Blood type is determined by multiple alleles. A woman with type o blood marries a man who is
heterozygous for type B blood.
What is the probability that their first child will have type AB blood?
0%
25%
50%
75%

0%

Explanation: In the ABO blood type, blood types are classified based on the antigens present in the red blood cells. The antigens that are found in the red blood cells are of two types: A antigens and B antigens.

In blood grouping, blood type A contains A antigens, blood type B contains B antigens, blood type AB contains A and B antigens while blood type O has neither A nor B antigens.

These blood groups are controlled by two alleles (a pair of gene). If a woman with type O blood marries a man who is heterozygous for blood type B, none of the children will have blood type AB not even the first child because each child will inherit one allele from each parent.

Therefore, since neither the woman nor the man has antigen A in their system then none of the children will have blood type AB. For an individual to have blood type AB, he must have inherited antigens A and B, one from each parent.

This implies that the probability that the first child will have AB blood type is 0%.

answer: accepted answer: aquatic animals use the oxygen dissolved in water to carry out respiration. since the amount of dissolved oxygen in water is low as compared to the amount of oxygen in the air, therefore the rate of breathing in aquatic animals is much faster than it is in terrestrial animals.

explanation:

1: most common garden plants prefer loam — soils with a balance of different-sized mineral particles (approximately 40% sand, 40% silt, and 20% clay) with ample organic matter and pore space. however, some plants grow better in sandy soils, while others are well-adapted to clay soils.

2: available water capacity is the maximum amount of plant available water a soil can provide. it is an indicator of a soil's ability to retain water and make it sufficiently available for plant use. available water capacity is the water held in soil between its field capacity and permanent wilting point.

3: it is the same for all living things (plants and animals). it also includes very tiny organisms that our eyes cannot see. they are known as microorganisms, and include viruses, bacteria and fungi.