Hugo de Vries proposed the Mutation theory by studying the plant called . . . . . . .

Mutations occur:

In a mutational event,when adenine is replaced by guanine,it is a case of

Which of the following mutagens causes frame-shift mutations?

The type of genetic mutation that involves the substitution of a purine with a pyrimidine or vice versa (or the replacement of one type of base with another type of base) is known as:

The following diagram shows two chromosomes and the letters represent the genes.
Chromosome $1$:

$P$

$Q$

$R$

$S$

$T$

$U$

$V$

$W$

Chromosome $2$:

$E$

$F$

$G$

$H$

Which of the following would result if a translocation occurred between chromosome $1$ and $2$?