2. The thyroid gland metabolizes iodine, the most common form of which has a molecular weight of 127 (1271). A physi-
cian wants to use a radioactive isotope of iodine (1231) to
test whether a patient's thyroid gland is metabolizing nor-
mally. Based on what you know about how atoms react,
do you think this physician's plan makes sense or not?

Which statement is not an accurate description of meiosis? a) meiosis produces offspring that are genetically diverse. b) meiosis produces offspring that are identical to the parent. c) in sexual reproduction half of the genetic material comes from the father (sperm) and half of the genetic material comes from the mother (egg). d) meiosis decreases the number of chromosomes by half so that when a sperm fertilizes an egg, the resulting zygote has the correct number of chromosomes.