What is a small circular piece of DNA that carries a few genes called?
a. Pili
b. Flagella
c. Ribosome
d. Plasmid
e. Cilia
d
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Deer flies (Chrysops spp.) are a major vector in the spread of typhus
Indicate whether the statement is true or false.
What is the difference between mismatch repair and nucleotide excision repair?
A. In mismatch repair, several nucleotides are replaced, whereas in nucleotide excision repair it is just one. B. In mismatch repair, one nucleotide is replaced, whereas in nucleotide excision repair several nucleotides are replaced. C. In mismatch repair, several nucleotides are replaced, whereas in nucleotide excision repair the sugar phosphate backbone is fixed. D. In mismatch repair, the sugar phosphate backbone is fixed, whereas in nucleotide excision repair, several nucleotides are replaced.
What unconsumed macromolecule from dead organisms eventually formed fossil fuels?
What will be an ideal response?
Secondary growth in trees and shrubs occurs in tissue called ________.
A. Lateral meristems B. Terminal buds C. Apical meristems D. Growth rings E. Primary tissue