What does the discovery of the structure of dna illustrate about the science is done?
(from : the race for the double helix.)

Which system revise and send electrical signals throughout the body

In the diagram below, the northern hemisphere would be in what season at position a a. fall b. winter c. summer d. spring

Pink fur (p) is dominant to purple fur (p) in hamsters. two heterozygous pink hamsters are crossed. what is the probability that these two parents will have an offspring with purple fur? 2/4, 1/2 or 50% 1/4 or 25% 3/4 or 75% 4/4 or 100% there is no chance for this type of offspring