In some organisms, a special tRNA recognizes the UAG stop codon but incorporates the amino acid
A) methionine.
B) selenocysteine.
C) glycine.
D) pyrrolysine.
E) none of the above
D) pyrrolysine.
You might also like to view...
A woman goes to the doctor and is diagnosed as having rheumatoid arthritis. What factors led to her development of this disease? Select all correct choices
A. Some of her T cells were not positively selected. B. Some of her T cells were not negatively selected. C. Some of her T cells are recognizing and responding to her normal self antigens. D. Some of her T cells are not recognizing and associating with her MHC proteins.
You are a breeder of animals with an X-linked coat-color gene, one allele of which gives black fur and another of which gives white fur
If you cross a black-colored female with a white-colored male, what would their male and female offspring look like?
The excretory structures of terrestrial arthropods are slender projections from the digestive tract that are attached at the junction of the midgut and hindgut. These are called
A. flame cells. B. kidneys and bladders. C. Malpighian tubules. D. nephridia. E. ocelli.
Which of the following emergence factors has contributed to the HIV/AIDS epidemic?
A) climate change B) rapid pathogen adaptation and change C) increasing travel to endemic areas D) exotic pet and meat trade