Multiple Choice QuestionsDuring replication of DNA, Okazaki fragments are formed in the direction of
3' ➔ 5'
5' ➔ 3'
5'➔5'
3' ➔ 3'
If you want to develop hybrid seeds within a bisexual flower, the following part needs to be removed from the same flower
stigma
ovary
anther
oviduct
Which one of the following statement is correct?
Hard outer layer of pollen is called intine
Sporogenous tissue is haploid
Endothecium produces the microspores
Tapetum nourishes the developing pollen
Advantage of cleistogamy is
higher genetic variability
more vigorous offspring
no dependence on pollinators
vivipary
Monoecious plant of Chara shows occurrence of
antheridiophore and archegoniophore on the same plant
stamen and carpel on the same plant
upper antheridium and lower oogonium on the same plant
upper oogonium and lower antheridium on the same plant
D.
upper oogonium and lower antheridium on the same plant
Monoeciuous plants have both male and female flowers. It has two types of flowers that develop at different parts of the plant. It is also known as homothallic condition. In Chara or green algae, it is used to denote upper oogonium and lower antheridium on the same plant. The organisms, which possess both the reproductive organs are called bisexual. Unisexual condition represents both male or female organs in same organism.
Perisperm differs from endosperm in
being a haploid tissue
having no reserve food
being a diploid tissue
its formation by fusion of secondary nucleus with several sperms
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