Question
Biology Question on Bryophytes
Gemmae are present in:
A
Mosses
B
Pteridophytes
C
Some Gymnosperms
D
Some Liverworts
Answer
Some Liverworts
Explanation
Solution
Gemmae are formed in some liverworts like Marchantia.
The gemmae are referred to as small discs of haploid tissue which can directly give rise to new gametophytes. A gemma (plural gemmae) is either a single cell or a mass of cells, or a modified bud of tissue, that separates from the parent and develops into a new individual. The production of gemmae is a means of widespread asexual reproduction in both liverworts and mosses. In liverworts such as Marchantia, the flattened plant body (thallus) is a haploid gametophyte with gemma cups scattered about its upper surface.
Hence, the correct answer is option D.