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Question
Study the following lists:
List-I List -II
(A) Anucleate (1) Spirogyra gamciangium
(B) Uninucleate (2) Rhizopus chlamydospore
(C) Multinucleate (3) Pteris neck canal cell
(D) Binucleate (4) Vitis matured sieve element
(5) Akinite of Spirogyra
Study the following lists:
List-I List -II
(A) Anucleate (1) Spirogyra gamciangium
(B) Uninucleate (2) Rhizopus chlamydospore
(C) Multinucleate (3) Pteris neck canal cell
(D) Binucleate (4) Vitis matured sieve element
(5) Akinite of Spirogyra
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Solution
The correct option is A A- (IV), B- (I), C- (III), D- (II)
Sieve elements are living cells. They are unique in lacking a nucleus at maturity. A single nucleus is present at the central cytoplasmic mass that holds in the center of vacuole in Spirogyra. Chlamydospores are formed during unfavorable conditions. They are binucleate spores produced in clusters on uredium.
Sieve elements are living cells. They are unique in lacking a nucleus at maturity. A single nucleus is present at the central cytoplasmic mass that holds in the center of vacuole in Spirogyra. Chlamydospores are formed during unfavorable conditions. They are binucleate spores produced in clusters on uredium.
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