In Funaria, 20 chromosomes are present in rhizoids then the number of chromosomes in calyptra, theca and foot will be?

Dear student,
Plant body in funaria is gametophytic (n), therefore n = 20. Calyptra, theca and foot are the part of sporophytic (2n) body. Rhizoids have chromosome number 20 means n = 20. Therefore 2n = 40. So, calyptra, theca and foot have 2n = 40 or chromosome number is 40.

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