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Biology · SEXUAL REPRODUCTION IN FLOWERING PLANTS

हिन्दी

In a typical dicotyledonous embryo, the cylindrical portion of the embryonal axis below the level of cotyledons is called:

  1. A
    Epicotyl, terminating in the radicle
  2. B
    Hypocotyl, terminating in the radicle or root tip
  3. C
    Epicotyl, terminating in the plumule or stem tip
  4. D
    Hypocotyl, terminating in the plumule
View Answer & Solution

Correct answer · Option B

Hypocotyl, terminating in the radicle or root tip

Explanation

The cylindrical portion below the level of cotyledons is hypocotyl that terminates at its lower end in the radicle or root tip.

Related questions

Consider the following statements regarding seeds: Statement I: Albuminous seeds retain a part of the endosperm as it is not completely consumed during embryo development. Statement II: In non-albuminous seeds such as castor and maize, the endosperm is completely consumed during embryo development. In the light of the above statements, choose the correct answer:→Read the following statements about pollination by water: Statement I: Pollination by water is quite common in flowering plants and occurs in over 200 genera of both dicots and monocots. Statement II: The distribution of some bryophytes and pteridophytes is limited because of the requirement of water for transport of male gametes and fertilisation. Choose the correct option:→In the given three-dimensional cut section of an anther, which structure is responsible for the release of pollen grains upon maturity?→In angiosperms, what is the primary biological significance of the delay in zygote division until a certain amount of endosperm has developed?→
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