A particular tRNA molecule includes the anticodon sequence AUG. What would be the corresponding sequence in the noncoding strand of the DNA molecule that encodes the mRNA that this tRNA would pair with?
A. AUG
B. ATG
C. UAC
D. TAC
Answer: B
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What causes the formation of a polyribosome in prokaryotic transcription?
a. initiation of transcription and the formation of the transcription bubble b. termination of transcription when polymerase stalls in the A-T-rich regions c. multiple instances of translation on the same mRNA d. binding of polymerase to the promoter region
The placenta
a. forms from endometrial and extraembryonic tissues. b. will cover about one-fourth of the inner uterine surface at full term. c. does not normally intermingle fetal blood with maternal blood. d. secretes progesterone and estrogens that maintain the uterine lining during the second and third trimesters. e. does all of these.
A common herbicide that crops can be engineered to resist is ________
A) glyphosphate B) ethanol C) diesel D) methane E) ethane
You have identified a plant in your garden with a new flower color. You want to determine if this phenotype is dominant or recessive. Which cross would tell you this?
A) crossing the plant to one you know has the recessive trait B) crossing the plant to a plant of the same type of any color C) sequencing the DNA for the trait D) crossing the new plant to one you know has the dominant trait E) selfing the plant