correct
  • B
    Statements I and II are correct
    Correct
  • C
    All statements are correct
  • D
    Statements I and III are correct