Ophioglossum has 630 chromosomes in its gametes. Calculate the number of chromosomes present in root cells of this organism.

Ophioglossum (a fern) has 630 chromosomes in its gametes. The root cells belong to the sporophytic plant body. Therefore, they have double the number of chromosomes present in the root cells, i.e., (630 x 2= 1260 chromosomes).