EVERYDAY SCIENCE

Detailed explanation-1: -A hallmark of haploid creatures, zygotic meiosis cannot occur in diploid, haplodiplontic, or organisms having alternate life cycles. Chlamydomonas is haploid plant. As Chlamydomonas pertains to kingdom Plantae and division Thallophyta, zygotic meiosis is the characteristic feature observed in them.

Detailed explanation-2: -Explanation: Zygotic Meiosis is one of the main characteristics of Chlamydomonas and Zygotic meiosis occurs in Chlamydomonas only out of all the options mentioned above.

Detailed explanation-3: -Many algae ( Chlamydomonas, Zygnema, Chara, golden algae, dinoflagellates etc) show haplontic life cycle and hence zygotic meiosis.

Detailed explanation-4: -In Chlamydomonas, the zygospore, after usual rest period, germinates on the arrival of favourable condition. It undergoes meiosis to form 4 or rarely 8 biflagellate zoospores.

Detailed explanation-5: -Zygotic meiosis as the name suggests is referred to as the meiosis of zygote. It takes place in some of the lower plants and animals. They don’t form haploid gametes. Sex cells of both male and female are diploid.