A VNTR is:
a) used in biotechnology when creating a clone.
b) produced when a mutation occurs in a sperm-producing or egg-producing cell.
c) produced when a mutation occurs in a non-sex cell.
d) a highly variable section of an individual's DNA.
e) a gene that codes for a biochemical trait, rather than a structural trait.
Ans: d) a highly variable section of an individual's DNA.
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Indicate whether the statement is true or false.
Which of the following is a true statement? a. In Japan, people over age 65 make up 10% of the population
b. None of the choices. c. In the United States, projections show that people over the age of 65 will reach 20% of the population by 2030. d. Having a high percentage of people over 65 is good for the economy because older people consume fewer resources.
It has been estimated that if everyone in the
world had the same lifestyle as the average American, it would require ___ more Earths.
a. 1 b. 2 c. 3 d. 4 e. 5
Plants first colonized land at least _________.
A. 75 million years ago B. 245 million years ago C. 475 million years ago D. 1.2 billion years ago