|
All papaya plants bear flowers but fruits are seen in some.Explain
|
|
0
|
10247
|
August 27, 2016
|
|
Describe the characteristic features of wind-pollinated flower
|
|
0
|
12629
|
August 27, 2016
|
|
Write the mode of pollination in Vallisneria and water lily. Explain the mechanism of pollination in Vallisneria
|
|
0
|
6248
|
August 27, 2016
|
|
Explain the steps that ensures cross-pollination in an autogamous flower
|
|
0
|
2560
|
August 27, 2016
|
|
Make a list of any three outbreeding devices that flowering plants have developed and explain how they help to encourage cross-pollination
|
|
0
|
11767
|
August 27, 2016
|
|
Identify the type of flower shown in A and B.Which out of the two will produce an assured seed set?
|
|
1
|
1558
|
August 27, 2016
|
|
How does the study of different parts of a flower help in identifying wind as its pollinating agent?
|
|
0
|
5308
|
August 27, 2016
|
|
State one advantage and one disadvantage cleistogamy
|
|
0
|
1636
|
August 27, 2016
|
|
Geitonogamous flowering plants are geneticallu autogamous but functionally cross-pollinated
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|
0
|
641
|
August 27, 2016
|
|
State the similarity and differences between geitonogamy and xenogamy?
|
|
1
|
3123
|
August 27, 2016
|
|
Coconut palm is monoecious, while date palm is dioecious. Why are they so called?
|
|
0
|
2014
|
August 27, 2016
|
|
Write the differences between wind-pollinated and insect-pollinated flowers.Give an example of each type
|
|
0
|
2312
|
August 27, 2016
|
|
Mention the site where syngamy occurs in amphibians and reptiles respectively
|
|
0
|
2281
|
August 27, 2016
|
|
Viola and Oxalis produce two type of flower,one is chasmogamous flower.Name the other types
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|
0
|
554
|
August 27, 2016
|
|
Why do the pollen grains of vallisneria have a mucilagenous covering?
|
|
0
|
494
|
August 27, 2016
|
|
Name phase all organisms have to pass through before they can reproduce sexually
|
|
0
|
781
|
August 27, 2016
|
|
Name type of cell division that takes place in the zygote of an organism exhibiting haplontic life cycle
|
|
0
|
548
|
August 27, 2016
|
|
Some animals like honey bees are called parthenogenetic animals
|
|
0
|
3246
|
August 27, 2016
|
|
The turkey usually produces females several generations.How is this possible?
|
|
0
|
775
|
August 27, 2016
|
|
Why is whiptail lizard referred to as parthenogenetic?
|
|
0
|
1539
|
August 27, 2016
|
|
How do the pollen grains of Vallisneria protect themselves?
|
|
0
|
2770
|
August 27, 2016
|
|
Name the common phenomenon with reference to reproduction in rotifers,honey bees and turkey
|
|
0
|
1979
|
August 27, 2016
|
|
If the stamens are well exposed,usually which mode of pollination the plant is expected to follow?
|
|
0
|
1911
|
August 27, 2016
|
|
Why do cleistogamous flowers assure seed sets?
|
|
0
|
1777
|
August 27, 2016
|
|
Name any two organisms and the phenomenon involved where the female gamete undergoes development to form new organisms without fertilization
|
|
0
|
1330
|
August 27, 2016
|
|
What is pollen-pistil interaction and how is it mediated?
|
|
0
|
3928
|
August 27, 2016
|
|
Describe the development of a 7-celled female gametophyte from a megaspore mother cell in an angiosperm
|
|
1
|
2086
|
August 27, 2016
|
|
Explain the process of microsporogenesis in angiosperms
|
|
1
|
27584
|
August 27, 2016
|
|
Describe the process of megasporogenesis of angiosperms until the 8-nucleate stage
|
|
1
|
20354
|
August 27, 2016
|
|
Draw a labelled diagram of sectional view of mature embryo sac of an angiosperm
|
|
1
|
3881
|
August 27, 2016
|