Which of the following is not true of eukaryotic translation initiation?
A. All polypeptides synthesized by cytosolic ribosomes begin with a Met residue, not an fMet.
B. A special initiator tRNA is utilized for initiation by cytosolic ribosomes.
C. Polypeptides synthesized by mitochondrial ribosomes begin with fMet.
D. The 40S ribosomal subunit binds the mRNAbefore any initiation factors.
D
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Match the following items with the correct phrases.
_______1. In ____________________, bacteria acquire new genetic information in the form of viral genes. _______2. Oswald Avery and his colleagues discovered that DNA is the hereditary molecule while performing ____________________ experiments with Streptococcus pneumoniae. _______3. In ____________________, bacteria acquire new genetic information as a result of absorbing pieces of naked DNA from their environment. _______4. In ____________________, genetic information is passed from one bacterial cell to another via a hollow sex pilus. _______5. In ____________________, bacteria acquire new genetic information when bacteriophages inject bacterial genes. a. conjugation b. lysogenic conversion c. mutation d. transduction e. transformation
Human height is a trait affected by both genes and the environment. How is this so?
What will be an ideal response?
Rabies is caused by a
A) bacterium. B) prion. C) virus. D) viroid. E) fungus.
Which are the primary molecules making up plasma membranes in cells?
A) carbohydrates B) lipids C) proteins D) nucleic acids