Pre-mRNA splice sites are recognized by the spliceosome through:
A. base pairing with snRNAs.
B. site-specific recognition by the Sm proteins.
C. RNA hairpin recognition.
D. the specific distance of the intron from the mRNA 5' cap.
A
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Answer the following statements true (T) or false (F)
1. Because he discovered penicillin, Alexander Fleming is often referred to as the “Father of Chemotherapy.” 2. Bacteria can become drug resistant as a result of transduction, transformation, or conjugation. 3. All antimicrobial agents are antibiotics. 4. Administering an antibiotic to a patient to treat one type of infectious disease could actually cause other types of infectious diseases in that patient. 5. Bacteria that acquire the genes that code for an MDR pump become multidrug resistant.
The probability that the daughter of a woman with a dominant disease-causing allele on one X chromosome and a normal male will be affected with the disorder is
A) 2/3. B) 1/2. C) 3/16. D) 1/3.
____ epithelial tissue is only one cell layer thick
a. Stratified b. Dense connective c. Loose connective d. Simple e. Cuboidal
Symbiotic nitrogen fixation can consume up to ________% of the ATP generated by the host plant.
A. 5 B. 50 C. 30 D. 20