Question

Which was the last human chromosome to be completely sequenced ?

• A. Chromosome $1$
• B. Chromosome $11$
• C. Chromosome $21$
• D. Chromosome $X$

Answer 1

Answer: (A)

The sequence of chromosome $1$ was completed in May $2006$. This was the last of the $24$ human chromosomes -$22$ autosomes and $X$ and $Y$ - to be sequenced.