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5.Molecular Basis of Inheritance
normal
Polytene chromosomes were first observed by
A
Batanetzky-$1980$
B
Heitz and Bauer -$1935$
C
Balbiani -$1881$
D
Stevens and Wilson -$1905$
(AIIMS-1985)
Solution
(c)Polytene chromosome were discovered by Balbiani $(1881)$ in salivary gland cells of larvae of chironomus tantans.
Standard 12
Biology
Similar Questions
Match the following genes of the Lac operon with their respective products.
| $(a)\; i$ gene | $(i)\; \beta-$galactosidase |
| $(b)\; z$ gene | $(ii)$ Permease |
| $(c)\; a$ gene | $(iii)$ Repressor |
| $(d)\; y$ gene | $(iv)$ Transacetylase |
Select the correct option.
$(a)\quad (b)\quad (c)\quad (d)$
