Polytene chromosomes were first observed by
- ABatanetzky-$1980$
- BHeitz and Bauer -$1935$
- CBalbiani -$1881$
- DStevens and Wilson -$1905$
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Similar Questions
$A$: Lampbrush chromosomes show transcriptionally active loops.
$R$: Informosomes can be used in future for embryo development.
$R$: Informosomes can be used in future for embryo development.
Medium
View SolutionDepending upon size and centromere position,the $46$ chromosomes have been divided into a number of groups.
Match the following columns correctly:
Column-$I$ Column-$II$ $(a)$ Acrocentric $(p)$ Centromere slightly away from the middle $(b)$ Telocentric $(q)$ Centromere in the middle $(c)$ Submetacentric $(r)$ Centromere near the end $(d)$ Metacentric $(s)$ Centromere at the terminal end
| Column-$I$ | Column-$II$ |
| $(a)$ Acrocentric | $(p)$ Centromere slightly away from the middle |
| $(b)$ Telocentric | $(q)$ Centromere in the middle |
| $(c)$ Submetacentric | $(r)$ Centromere near the end |
| $(d)$ Metacentric | $(s)$ Centromere at the terminal end |
Medium
View SolutionWhat will happen if the nucleus is removed from a cell?
Medium
View SolutionPolytene chromosomes in salivary glands are formed by the pairing of:
MediumAIPMT 1993
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