Bacteria and yeast both replicate asexually and produce copies of themselves. What is this called in biotechnology?
a. molecular cloning
b. meiosis
c. cellular cloning
d. reproductive cloning
c. cellular cloning
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What is the role of DNA ligase in the elongation of the lagging strand during DNA replication?
A) It synthesizes RNA nucleotides to make a primer. B) It catalyzes the lengthening of telomeres. C) It joins Okazaki fragments together. D) It unwinds the parental double helix. E) It stabilizes the unwound parental DNA.
Why do many animals do most of their calling at dawn and dusk?
A. Most predators are not active at those time. B. Air is less turbulent and carries sound better. C. Pheromones are released at dawn and dusk. D. Animals preferentially mate at night. E. Imprinting behaviors are better received at those time.
The following amino acid would be characterized as ____ based on the chemical properties of its side chain
a. basic
b. acidic
c. nonpolar
d. hydrophilic
e. electrically charged
In dogs it's called a breed. In other animals, it's a subspecies. But in plants, it's called a
A. clone. B. strain. C. variety. D. division.