The $HGP$ (Human Genome Project) led to the development of a new area in biology called .........

In humans,chromosome $1$ has the most genes $(2968)$ and the $Y$ chromosome has the fewest genes $(231)$,respectively.

Which of the following is an incorrect statement $:$
$(A.)$ Chromosome number $(2n-1)$ is an example of monosomy.
$(B.)$ Expressed Sequence Tags $(ESTs)$ refers to novel $DNA$ sequences.
$(C.)$ Due to a high degree of polymorphism,the size of $VNTR$ varies from $0.1$ to $20 \ kb$.

What was used as a host in the $HGP$?

The total number of genes in humans is far less $(< 25,000)$ than the previous estimate (up to $1,40,000$ genes). Comment.

Which vectors are commonly used in the sequencing of the human genome?