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Steps of Artificial Hybridization
Steps of Artificial Hybridization
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1)
Which is the correct sequence for artificial experiment in bisexual flowers
Emasculation -> Bagging -> Cross pollination -> Re-bagging
Cross pollination -> Bagging -> Emasculation -> Re-bagging
Bagging -> Emasculation -> Cross pollination -> Re-bagging
Self-pollination -> Bagging -> Emasculation -> Re-bagging
2)
Who first used artificial hybridization in fruit crops?
Knight
Mendel
Karpocho
Jones
3)
The pollen grain is
An immature male gametophyte
Last stage of male gametophyte
A mature male gametophyte
Partially developed male gametophyte
4)
Pollens have two prominent walls which are A and B. Here, A and B refers to
A-sporopollenin, B-exine
A-exine, B-intine
A-sporopollenin, B-intine
A-intine, B-protein coat
5)
60% of the angiosperms shed their pollens at the
3-celled stage
1-celled stage
2-celled stage
4-celled stage
6)
Viability of pollen grains depends on
Temperature and Humidity
Pressure
Humidity
Temperature
7)
Transfer of pollen grains from the anther to stigma of another flower of different plant is called
Geitonogamy
Xenogamy
Cleistogamy
Chasmogamy
8)
Tagging includes ______ information.
Date of emasculation
All of these
Details of male and female plant
Date of pollination
9)
Which are not the agents of pollination.
Wind
Water
Insects
None of these
10)
While planning for an artificial hybridization program involving dioecious plants, which of the following steps would not be relevant?
Emasculation
Collection of pollens
Dusting of pollen on stigma
Bagging of female flower