The number of genes in $E. coli$ is approximately:

Provide the full forms of the following abbreviations:
$1.$ $HGP$
$2.$ $ESTs$
$3.$ $SA$
$4.$ $BAC$

$A$: $SNPs$ (pronounced as "snips") are common in the human genome.
$R$: These are minute variations that occur at a frequency of one in every $300$ bases.

Select the appropriate option for $EST$.

Dystrophin contains how many million bases?

How many genes are present on the $Y$ chromosome?