Acity bus travels along its route from jackson street 8 km to aurora avenue, where it turns and continues 13 km.

What is the chance of two parents with blood types ab and o producing an offspring with blood type o a.0% b.25% c.75% d.50%

If the frequency of the p allele is .63 in the population then what is the frequency of the q allele?

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?