The ground tissue lacking in the primary eudicot root is:
a. pith
b. periderm
c. cortex
d. vascular cambium
e. pericycle
a
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A plasmid is a
a. small segment of DNA that is often isolated from virus chromosomes for cloning purposes. b. large linear segment of DNA that is often isolated from bacterial chromosomes for cloning purposes. c. small circular segment of DNA in bacteria that is linked by hydrogen bonds to the main bacterial chromosome. d. large circular segment of DNA in bacteria that is completely separated with the chromosome. e. small circular segment of DNA in bacteria that is completely separated from the chromosome.
________ is attached to a specific amino acid and transports it to the appropriate region of mRNA
Fill in the blank(s) with correct word
What is the fate of the prophage during the lysogenic stage?
a. It is released from the cell by lysing the cell. b. It is copied every time the host DNA replicates. c. It is packaged into viral proteins and maintained until the host is exposed to an environmental stress. d. It is degraded by the activity of host defense enzymes.
The greatest annual input and least seasonal variation in solar radiation occurs in the
A) Southern Hemisphere. B) temperate zones. C) tropics. D) polar regions.