Imagine a plant species where the pollen tube enters the embryo sac through the chalaza instead of the micropyle (chalazogamy). Which of the following would be the LEAST affected by this unusual entry pathway?
The path of pollen tube growth within the style.
The interaction between the pollen tube and the synergids.
The genetic makeup of the sperm cells.
The timing of pollen tube discharge into the embryo sac.
Related Questions
In angiosperm functional megaspore develops into
Embryo sac
Ovule
Endosperm
Pollan sac
Polygonum type of embryosac is?
Bisporic, 8 nucleate
Monosporic, 4 nucleate
Tetrasporic, 16 nucleate
Monosporic, 8 nucleate
In the fully organized Polygonum type of embryo sac, what is the ratio of haploid, diploid and triploid nuclei?
For the formation of tetrasporic embryo sac, how many megaspore mother cells are required?
One
Two
Three
Four
8-nucleated embryo sac are
Monosporic
Bisporic
Tetrasporic
Any of these
During the formation of embryo sac, the functional megaspore undergoes
Two mitotic divisions
Two meiotic divisions
Three meiotic divisions
Three mitotic divisions
Which one of the following statements is not true?
Pollen grains are released from anthers at 2-celled stage
Sporogenous cell directly behaves as the megaspore mother cell
Megaspore divides twice to form an eight nucleate embryo sac
Egg and synergids always lie near the micropylar end of ovule
A typical angiosperm embryo sac at maturity, is
4 – nucleate, 2 – celled
8 – nucleate, 7 – celled
4 – nucleate, 4 – celled
8– nucleate,4 – celled
Which one of the following statements is not true?
Pollen grains are released from anthers at 2-celled stage
Sporogenous cell directly behaves as the megaspore mother cell
Megaspore divides twice to form an eight nucleate embryo sac
Egg and synergids always lie near the micropylar end of ovule
