Question

Sperms of both Funaria and Dryopteris were placed near the archegonia of Dryopteris. Only sperms of Dryopteris entered the archagonia and reached the egg because of

A. Less motility of Funaria sperms which

B. Dryopteris archegonia secrete chemicals attracts dryopteris sperms only

C. Dryopteris archegonia secrete chemical to repel Funaria sperms

D. Funaria sperms are killed when mixed with Dryopteris sperms

Answer : Dryopteris archegonia secrete chemicals attracts dryopteris sperms only

Releted Question 1

Which of the following pairs is of unicellular algae?

A. Gelidium and Gracilaria

B. Anabaena and Volvox

C. Chlorella and Spirulina

D. Laminaria and Sargassum

Releted Question 2

A. Amylopectin and glycogen

B. Mannitol and algin

C. Laminarin and cellulose

D. Starch and cellulose

Releted Question 3

A. Uniflagellate gametes – Polysiphonia

B. Biflagellate zoospores – Brown algae

C. Unicellular organism – Chlorella

D. Gemma cups – Marchantia

Releted Question 4

A. Neurospora

B. Alternaria

C. Saccharomyces

D. Agaricus