6. In a population which is in Hardy-Weinberg equilibrium, what would be the frequency of heterozygotes for alleles A and a (i. e. genotype Aa), when the frequency of the allele a is 0.6?

a. 1.2
b. 0.16
c. 0.48
d. 0.45

Please show formula. I am lost

Which of the four major uses is predicted to change the least by 2020?

Cpr, or cardiopulmonary resuscitation, is a first-aid technique to save lives. it involves compressions of the patient's chest cavity. which description is the best description of the functions of chest compressions in cpr? chest compressions are done to pump the heart. chest compressions are done to strengthen the rib bones. chest compressions increase carbon dioxide inhalation. chest compressions allow the patient's muscles to wake up.

Need the diagram below, which is not drawn to scale, shows the position of the earth, moon, and sun. what type of eclipse occurs when the earth, moon, and sun are lined up in the order shown? a. planetary eclipse b. solar eclipse c. martian eclipse d. lunar eclipse