Question

Answer in one sentence only.
(i) What is test cross?
(ii) What is mycoherbicide?
(iii) What is anticodon?
(iv) What is humification?
(v) How CO${}_2$ makes idlies puffy?
(vi) What is ecological succession?

Answer 1

$\left(i\right)$ A cross between individual with unknown genotype for a particular trait with a recessive plant for that trait is called test cross.
$\left(ii\right)$ Microbes used as herbicides are called mycoherbicide. For example, Phytopthora palmivora.
$(iii$ Triplet of nucleotides present on the anticodon loop of t-RNA which is complementary to the codon of mRNA is called anticodon.
$\left(iv\right)$ Humification is the formation of humus which is a dark coloured amorphous substance by the decomposition of the dead organic matter by the action of bacteria and fungi.
$\left(v\right)$ The bubbles of C02C02 trapped in glutein make idlies puffy, which is produced by the anaerobic respiration of some microbes, like yeast (Saccharomyces) species.
$\left(vi\right)$ The gradual (and predictable) change in the species composition of a given area is called ecological succession.