1. Tardigrade
  2. Question
  3. Biology
  4. Choose the option that correctly identifies (A-D) blanks in the statements (I-IV) given below: I. An embryo develops at the underline A end of embryo sac. II. underline B seed was discovered during the archaeological excavation at King Herod’s palace. III. underline C is a form of asexual reproduction that mimics sexual reproduction. IV. Pollen-pistil interaction is a underline D process.

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Q. Choose the option that correctly identifies (A-D) blanks in the statements (I-IV) given below:
I. An embryo develops at the $\underline{ \, A \, \, }$ end of embryo sac.
II. $\underline{ \, B \, \, }$ seed was discovered during the archaeological excavation at King Herod’s palace.
III. $\underline{ \, C \, \, }$ is a form of asexual reproduction that mimics sexual reproduction.
IV. Pollen-pistil interaction is a $\underline{ \, D \, \, }$ process.

NTA AbhyasNTA Abhyas 2020Sexual Reproduction in Flowering Plants

Solution:

Embryo develops at the micropylar end of the embryo sac because the egg is present towards the micropylar end.
Phoenix seed was discovered during the archaeological excavation at King Herod’s palace.
Apomixis is a form of asexual reproduction that mimics sexual reproduction. It is a mechanism to produce seeds without fertilisation. This mechanism produces clones and, hence, can be considered as a form of asexual reproduction.
Pollen-pistil interaction is a dynamic process of pollen recognition followed by promotion or inhibition of the pollen. Chemical components of the pollen interact with those of the pistil.