MHC class I molecules present peptide fragments that are either "self" or "nonself"; in either case, the fragment becomes bound to the molecule while
A. in the Golgi apparatus.
B. in the cytosol.
C. in a secretory vesicle.
D. in the rough endoplasmic reticulum.
D
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The ________ plexus of testicular veins assists in cooling the testis
Fill in the blanks with correct word
The muscle tissue of the digestive system is called ________ muscle.
What will be an ideal response?
The unit of DNA that specifies a certain amino acid is called a ________, the same unit of mRNA is called a(n) ________ which, during protein synthesis, is matched by the ________ of tRNA
A) triplet; anticodon; codon B) gene; triplet; amino acid C) nucleotide; triplet; gene D) triplet; codon; anticodon
If the kidneys are conserving HCO3- and eliminating H+ in acidic urine, which is occurring: metabolic alkalosis or metabolic acidosis?
A) metabolic alkalosis B) metabolic acidosis