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Assertion : The two cotyledons in seed a...

Assertion : The two cotyledons in seed are embryonic leaves
Reason : The embryo contains radicle and plumule.

A

If both assertion and reason are true and the reason is a correct explanation of the assertion

B

If both assertion and reason are true but reason is not a correct explanation of the assertion

C

If the assertion is true but reason is false

D

If both the assertion and reason are false

Text Solution

Verified by Experts

The correct Answer is:
B
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Assertion : Orchid is monocotyledonous non-endospermic seed while castor is dicotyledonous endospermic seed Reason : In monocotyledonous (wheat and maize) cotyledon is one while is dicotyledonous (gram and pea) there are two cotyledons.

Knowledge Check

  • Which of the following parts of the embryo contains radicle and plumule?

    A
    Cotyledon
    B
    Seed coat
    C
    Embryonal axis
    D
    Endosperm

  • All plants have two cotyledons in their seed, except

    A
    Pea
    B
    Eucalyptus
    C
    Sunflower
    D
    Orchids

  • Assertion:The outermost covering of a dicotyledonous seed in the seed coat. Reason:The seed coat has two layers-outer testa and inner helium.

    A
    If both assertion and reason are true and reason is the correct explanation of assertion.
    B
    If both assertion and reason are true but reason is not the correct explanation of assertion.
    C
    If assertion is true but reason is false.
    D
    If assertion and reason are false.

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    Explore conceptually related problems

    Assertion : Roots contain nodes but no leaves or buds Reason : Root branches arise endogenously.

    Assertion : Reticular fibrous connective Tissue is called as embryonic tissue. Reason : Reticular fibrous connective tissue is mainly found in embryonic stage.

    Assertion: Unlike thallophytes, bryophytes show formation of embryo Reason: The embryo gives rise to gaemetophyte plant of bryophytes.

    Assertion : Starch synthesis in pea seeds is controlled by one gene. Reason: This gene has two alleles (B and b)

    Assertion (A) : Pea, bean, mustard are non -albuminous seeds. Reason (R): These seeds retain a part of endosperm as it is not completely used up during embryo development.

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