Advertisements
Advertisements
प्रश्न
If the haploid number of chromosomes in a plant species is 20, how many chromosomes will be
present in the cells of the shoot tip?
उत्तर
The number of chromosomes in the cells of shoot tip will be 40 as shoot tip cells are meristematic cells which are diploid cells (2n).
APPEARS IN
संबंधित प्रश्न
Why is non-cyclic photo phosphorylation considered as a non-cyclic pathway?
With the help of diagrams, name and describe the different types of placentation seen in angiosperms.
Define: Actinomorphic symmetry
Draw a neat labelled diagram of L.S. of anatropous ovule.
Discuss the role of cambium in the secondary growth of dicot stems.
Draw a neat labelled diagram of the vertical section of a monocot leaf.
The figure given below shows the early stage of the development of microsporangium.
Name the hypodermal cell labelled '1' which divides periclinally.
Draw a neat and well labelled diagram of T.S. of the mammalian ovary.
| Meena had grown Rose and China-rose plants in her garden. She collected pollen grains from China-rose plants and sprinkled them on the stigma of the Rose flowers, as she wanted to grow a hybrid variety of Rose. |
- Will this pollination give the desired results? Give a reason for your answer.
- What is geitonogamy? Why is it considered equivalent to cross-pollination in ecological context and self-pollination in genetic context?
