Waxy endosperm (wx), shrunken endosperm (sh), and yellow seedling (v) are encoded by three recessive genes in corn that are linked on chromosome 5.A corn plant homozygous for all three recessive alleles is crossed with a plant homozygous for all the dominant alleles.The resulting F1 are then crossed with a […]

In a cohort study that found an association between alcohol consumption and bladder cancer, 20,000 middle-aged men were asked about their drinking habits and then tracked for five years to watch for the development of cancer. Researchers asked the men about their diet and exercise habits, but not about smoking. […]

1. What are some ways to increase genetic variability of diversity in sexually reproducing organisms? 2. Compare the flow of electrons  through the cyclice and non cyclic  photophosphorylation  provide examples of photosynthesis for both pathways 3. What were the main conclusions of Darwin’s five-year voyage aroundthe world?( Include research about […]

If you took all of the nuclear DNA in your body and lined it up end to end, would it be long enough to reach the moon? If so, how many times would it reach the moon and back? (Assume you have 50 trillion cells.) Is it the same for […]