Number of autosomes in human sperm is
$11$
$22$
$44$
$45$
(b)Sperm is haploid structure inwhich twenty two autosome and one $x$ or $y$ chromosome are present.
In recent past human chromosomes have been studied by a technique using specific, often fluorescent dyes, known as
Clover leaf secondary structure of $tRNA$ has a loop for
Select the two correct statements out of the four $(i -iv)$ statements given below about lac operon.
$(i)$ Glucose or galactose may bind with the repressor and inactivate it.
$(ii)$ In the absence of lactose the repressor binds with the operator region.
$(iii)$ The zgene codes for permease.
$(iv)$ This was elucidated by Francois Jacob and Jacques Monod.
The correct statements are
Who used the word "chromosome''
Depending upon size and centromere position, the $46$ chromosomes have been divided into a number of groups
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