Mention any three ways through which pathogens are transmitted

The probability of producing a normal child by two parents who are carriers for an autosomal recessive disorder is

Freckles are a dominant trait in humans. both of the girls have the genotype ff for freckles. if either one marries a man with no freckles, what are the chances that their children will have freckles?

Which short-term environmental change is most likely to lead to ground shifting, landslides, and the collapse of buildings or roads? forest fires flooding earthquakes