Two pairs of electrons shared between two atoms is
called __________. Fill in the blank(s) with the appropriate word(s).
Answer: double
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Match the feature of protein synthesis that best matches.
A) neither prokaryotic nor eukaryotic protein synthesis B) prokaryotic protein synthesis C) eukaryotic protein synthesis D) both prokaryotic and eukaryotic protein synthesis 1) AUG is the start codon 2) the initial amino acid is N-formylated 3) requires the presence of eIFs for translational initiation 4) peptide bond formation catalyzed by an RNA molecule 5) presence of Shine–Delgarno sequence 6) mRNA is translated 3' ? 5'
Which of the following uses specific genes of microorganisms cloned into vectors and mass- produced in bacteria to make large quantities of specific substances to stimulate the immune system?
a. Gene therapy b. Insulin synthesis c. Genetic diagnosis d. Vaccine production
The RB1 tumor-suppressor gene ____
a. controls the G2/M checkpoint b. controls the G1/S checkpoint c. is overactive in cases of retinoblastoma d. is overactive in cases of breast cancer e. is overactive in cases of leukemia
The behavioral response tested using the models in the accompanying figure is:
a. classical conditioning. b. habituation.
c. imprinting. d. insight. e. a sign stimulus.