In translation, a cytosine in tRNA pairs opposite 

A. uracil.
B. guanine.
C. thymine.
D. adenine.


B. guanine.

Biology & Microbiology

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Which of the following frequently causes health-care-associated infections of the GI tract?

A. Salmonella enteritidis B. E. coli C. Staphylococcus aureus D. Clostridium difficile

Biology & Microbiology

Which two cellular organelles in eukaryotes have both electron transport systems and chemiosmotic mechanisms?

a. Ribosomes and endoplasmic reticulum b. Chloroplasts and endoplasmic reticulum c. Chloroplasts and mitochondria d. Mitochondria and nuclei e. Nuclei and Golgi apparatus

Biology & Microbiology

Primates are important in the study of human evolution because:

A. humans are primates B. some primates live in the same environment as humans C. humans evolved from primates D. primates are related to humans

Biology & Microbiology

Human DNA includes

What will be an ideal response?

Biology & Microbiology