The symptoms of alkaptonuria result from a build-up of ____________________ in the blood. Fill in the blank(s) with the appropriate word(s)
ANS: homogentisic acid
Biology & Microbiology
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Reverse transcriptase is an enzyme that can synthesize DNA from an RNA template. What DNA sequence is produced from an RNA molecule with the sequence AUUGACGGU?
A. UAACUGCCA B. TTTCTGCCT C. TAACTGCCA D. ATTCAGCCT E. TUUCTGCCU
Biology & Microbiology
Rigid bacteria with a helical cell shape are called
A. coccobacilli. B. vibrios. C. spirochetes. D. spirilla.
Biology & Microbiology
A testcross involves
a. two F1 hybrids. b. an F1 hybrid and an F2 offspring. c. two parental organisms. d. an F1 hybrid and the homozygous dominant parent. e. an F1 hybrid and an organism that is homozygous recessive for that trait.
Biology & Microbiology
DNA carries genetic information in its
A) sequence of bases. B) helical form. C) tertiary structure. D) phosphate groups. E) sugar groups.
Biology & Microbiology