A population has an allele R with a frequency of 40 percent. What is the frequency of the genotype RR?
A.
2 percent
B.
16 percent
C.
60 percent
D.
80 percent

Could someone me with number one you

Which of the following would be a body response when stepping outside without a coat on a snowy day? a. senaceous glands. secrete more senum b. more liquid is transported by the body to the skin fir insulation c. blood vessels in the skin narrow and contract d. blood vessels in the skin expand

What causes darkening of the skin as melanin production increases