Can an unfertilised, apomictic embryo sac give rise to a diploid embryo ? If yes, then how ?
Can an unfertilised, apomictic embryo sac give rise to a diploid embryo ? If yes, then how ?
Yes, if megaspore develops into embryo without meiotic division then egg cell is diploid. Diploid egg cell develops into embryo by mitosis.
Note : Apomixis is a type of asexual reproduction, in which seeds are produced without fertilisation.
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Which of the following process is helpful in hybrid seed production:
Which of the following process is helpful in hybrid seed production:
- [AIIMS 2019]
Definations / Explanation
$1.$ apomixis
$2.$ polyembryony
Definations / Explanation
$1.$ apomixis
$2.$ polyembryony
Nucellar polyembryony is reported in species of
Nucellar polyembryony is reported in species of
How many sentences are correct?
- To produce seeds without fertilisation is called apomixis
- Occurance of more than one embryo in a seed is referred to as polyembryony
- The pollen grains represent the male gametophytes.
How many sentences are correct?
- To produce seeds without fertilisation is called apomixis
- Occurance of more than one embryo in a seed is referred to as polyembryony
- The pollen grains represent the male gametophytes.