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Q5 of 27 Page 1

At what stage does the meiosis occur in an organism exhibiting haploidic life cycle and mention the fate of the products thus produced.

Meiosis occurs in an organism exhibiting haploidic cycle at the zygote stage. Thus the product formed will be haploid spores which grow into haploid individuals.


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3

Name the layer of the atmosphere that is associated with ‘good ozone’.

OR


Mention the term used to describe a population interaction between an Orchid growing on a forest tree.


4

What are ‘flocs’, formed during secondary treatment of sewage?

OR


Write any two places where methanogens can be found.


6

You are conducting artificial hybridization on papaya and potato. Which one of them would require the step of emasculation and why? However for both you will use the process of bagging. Justify giving one reason.

7

How would the gene flow or genetic drift affect the population in which either of them happen to take place?

Questions · 27
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