The answer is choice B.
Nondisjunction happens when the chromosomes don't separate correctly during meiosis, which can result in an extra copy of certain chromosome.
I hope this helped a little bit.
Answer:
By age group, in 2019, the number of new HIV diagnoses was highest among people aged 25 to 29. From 2015 through 2019, HIV diagnoses increased among persons aged 13-24 years, 35-44 years, and 45-54 years.
The pulmonary veins are the exceptions.
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The pulmonary veins are the veins that are part of pulmonary circulation and those veins transfer oxygenated blood from the lungs to the heart. <span> Two veins, one from each lung transport the blood to the </span><span>left atrium<span> of the heart.</span></span></span>
