Mention one characteristic of each of Leptotene, Zygotene and Pachytene of Prophase-1 of Meiosis.

Mention one characteristics of fuse wire.

Mention one main feature of leptotene, pachytene, diakinesis of meiosis 1 prophase.

Mention one principle character of each of the first three stages of prophase-I.

Stages in proper sequence of prophase I are 1. Leptotene - Zygotene -Pachytene - Diplotene - Diakinesis 2. Leptotene - Zygotene - Pachytene - Diakinesis - Diplotene 3. Leptotene - Zygotene -Pachytene - Diakinesis 4. Leptotene - Pachytene - Diplotene - Zygotene - Diakinesis

Enumerate one characteristic of each : Sanctuary, National park , Reserve forest.

mention any one characteristic of ammonia as a nitrogenous metabolic waste, which of the following animals is /are ammonotelic: Camel, whale, Hydra, Frog?

Mention any four characteristics features of phylum Mollusca. Write the scientific name of any one animal belonging to this phylum.

Mention one importance of each of Auxin, gibberellin and Abscisic acid in plant growth.

Mention one use of each of acetic acid and ethyl alcohol.

When does terminalization of chiasma occur? 1. Zygotene 2. Pachytene 3. Diplotene 4. Metaphase-I.