The number of chromosomes in the rhizoids of bryophytes is 20. Calculate the number of chromosomes present in the antherozoids of bryophytes.

The main plant body of bryophyte is gametophyte.
Hence, rhizoids as structures of gametophyte have ‘n’ no. of chromosomes.
Here, n=20 chromosomes
Antherozoids are produced from haploid androcytes by mitosis.
Therefore, antherozoid also have ‘n’ number of chromosomes.
Hence, the number of chromosomes in antherozoid is 20