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प्रश्न
The number of chromosomes in the leaf cells of a male plant is 40 and in the stem cells of a female plant is 60. If they are artificially hybridised, what will be the number of chromosomes in the endosperm?
उत्तर
80
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संबंधित प्रश्न
Some organisms suspend their metabolic activities to survive in unfavourable conditions. Explain with the help of any four examples.
Describe the development of endosperm after double fertilisation in an angiosperm.
Draw a labelled mature stage of a dicotyledonous embryo.
Describe the formation of helobial endosperm
______ is the first cell of female gametophytic generation in angiosperms.
Identify the CORRECT statement/s from the following.
i. In post-fertilization changes within the ovule, the development of embryo is followed by the development of endosperm.
ii. Helobial endosperm is intermediate between cellular and nuclear type endosperm.
iii. Helobial endosperm is mostly observed in 72 families of dicots.
If an angiospermic male plant is diploid and female plant tetraploid, the ploidy level of endosperm will be ______.
Indentify the wrong statement regarding post-fertilisation development.
Mark the odd one.
The diagram given below shows the three types of endosperms in angiosperms.
 |
 |
 |
| Type 1 | Type 2 | Type 3 |
- Identify the three types of endosperms shown above.
- Name the type of endosperm which commonly occurs in polypetalous dicots.
