Explain in detail the processes leading to biological nitrogen fixation in plants. Ensure you outline how the symbiotic relationship between the bacteria and the plant is developed, the genes involved and the function of different enzymes.

In guinea pigs, black fur (b) is dominant over white fur (b). cross a heterozygous (hybrid) black guinea pig with a homozygous (purebred) white guinea pig. complete a punnett square, identify the genotype(s), phenotype(s), and probability (% and fraction) that the offspring will be black and white?

1)some people believe that certain drugs such as marijuana should be legalized. do you agree or disagree? 2)what impact might legalization have on forensic science as a field? which drug presents the greatest challenges to forensic science? why?

Mutations can be categorized based on the kind of effect they have on an organism