Which of the following is important for allowing large, charged molecules to pass through the membrane?
A. peripheral proteins
B. cholesterol
C. glycosylated lipids
D. transmembrane proteins
E. carbohydrate channels
D. transmembrane proteins
Biology & Microbiology
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The enzyme that catalyzes the initial processing of miRNAs in the nucleus is:
A. Drosha. B. Dicer. C. Argonaute. D. RNase A.
Biology & Microbiology
In which stage of demographic transition is the death rate higher than the birth rate?
a. transitional b. postindustrial c. preindustrial d. industrial
Biology & Microbiology
If Mendel crossed two homozygous recessive green peas (yy) together, what percentage of offspring would also be homozygous recessive?
a. 0% b. 50% c. 75% d. 100%
Biology & Microbiology
Which of the following pairs is correctly matched?
A) endomembrane system–cilia B) microfilaments–permanent C) microtubules–tubulin D) intermediate filaments–actin
Biology & Microbiology