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
Answer: D
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You would like to see what infections a patient has been fighting recently; one way to do this is to isolate cytotoxic T cells and look into their phagosomes to see what pathogens they have been engulfing through phagocytosis.
Answer the following statement true (T) or false (F)
Which type of epithelial tissue is found lining the heart, blood vessels and lymphatic vessels?
a) Simple squamous epithelium b) Simple cuboidal epithelium c) Stratified squamous epithelium d) Stratified cuboidal epithelium e) Simple columnar epithelium
When solutes move between the tubule cells from the filtrate into the blood, it is called:
A. Transcellular reabsorption B. Transcellular secretion C. Paracellular reabsorption D. Paracellular secretion
When compared with the effects of blood pressure and osmolarity on fluid intake, the effects of saliva and stomach distention are
A. more immediate and more accurate. B. more immediate but less accurate. C. more long-term and more accurate. D. more long-term but less accurate.