A heptose contains how many carbon atoms?
A) 4
B) 5
C) 6
D) 7
D) 7
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In a mutant E. coli strain, there was a mutation in the malate dehydrogenase gene that resulted in a stop codon at amino acid position 14. From subcultures of this strain, a colony was obtained that was capable of making malate dehydrogenase. Your approach to examining this phenomenon should be to examine
A) the DNA sequence to see if a reversion has occurred. B) the DNA sequence to see if a suppresor mutation has occurred. C) other proteins to see if other stop codons are ignored, indicating the presence of a suppresor tRNA. D) the DNA and plasmids for the incorporation of a second complete copy of the malate dehydrogenase gene. E) all of the above
Cork ___
A. represents the major dermal tissue in bark B. helps transport nutrients and fluid. C. serves a protective function. D. both represents the major dermal tissue in bark and helps transport nutrients and fluid. E. both represents the major dermal tissue in bark and serves a protective function.
Some bones have __________ that makes blood cells. Fill in the blank(s) with the appropriate word(s)
In a translocation, all of the DNA is present, and there is only one copy of each piece.
Answer the following statement true (T) or false (F)