In plants meiosis occurs in
Anther
Root tip
Cambium
Pollen grain
Exine of pollen grains is composed of
If root of flowering plant has $24$ chromosomes then its gamete has how many chromosomes?
Draw the diagram of a microsporangium and label its wall layers. Write briefly about the wall layers ?
Which of the following has proved helpful in preserving pollen as fossils?
After demonstration of totipotency, a botanist wishes to produce identical plants from an angiosperm by tissue culture. The parts or tissues which are likely to yield haploid embryos are