Assume that the occurrence of nitrogen bases in adjacent positions in a DNA strand is random. Identify the minimum number of nucleotides in a DNA strand where GAAT can occur once on the basis of probability?

What is the amino acid sequence in the polypeptide segment translated from the mRNA base sequence of 

AGU- UUU- UCC- GGG- UCG?

From the phytohormones given below, identify the pairs which have mutually opposite influences on Seed germination, stem elongation, and stomatal movement
respectively:

$\left(\mathrm{I}\right) \mathrm{IAA}$

$\left(\mathrm{II}\right) {\mathrm{GA}}_3$

$\left(\mathrm{III}\right)$ Zeatin

$\left(\mathrm{IV}\right) \mathrm{ABA}$

$\left(\mathrm{V}\right)$ ${\mathrm{C}}_2{\mathrm{H}}_4$