Which of the following contain enzymes and
are the main organelles of waste disposal?
a. Golgi bodies
b. mitochondria
c. lysosomes
d. ribosomes
e. endoplasmic reticulum
C
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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.
The Warburg effect is the observation that cancer cells produce energy using a high rate of glycolysis followed by
fermentation rather than oxidative phosphorylation. Although the exact cause is still under investigation, which explanation is most plausible?
a. Tumors attract blood vessels to increase levels of available oxygen. b. In order to grow quickly, high levels of ATP are required. c. Mutations in phosphofructokinase prevent feedback inhibition. d. Tumor formation upregulates glycolytic proteins. e. Rapid cell proliferation damages mitochondrial function.
Nucleotides are found in
a. proteins. b. steroids. c. lipids. d. ATP, DNA, andRNA. e. carbohydrates.
If a parent cells has 48 chromosomes, how many chromosomes will each daughter cell have after mitosis and cytokinesis occurs?
A. 24 B. 48 C. 12 D. 96