Advertisements
Advertisements
प्रश्न
What is apomixis?
Advertisements
उत्तर
Although seeds are generally the product of fertilisation, a few flowering plants, such as some species of Asteraceae and grasses, have evolved a special mechanism to produce seeds without fertilisation called apomixis.
APPEARS IN
संबंधित प्रश्न
Are pollination and fertilization necessary in apomixis?
Explain various categories of apomixis.
In ______a diploid sporophyte cell produces a diploid gametophyte without undergoing meiosis.
Identify the CORRECT statements with respect to non-recurrent apomixis.
i. Plants produced by this method are generally sterile and do not reproduce sexually.
ii. In this, megaspore mother cell undergoes usual meiotic division and a haploid embryo sac is formed.
______ refers to the formation of seeds without fertilization.
The phenomenon observed in some plants wherein parts of the sexual apparatus are used for forming embryos without fertilization is called ______.
A form of asexual reproduction that mimics sexual reproduction is ______.
Assertion: Apomictic embryos are genetically identical to the parent plant.
Reason: Apomixis is the production of seeds without fertilization.
Apospory is the direct formation of ______.
Which of the following defines apomixis correctly?
- Production of the embryo from an unfertilised egg.
- Production of seed without syngamy.
- Production of fruit without fertilisation.
- Production of seed without meiosis.
- Production of seed without mitosis.
Choose the correct options.
Give significance of apomixis.
Explain following term:
Apomixis
What is Apomixis?
Who coined the term Apomixis?
In recurrent apomixis, the nuclei of the embryo sac are of which ploidy?
Which two sub-categories exist under Agamospermy in recurrent apomixis?
In Somatic Apospory, which cell develops into a diploid \[2n\] embryo sac?
What is another name for Apospory?
Which is an example of non-recurrent apomixis?
Which statement expresses the role of Apomixis in crop improvement?
Non-recurrent apomixis is useful in which studies?
Scientists are trying to introduce apomixis into which crops for better food production?
