A27 year old male with a history of asthma was hospitalized with
afour day history of progressive cough and two days of
spikingfevers. gram-positive cocci in pairs were cultured from
ablood sample. what is the diagnosis?

The diagnosis will show the presence of Streptococcus pneumoniae.

Explanation:

Actually, it is known that cough and fever are associated with all pneumonia. This means that , a culture will be needed to specifically identify the exact type of pneumonia.

In this case, Streptococcus pneumoniae was identified by the gram reaction and a test known as optochin-inhibition test.

The optochin - inhibition test inhibit the growth of streptococcus pneumonia. This occurs at low concentration. Optochin readily mixes with agar medium because it is water soluble.

c) 50% there are four chromosomes. after crossing over, 2 of the four have been changed. that means any gamete has a 2 in 4 chance or 50% chance of receiving the mutated chromosome.