Question

A multicellular, filamentous alga exhibits a type of sexual life cycle in which the meiotic division occurs after the formation of zygote. The adult filament of this alga has?

• A. Haploid vegetative cells and haploid gametangia
• B. Diploid vegetative cells and diploid gametangia
• C. Diploid vegetative cells and haploid gametangia
• D. None of these

Answer 1

Answer: (A)

A multicellular, filamentous alga exhibits a type of sexual life cycle in which the meiotic division occurs after the formation of zygote. The adult filament of this alga has haploid vegetative cells and haploid gametangia. This type of life cycle is called the haplontic life cycle.

So, the correct answer is 'Haploid vegetative cells and haploid gametangia'.