The movement of a section of DNA from a chromosome to a nonhomologous chromosome is an example of
A. translocation during meiosis.
B. translocation during mitosis.
C. nondisjunction during meiosis.
D. crossing-over during meiosis.
E. random alignment during mitosis.
A. translocation during meiosis.
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Which one of the following is true? A codon _____
A) consists of four nucleotides B) can code for up to four different amino acids C) extends from one end of a tRNA molecule D) is the basic unit of the genetic code
Which element would the element lithium most likely form an ionic bond with?
a. Aluminum; atomic number = 13 b. Chlorine; atomic number = 17 c. Magnesium; atomic number = 12 d. Nitrogen; atomic number = 7 e. Silicon; atomic number = 14
Figure 46.2
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The following question refers to the accompanying figure illustrating a tallgrass prairie food chain.
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The letter C indicates a ____.
A. primary producer B. primary consumer C. second-level consumer D. third-level consumer E. fourth-level consumer
In some plants, the direction of growth changes in response to contact with an object. This is called __________.
Fill in the blank(s) with the appropriate word(s).