When a man has an allele combination Ww for a trait, what percentage of his gametes (sperm cells) will have a dominant allele for that trait? Answer format: XX%

Explanation:

Gametes are haploid cells, and in humans, gametes each has only one allele.

The distribution of alleles is random, so on the average, 50% will have W (dominant allele) and the other 50% will have the w (recessive allele).

the oxygenated blood then leaves the lungs through pulmonary veins, which return it to the left heart, completing the pulmonary cycle. this blood then enters the left atrium, which pumps it through the mitral valve into the left ventricle. from the left ventricle, the blood passes through the aortic valve to the aorta.

deoxygenated blood leaves through the right ventricle through the pulmonary artery. from the right atrium, the blood is pumped through the tricuspid valve (or right atrioventricular valve), into the right ventricle.

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