Question

Match the items and find the correct option.

	I		II
(a)	Morgan	$1$	Induced mutation
(b)	Lysenko	$2$	Photoperiodism
(c)	Muller	$3$	Term genetics
(d)	Garner and Allard	$4$	Vernalization
		$5$	Linkage

• A. a-$2$, b-$1$, c-$3$, d-$4$
• B. a-$4$, b-$3$, c-$2$, d-$5$
• C. a-$5$, b-$4$, c-$1$, d-$2$
• D. a-$3$, b-$2$, c-$4$, d-$1$

Answer 1

The correct option is C a-$5$, b-$4$, c-$1$, d-$2$

• Vernalisation is defined as the qualitative or quantitative dependence of plants on exposure to a low temperature to flower. It was discovered by Lysenko.
• Hermann Joseph Muller conducted three experiments in 1926 and 1927 that demonstrated that exposure to x-rays, a form of high-energy radiation, can cause genetic mutations, changes to an organism's genome, particularly in egg and sperm cells.
• The effect of photoperiods or the daily duration of light hours (and dark periods) on the growth and development of plants, especially flowering, is called photoperiodism. Photoperiodism was first studied by Garner and Allard.
• A linkage is a phenomenon where two or more linked genes are always inherited together in the same combination for more than two generations. The phenomenon of linkage was studied by the scientist T.H. Morgan using the common fruit fly or Drosophila melanogaster.

So, the correct answer is 'a-5, b-4, c-1, d-2'.