3.When Watson and Crick built and proposed the DNA structure, they determined three important features. What were the three features they proposed? Select all that apply.
Multiple select question.
A) Two outside strands consist of alternating deoxyribose and phosphate.
B) Two outside strands consist of alternating ribose and phosphate.
C) Guanine and cytosine bases pair to each other by two hydrogen bonds.
D) Guanine and cytosine bases pair to each other by three hydrogen bonds.
E) Guanine and adenine bases pair to each other by three hydrogen bonds.
F) Cytosine and thymine bases pair to each other by two hydrogen bonds.
G) Adenine and thymine bases pair to each other by three hydrogen bonds.
H) Adenine and thymine bases pair to each other by two hydrogen bonds.
the calvin cycle has three stages. in stage 1, the enzyme rubisco incorporates carbon dioxide into an organic molecule. in stage 2, the organic molecule is reduced. in stage 3, rubp, the molecule that starts the cycle, is regenerated so that the cycle can continue
A,D,H
The backbone of DNA is deoxyribose and phosphate while RNA is composed of ribose and phosphate. C and G (curvy letters pair together) pair together with 3 hydrogen bonds while A and T pair together with 2 hydrogen bonds.
a- multicellular
b-eukaryotic
c-no cell wall
d-heterotrophic
e-autotrophic