Which of the following events must occur to cause a chromosomal translocation, such as that seen in individuals with chronic myelogenous leukemia (CML)?
A. One chromosome must break in two distinct locations.
B. Two different chromosomes must break.
C. A transposon must be present in one of the chromosomes.
D. The broken ends must pair correctly.
E. A mutation in the DNA must occur.
Answer: v
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Copper (Cu) is considered a micronutrient.
Answer the following statement true (T) or false (F)
Plants require energy to perform photosynthesis. Photosynthesis uses the energy, water, and carbon dioxide to make glucose, which is stored for energy. Because energy is initially required, photosynthesis is a(n) reaction.
This diagram summarizes energy transfers and molecule exchanges among plants and animals, as you will later learn we call producers and consumers.
A. kinetic energy
B. potential energy
C. exergonic
D. equilibrium
E. endergonic
Fresh water and forests may be tapped indefinitely as long as they're replenished. They are
classified as a. nonrenewable resources. b. renewable resources. c. ecological sources. d. biogeographical resources. e. point sources.
Brachiopods, phoronids, and bryozoans all have a ring of ciliated tentacles around the mouth. These animals are thus
grouped as: a. rotifers b. flatworms c. ctenophores d. lophophorates e. onychophorans