The main difference between Gram-positive $(+ve)$ and Gram-negative $(-ve)$ bacteria lies in their $........$.

In blue-green algae,photosynthesis occurs in .........

Select an incorrect statement for $F^{+}$ bacteria.

$S$ - Statement: Bacteria are divided into two groups based on the staining procedure developed by Gram.
$R$ - Reason: Bacteria that take up the Gram stain are called Gram-negative.

$A$ characteristic feature linking Monera is .........

There is no alternation of generation in $Escherichia$ $coli$ because there is no