Write the palindromic nucleotide sequence that EcoRI reads, and indicate the site of its action.

Name a distinguishing structure seen in a mature black pepper seed and not in a pea seed. State how does it develop?

Why does the insecticidal protein produced by Bacillus thuringiensis not kill the bacterium, but kills the cotton bollworm? Explain.

A tall pea plant bearing violet flowers is crossed with a tall pea plant bearing white flowers. In the F1 progeny, there were tall pea plants with white flowers, tall pea plants with violet flowers, dwarf pea plants with violet flowers and dwarf pea plants with white flowers. Work out the cross to show how is it possible.

Explain the Hardy-Weinberg principle.