Certain gene mutations can cause genetic disorders. However the same gene can also have a positive effect. The genetic mutation that led to sickle cell anemia can also give its carriers protection from which of the following diseases? A.
strep throat
B.
Type I diabetes
C.
malaria
D.
hemophilia

Which of the following is not a product of the second stage of glycosis

Which greenhouse gas is emitted when burn fossil fuels for energy? a.nitrogen b.oxygen c.carbon dioxide d.helium

Which of these is true of the cytoplasm of an unfertilized egg? a. it is an unevenly distributed mixture of mrna, proteins, organelles, and other substances. b. it does not contain substances that are important in directing development. c. these substances are supplied by the sperm. d. it does not contain substances that are important in directing development. e. development is directed solely by the surrounding cells. f. it is a homogeneous mixture of mrna, proteins, organelles, and other substances. g. it does not contain substances that are important in directing development. h. these substances are produced by the dna of the fertilized zygote.