Q. In a natural population of out breeding plants, the variation of the total number of seeds per plant is 16. From natural population, 20 plants are taken into the laboratory and developed into divide true-breeding lines by self-fertilization-with selection for high, low, or medium number of seeds-for 10 generations. […]

In an attempt to mimic the ability of tardigrades to survive space radiation, your research lab is working on protein coverings that could potentially protect vulnerable DNA molecules from space radiation. a) Draw a diagram of a small region of tardigrade DNA helix that is at least partially surrounded by […]

A man has fragile X syndrome. What is his genome like (regarding his sex chromosomes)? If he has a child with a normal woman, what are the chances of the child’s having fragile X syndrome if it is a boy? If it is a girl? What are the possible pedigree […]

Scientific advances are pointing researchers to new ideas about how to reduce the side effects of epilepsy medications and improve therapy options for those resistant to current medications. Ongoing studies in animals and people are also illuminating the subtle changes that take place in the brain shortly before seizures begin. […]