What was the first microbial genome completely sequenced? Group of answer choices Haemophilus influenza Streptococcus pneumonia Mycobacterium tuberculosis Bacillus subtilis

The correct answer is Haemophilus influenza.

Explanation:

Sequencing the genomes of simple and small organisms started the revolution of DNA sequencing. With the betterment in techniques, scientists were able to sequence the genomes of more composite species like humans.  

Haemophilus influenza was the first microbial genome, which was sequenced completely in 1995. It refers to a non-locomotive rod-shaped bacterium, which results in the condition known as meningitis. The sequencing of the microbe was led by the scientist Craig Ventor with his colleagues at the Institute for Genomic Research, USA. Haemophilus influenza comprises one chromosome and approximately 1.8 million bases.