The template strand of a DNA segment that codes for mRNA has the sequence: ATGCGT. Which tRNA anticodons would pair with the mRNA that is coded for by this sequence?
A. AUG CGU.
B. ATG CGT.
C. UAG CGU.
D. UAC GCA.
Answer: A
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What color is a plant with the genotype GgAa?
A horticulturist is breeding a new variety of houseplant in which two genes control leaf color. G (allele for green) is dominant to g (yellow) and B (second allele for green) is dominant to b (yellow). The recessive homozygous condition of either gene will mask a dominant allele. A. green B. yellow C. an intermediate yellow-green D. variegated (yellow and green spots or stripes) E. The color cannot be determined with the information given.
How many land eco-regions have been
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a. hydrogen bonds. b. polar covalent bonds. c. nonpolar covalent bonds. d. ionic bonds. e. hydrophobic interactions.
Thirty people are selected for a long-term mission to colonize a planet many light-years away from Earth. The mission is successful, and the population rapidly grows to several hundred individuals. However, certain genetic diseases are unusually common
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