Feulgen reaction is a special test for

Consider the process that a cell uses to replicate its double strand $DNA$ to make copies for daughter cells. Which statement describes the $DNA$ in daughter cells?

Number of $(approximately)$ genes in E. coli are

A pure breeding pea plant with the dominant phenotype of character $A$ and recessive phenotype of character $B$ was crossed with another pure breeding plant with the recessive phenotype of $A$ and dominant phenotype of character $B. A$ offspring of this cross was crossed with a homozygous recessive for both the characters -$A$ and $B$. The following results are obtained $22$ were phenotypically dominant for $A$ and recessive for $B$.

$4$ were phenotypically dominant for both $A$ and $B$.

$4$ were phenotypically recessive for both $A$ and $B$.

$24$ were phenotypically recessive for $A$ and dominant for $B$.

These results show that

Who developed $DNA$ finger printing method ?

Lampbrush chromosomes are visible