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Regarding Sexual reproduction in Algae - Match the following and choose the most appropriate option: (each option on both columns can be matched to multiple option on the another side ie right or left) eg. A-1,2 ; B,C,D-3 ; A,B,C-3,4

A. flagellated and 1. Fucus
B.non-flagellated 2. Volvox
C. similar in size 3. Spirogyra
D. dissimilar in size 4. Chlamydomonas
E. female gamete 5. oogamous
F. male gamete 6. large, non-motile
7. smaller, motile
8. anisogamous
9. isogamous.

( A ) A,C-3,9; B,D-4,9; D-1,8; E-6; F-7; E,F-2,4,5
( B ) A,C-4,9; B,C-3,9; D-4,8; E-6; F-7; E,F-1,2,5
( C ) A,C-4,8; B,C-3,9; D-1,2,5; E-7; F-6;
( D ) A,C-4,8; B,C-3,9; D-2,8; E-7; F-6; E,F-1,4,5

1 Answer

(B) is the right answer.

Sexual reproduction takes place through fusion of two gametes. These gametes can be flagellated and similar in size (as in Chlamydomonas) or non-flagellated (non-motile) but similar in size (as in Spirogyra). Such reproduction is called isogamous. Fusion of two gametes dissimilar in size, as in some species of Chlamydomonas is termed as anisogamous. Fusion between one large, non-motile (static) female gamete and a smaller, motile male gamete is termed oogamous, e.g., Volvox, Fucus.
answered Apr 2, 2014 by pady_1

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