19. All of the following are reactants of the Krebs Cycle except: a. carbon dioxide
b. pyruvate
C. ADP
d. NAD+

If a set of instructions that determines all of the charactersitics of an organism is comparedto a book,and a chromosme is compared to chaper in the book,then what might be compared to a paragraph in the book?

Which of the following can be assumed about the layers in areas 2 and 4

What trait will a heterozygous individual express? a.neither dominant or recessive b.dominant c.recessive