Practice
previous year questions -learninsta
What will happen if we kill all the organisms in one trophic level ?
Why is damage to the ozone layer a cause for concern ? What steps are being taken to limit this damage ?
Name the organism Mendel used for his experiments. Explain about F1 and F2 progeny obtained by Mendel when he bred tall and short varieties of the organism he experimented with.
(CBSE A.I. 2010, CCE 2012)
(CBSE A.I. 2010, CCE 2012)
Why is DNA copying an essential part of the process of reproduction ?
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