Suppose you check the results of your PCR reaction by running the products on a DNA agarose gel (see an explanation of DNA electrophoresis on the next page). After doing so, you discover that there are no bands present (i. e. no products were produced from PCR). How could you explain this result?

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.