Question

Which was the last of the 24 human chromosomes to be completely sequenced?

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

Hint:

Chromosome 1 sequencing was challenging due to its large size and complexity, as it carries the most genes among all human chromosomes.

Answer 1

The Correct Option is A

Step 1: Recall the Human Genome Project.
Chromosome 1 was the last human chromosome to be fully sequenced due to its size and complexity. It contains the largest number of genes and a high number of repetitive sequences, making sequencing particularly challenging.
Final Answer: The last chromosome to be completely sequenced was Chromosome 1.