What would be the number of chromosomes of the aleurone cells of a plant with 42 chromosomes in its root tip cells?

1.632.84
3.214.42

Subtopic:  Seed |
 61%
AIPMT - 2011
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

Wind pollination is common:
1.  lilies
2.  grasses
3.  orchids
4.  legumes
Subtopic:  Pollination & Outbreeding Devices |
 87%
From NCERT
AIPMT - 2011
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Nucellar polyembryony is reported in species of:

1.  Gossypium

2.  Triticum

3.  Brassia

4.  Citrus

Subtopic:  Apomixis & Polyembryony |
 87%
From NCERT
AIPMT - 2011
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
Links
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

In which one of the following pollination is autogamous?
1.  Xenogamy
2.  Chasmogamy
3.  Cleistogamy
4.  Geitonogamy
Subtopic:  Pollination & Outbreeding Devices |
 81%
From NCERT
AIPMT - 2011
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Transfer of pollen grains from the anther to the stigma of another flower of the same plant is called:

1. xenogamy

2. geitonogamy

3. karyogamy

4. autogamy

Subtopic:  Pollination & Outbreeding Devices |
 92%
From NCERT
AIPMT - 2010
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Wind pollinated flowers are:

1. small, brightly coloured, producing large number
of pollen grains
2. small, producing large number of dry pollen grains
3. large, producing abundant nectar and pollen
4. small, producing nectar and dry pollen

Subtopic:  Pollination & Outbreeding Devices |
 80%
From NCERT
AIPMT - 2010
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

An example of a seed with endosperm perisperm and caruncle is:

1. cotton

2. coffee

3. lily

4. castor

Subtopic:  Endosperm |
 75%
AIPMT - 2009
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

Which one of the following pairs of plant structures has a haploid number of chromosomes?
1. Megaspore mother cell and antipodal cells
2. Egg cell and antipodal cells
3. Nucellus and antipodal cells
4. Egg nucleus and secondary nucleus
Subtopic:  Pistil: Female Gametophyte |
 72%
AIPMT - 2008
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

Endosperm is consumed by developing embryo in the seed of:

1. coconut

2. castor

3. pea

4. maize
Subtopic:  Endosperm |
 71%
AIPMT - 2008
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

Unisexuality of flowers prevents:

1. autogamy, but not geitonogamy

2. Both geitonogamy and xenogamy

3. geitonogamy, but not xenogamy

4. autogamy and geitonogamy

Subtopic:  Pollination & Outbreeding Devices |
 59%
From NCERT
AIPMT - 2008
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
Links
To view explanation, please take trial in the course.
NEET 2025 - Target Batch