What is unusual about the genome of phage ?X174? How is it replicated?
What will be an ideal response?
Ans: The genome of phage ?X174 is unusual because it is a single circular strand of DNA, not duplex DNA. This strand is the plus strand. Using the plus strand as a template, a complementary circular minus strand is replicated, which is then repeatedly used as a template for replication of the plus strand genome by the rolling circle mechanism.
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Angiosperms that have only one embryonic seed leaf are called:
A. eudicots. B. gnetophytes. C. ginkos. D. monocots. E. bryophytes.
A proteome is the set of ____________________ present in a particular cell at a specific time under a particular set of conditions
Fill in the blank(s) with correct word
Out of the countries listed, which has the largest reproductive base?
a. Japan b. Sweden c. Mexico d. United States e. India
Of the following, which is the oldest event?
a. origin of fungi b. appearance of land tetrapods c. formation of Pangea d. age of dinosaurs e. appearance of whales