Which of the following does a defect occur in chromosomes? a. phosphase 2 b. anaphrase 1 c, metaphase 2

From the given choices, the most appropriate answer would be B. Anaphrase 1.

Anaphase I is the stage of meiosis I in which homologous chromosomes are pulled towards opposite poles with the help of spindle fibers.

The chromosomal defect which can occur in this stage is "unequal distribution of chromosomes in two daughter cells".

It may occur when the spindle fiber fails to attach to a particular chromosome.

It leads to the production of daughter cell or gamete with extra or decreased number of chromosomes.

When these types of gametes fertilize with other gametes, it may result in aneuploidy in the resulting offspring.

cuz he's blad

explanation:

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.