AP (Advanced Placement) Biology: Questions 878 - 882 of 1309
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Question 878
Question MCQ▾
It is the important component of the RNA polymerase holoenzyme that provides specificity for the precise binding with DNA molecule in eukaryotes
Choices
Choice (5) | Response | |
---|---|---|
a. | Subunit | |
b. | The TFIID complex factor | |
c. | RNA polymerase I | |
d. | The chains | |
e. | The chains |
Question 879
Question MCQ▾
Both viruses and rickettsia
Choices
Choice (5) | Response | |
---|---|---|
a. | Both are in between living and non-living | |
b. | Are obligate intracellular parasites | |
c. | Spread host to host by sexual contact | |
d. | Are facultative intracellular parasites | |
e. | Metabolize resources from soil |
Question 880
Question MCQ▾
Some bacterial plasmids are involved in nitrogen-fixing pathway in a host cell. This type of plasmid is considered as a
Choices
Choice (5) | Response | |
---|---|---|
a. | F plasmid | |
b. | Virulence | |
c. | Metabolic | |
d. | R plasmid | |
e. | Hfr plasmid |
Question 881
Question MCQ▾
Which of the following type of mutation in bacteria restores a phenotype similar to the wild type but do not restore the original genotype?
Choices
Choice (5) | Response | |
---|---|---|
a. | Deletion mutation | |
b. | Reversion mutation | |
c. | Back mutation | |
d. | Frame shift mutation | |
e. | Conditional mutation |