Question

Which was the last human chromosome to be completely sequenced:

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

Answer 1

The correct option is B Chromosome 1

Chromosome 1:

• Humans have 23 pairs of chromosomes.
• Amongst them, chromosome 1 is the largest chromosome and has the most number of genes, that is, 2968 genes.
• It was the last human chromosome to be sequenced completely in the Human Genome Project in 2006.

Final answer: a. Chromosome 1