NEET Botany
Pteridophytes Heterospory
Low Priority
Consistency: 25%
Weightage: 5 / 20 Yrs
High-Yield Trend
1
2019 1
2011 1
2009 1
2008 1
2007 Questions 5 MCQs
01
PYQ 2007
easy
botany ID: neet-200
In the prothallus of a vascular cryptogam, the antherozoids and eggs mature at different times. As a result:
| 1. | there is no change in the success rate of fertilization |
| 2. | there is a high degree of sterility |
| 3. | one can conclude that the plant is apomictic |
| 4. | self-fertilization is prevented |
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02
PYQ 2008
easy
botany ID: neet-200
Which one of the following is heterosporous?
1. Dryopteris
2. Salvinia
3. Adiantum
4. Equisetum
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03
PYQ 2009
easy
botany ID: neet-200
Which one of the following is considered important in the development of seed habit?
| 1. | Dependent sporophyte | 2. | Heterospory |
| 3. | Halplontic life cycle | 4. | Free-living gametophyte |
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04
PYQ 2011
hard
botany ID: neet-201
Compared with the gametophytes of the bryophytes, the gametophytes of vascular plants tends to be:
| 1. | larger but to have smaller sex organs |
| 2. | larger and to have large sex organs |
| 3. | smaller and to have smaller sex organs |
| 4. | smaller but to have larger sex organs |
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05
PYQ 2019
easy
botany ID: neet-201
From an evolutionary point of view, retention of the female gametophyte with developing young embryo on the parent sporophyte for some time, is first observed in:
| 1. | Gymnosperms | 2. | Liverworts |
| 3. | Mosses | 4. | Pteridophytes |
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