The core of nucleosome is made up of
$H_1, H_2A, H_2B, H_3$
$H_1, H_2A, H_2B, H_4$
$H_1, H_2A, H_2B, H_3, H_4$
$H_2A, H_2B, H_3, H_4$
How many chromosomes are present in an unfertilized egg
A normal metaphase chromosome with a midial centromere is
Match List $I$ with List $II$.
List $I$ | List $II$ |
$A$. Gene $a$ | $I.\; \beta$-galactosidase |
$B$. Gene $y$ | $II$. Transacetylase |
$C$. Gene $i$ | $III$. Permease |
$D$. Gene $z$ | $IV$. Repressor protein |
Choose the correct answer from the options given below:
Lampbrush chromosomes are visible
The pairing of bivalent synapsis occur in