Which part of the genome is affected by cancer-causing alterations to cellular DNA?
a) Introns.
b) Oncogenes.
c) Exons.
d) Promoters.
Ans: b) Oncogenes.
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The __________ sensations arise from sensory
receptors located in skin, or near muscles or joints. Fill in the blank(s) with the appropriate word(s).
Which of the following is a characteristic of all cancers?
A. Uncontrolled cell division B. Metastasis C. Rapid proliferation D. Uncontrolled cell division and metastasis only E. All of these are characterisitic of all cancers
Nonpolar molecules are water soluble.
Answer the following statement true (T) or false (F)
Grass flowers lack petals and sepals. Which of the following statements is TRUE?
A) They are incomplete flowers lacking one or more floral parts. B) They are pollinated by flies, which don't require showy, scented petals. C) They are imperfect flowers lacking stamen or carpals. D) These flowers are pollinated at night, so they don't benefit from showy petals or sepals.