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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?
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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.
Draw a labelled mature stage of a dicotyledonous embryo.
Describe the development of an endosperm in a viable seed. Why does endosperm development precedes embryo development?
______ 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.
At what stage of endosperm development, will you observe nuclear or cellular type of endosperm?
In angiosperms, triple fusion is required for the formation of ______.
The type of evolution where the central part is occupied by free nuclear and the peripheral part by cells is observed in ______.
Helobial type endosperm is an intermediate between nuclear and cellular types and is characteristic of which taxonomic group?
During the post-fertilisation development inside the ovule, how do the embryo and endosperm develop relative to each other?
