Subject SAT (College Board) Biology: Questions 618 - 622 of 824
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Question number: 618
Question
Spot the enzymes eliminate supercoiling in replicating DNA ahead of the replication fork?
Choices
| Choice (5) | Response | |
|---|---|---|
a. | DNA polymerases | |
b. | Helicases | |
c. | Primases | |
d. | Topoisomerases | |
e. | None of the above | |
Question number: 619
Question
Carbohydrates are commonly found as starch as a storage material. Which of the following properties (from A- E) of starch make it useful as a storage material?
Easily translocated
Chemically non-reactive
Osmotically inactive
Synthesized during photosynthesis
Easily digested by animals
Choices
| Choice (5) | Response | |
|---|---|---|
a. | 1,4, 5 | |
b. | 2,4 | |
c. | 1,3, 5 | |
d. | 1,5 | |
e. | All of the above | |
Question number: 620
Question
The fundamental principle of embryonic development were pronounced by
Choices
| Choice (5) | Response | |
|---|---|---|
a. | Morgan | |
b. | Haeckel | |
c. | Von Baer | |
d. | Weismann | |
e. | Question does not provide sufficient data or is vague | |
Question number: 621
Question
The contrasting pairs of factors in Mendelian crosses are called
Choices
| Choice (5) | Response | |
|---|---|---|
a. | multiple alleles | |
b. | alloloci | |
c. | polygenic inheritance. | |
d. | co dominance | |
e. | Question does not provide sufficient data or is vague | |
Question number: 622
» Cell
Question
Some enzymes require the presence of a non-protein substance if they are to catalyse a reaction. Which of the following terms is the best general term for such a substance?
Choices
| Choice (5) | Response | |
|---|---|---|
a. | Cofactor | |
b. | Prosthetic group | |
c. | Coenzyme | |
d. | Modulator | |
e. | Question does not provide sufficient data or is vague | |