A woman gives birth to a son who has type O blood. She has type B blood. Which of the following can be concluded from this about her parents' blood types? (1 point) Group of answer choices

One of her parents had at least one O allele.

One of her parents had two B alleles.

One of her parents had type B blood and the other type O blood.

One of her parents had type O blood.

answer: "circumcision is a common procedure in which the skin covering the tip of the penis is surgically removed."

it cools slower in the earth meaning the crystals have more time to form than lava on the surface

1. the geologists have established a set of principals that can can be used o determine the relative ages of rock. this principal is applied to sedimentary and volcanic rocks. the rocks exposed to wall of grand canyon has layers and by studying the number of horizontal layers in the rock(strata) the relative age can be determined. the layer first formed will appear at the bottom and the the layer of strata last formed appear at the top. by using this information the approximate age of rocks can be determined.

2. carbon dating is used to find the relative age of rock in numbers which means for the rocks that has age between 1-70,000 years.

3. for the rocks of age range between 1,000 - billion of years potassium-argon dating is used.