What is the role of mRNA is expressing specialized structures

If the frequency of the p allele is .63 in the population then what is the frequency of the q allele?

Why do we perceive objects as retaining their brightness under different lighting levels?

Under the soviet system, the government a. controlled all forms of communication. b. allowed newspapers to print whatever they wanted. c. controlled editorials but not the reporting of news. d. encouraged access to a wide variety of news sources. select the best answer from the choices provided a b c d