A bacterial culture grown in a glucose-peptide medium causes the pH to increase. The bacteria are most likely
A) fermenting the glucose.
B) oxidizing the glucose.
C) using the peptides.
D) not growing.
C
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An initiator codon in E. coli is identified by locating:
A. a promoter sequence. B. the 5' cap structure. C. a Shine-Dalgarno sequence. D. a terminator sequence from the previous gene. E. an origin of replication.
Which of the following is incorrectly matched?
A. Simple cuboidal; kidney tubules B. Transitional epithelium; bladder C. Stratified squamous; esophagus D. Simple columnar; intestines E. Simple squamous; nasal passages
Matching II. Match the cause with the disorder
1. ___ Down syndrome 2. ___ galactosemia 3. ___ color blindness 4. ___ hemophilia A 5. ___ Turner syndrome A. autosomal recessive inheritance; lactose metabolism is blocked B. nondisjunction of the twenty-first chromosomal pair C. X-linked recessive inheritance D. nondisjunction of the sex chromosomes
Most insects would be typical of which survivorship curve category?
A) late-loss species B) constant-loss species C) early-gain species D) early-loss species E) late-gain species