In a hypothetical food chain consisting of grass, grasshoppers, sparrows, and hawks, the grasshoppers are
A) primary consumers.
B) primary producers.
C) secondary consumers.
D) tertiary consumers.
Answer: A
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Which one of the following types of proteins interacts directly with a stop codon?
A. release factor B. initiation factor C. transcription factor D. elongation factor E. sigma factor
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 5'AUUGACGGU3'?
A. 3'UAACUGCCA5'. B. 5'TTTCTGCCT3'. C. 3'TAACTGCCA5'. D. 5'ATTCAGCCT3'. E. 3'TUUCTGCCU5'.
The fungal diseases that are acquired the airborne route typically stay localized to the lungs, causing pneumonia.
Answer the following statement true (T) or false (F)
Which of the following pairs is mismatched?
A) DNA polymerase — makes a molecule of DNA from a DNA template
B) RNA polymerase — makes a molecule of RNA from an RNA template
C) DNA ligase — joins segments of DNA
D) transposase — insertion of DNA segments into DNA
E) DNA gyrase — coils and twists DNA