One of the more formidable obstacles to mammalian gene cloning is the presence of
A) introns.
B) exons.
C) repressors.
D) integrators.
Answer: A
Biology & Microbiology
You might also like to view...
The secretions of the sweat and sebaceous glands provide ________ to the microbiota
A. water B. amino acids C. lipids D. All of the choices are correct.
Biology & Microbiology
If a codon in the mRNA is 5’-ACG-3’, then the anticodon of the proper tRNA will be ____
a. 5’-UGC-3’ b. 5’-CGU-3’ c. 5’-CGT-3’ d. 5’-TGC-3’ e. 5’-GCA-3’
Biology & Microbiology
The fossil record shows that the jawed fishes called ____, which diversified in the Devonian and Carboniferous and jaws with sharp cutting edges
a. acanthodians b. conodonts c. osteolepiforms d. placoderms e. ostracoderms
Biology & Microbiology
Filtrate from Bowman's capsule flows into the
a. papillary duct. b. loop of Henle. c. proximal tubule. d. distal tubules. e. peritubular capillary.
Biology & Microbiology