Which of the following alleles are homozygous? (select two.)
a. tt
b. tt
c. yy
d. yy

Which would be the most useful source of evidence to support mcneill's contention?

What would most likely happen if green plants were exposed to longer days of sunlight? a. the mitochondria would produce less energy . b. the chloroplasts would produce more energy. c. the cell wall would become thicker. d. the vacuoles would quickly shrink. b. the chloroplasts would produce more energy.

Which of th following is needed for cellular respiration to occur