Which hemoglobin genotype has the highest fitness in an area of high malaria infection?

a. HbAA
b. HbAS
c. HbSS
d. All are equal


Answer: b. HbAS

Biology & Microbiology

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The smallest sub-atomic particle is the ______

A. ion B. electron C. proton D. isotope E. neutron

Biology & Microbiology

Which time period has the greatest richness of fossilized invertebrates?

A) Cambrian B) Carboniferous C) Cretaceous D) Cenozoic

Biology & Microbiology

Bacteria with DNA described as having "hairpin ends with inverted repeats" must not have circular chromosomes. 

Answer the following statement true (T) or false (F)

Biology & Microbiology

Which of the following does not contain a heavy metal?

A. mercurochrome B. zinc C. merthiolate D. silver nitrate solutions E. tincture of iodine

Biology & Microbiology