Biology
A pure breeding red flower variety of pea plant (RR) is crossed with a pure breeding white flower variety of pea plant (rr). Draw a Punnett square to find out the Phenotypic and Genotypic ratios of the progeny belonging to the F2 generation.
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Give suitable explanation for the following:
On a bright sunny day, the leaves of certain plants roll up.
What is a semi permeable membrane? Name the semi permeable membrane present in a plant cell.
Define Mutation
A potted plant with variegated leaves was kept in dark for 24 hours and then placed in bright sunlight. Answer the following questions.
(a) Which aspect of photosynthesis is being tested in the above diagram?
(b) Why was the plant kept in dark for 24 hours?
(c) After the starch test what will be the colour of the yellow and green parts of the leaf? Give reasons to support your answer.