Graph the information to see the yield of the three varieties of grain. Parents AA Aa 1000 aa First Generation 250 500 250 Second Generation 375 250 375 Third Generation 437 125 437 Fourth Generation 469 62 469

Name the methods employed in animal breeding. According to you whichof the methods is best? Why?

Data arising from large population studies of vitamin D status suggested that vitamin D was protective against a variety of chronic diseases, including breast cancer. This led to some health agencies recommending very high amounts of vitamin D as supplements. As time passed, more recent prospective studies and intervention trials have not supported the importance of very high vitamin D intakes; only women with very low vitamin D in the blood appear to be at greater risk for breast cancer. Which of the following statements accurately describes the research and the evidence? A. Evidence from the large population studies is highly valuable because the huge sample sizes allow scientists to draw conclusions about cause and effect. B. Prospective studies are more reliable than population studies, because the data on vitamin D intake (and sunlight exposure) are collected before breast cancer is diagnosed. C. Large vitamin D supplementation intervention trials that include a control (placebo)…