The polytene chromosomes were discovered for the first time in
- AChironomus
- BFruit fly
- CDrosophila
- DHouse fly
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Similar Questions
Match the organism with the correct number of chromosomes present in its somatic cells.
List-$I$ List-$II$ $(a)$ Human $(1)$ $24$ $(b)$ Apple $(2)$ $20$ $(c)$ Maize $(3)$ $34$ $(d)$ Rice $(4)$ $46$
| List-$I$ | List-$II$ |
| $(a)$ Human | $(1)$ $24$ |
| $(b)$ Apple | $(2)$ $20$ |
| $(c)$ Maize | $(3)$ $34$ |
| $(d)$ Rice | $(4)$ $46$ |
Easy
View SolutionMatch 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 SolutionBalbiani rings (puffs) are sites of:
MediumAIPMT 1993
View SolutionChromosomes having equal or almost equal arms are called
Easy
View SolutionThe width of the perinuclear space is $.............$.
Medium
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