Different types of chromosomes can be recognised by the position of the following separating the two arms
Sometimes cattle or even human beings give birth to their young ones that are having extremely different sets of organs like limbs/position of eye(s) etc. Comment.
The segment of $DNA$ which acts as the instrumental manual for the synthesis of the protein is:
Chromosome having centromere in its middle is
$DNA$ elements, which can switch their position, are called