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Male gametophyte of angiosperms/monocots is
Microspore is haploid, uninucleate, minute spore produced in large number as a result of meiosis in microspore mother cell inside the microsporangia. These are the first cell of gametophytic generation in angiosperms.
The type of cells under going meiosis in the flowers are
Which ones produces androgenic haploids in anther cultures?
Androgenic haploids are produced by young pollen grains because rest all are the diploid tissue.
Generative cell was destroyed by laser but a normal pollen tube was still formed because
Each microspore divide by mitotic division making a smaller generative cell and a larger vegetative cell or tube cell. If generative cell is damaged then the normal pollen tube will be formed because pollen tube is formed by vegetative cell, not by generative cell of microspore.
The embryo is carefully taken out of pea seed and sown in the soil and watered normally. New plant will
Embryo can not grow without food stored in cotyledons.
Self-pollination means
Pea seeds are sown in a pot. After emergence of cotyledons, the pot is placed in an aerated dark chamber and watered normally, seedlings will
Cotyledons form food for seedling growth in light.
If there are 4 cells in anther, what will be the number of pollen grains ?
Four microspore mother cells in anther on reductioning division will give rise to 16 microspores.
The viability of pollen grains depends upon
A cutting of rose plantis thoroughly waxed and planted in the soil normally, it will form
Water absorption and gaseous exchange stop due to wax.