In Figure 8.2, if base 4 is thymine, what is base 4'?
A) adenine
B) thymine
C) cytosine
D) guanine
E) uracil
Answer: A) adenine
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The Cas9 nuclease is able to cleave target DNA at a single precise site by ________.
A. recognizing a palindromic sequence on the DNA and cleaving at that site leaving sticky ends B. associating with a single-stranded DNA molecule that binds to its complement on the genome to be cleaved C. using a guide RNA that hybridizes to a unique sequence on the target DNA molecule D. altering its active site to bind to and cleave any DNA sequence that is targeted
Small, membrane-bound sac that stores substances within a cell.
What will be an ideal response?
Each chlorophyll and bacteriochlorophyll type is distinguished by its absorption spectrum
Indicate whether the statement is true or false.
Which statement is TRUE about Streptococcus pneumoniae and the lung infection it causes?
A) Streptococcus pneumoniae can spread from the focus of infection as a bacteremia. B) Penicillin and erythromycin are the "last chance" drugs for treatment of streptococcal pneumonia. C) Infection with any strain of encapsulated virulent Streptococcus pneumoniae provides long-lasting immunity to all encapsulated virulent strains. D) Streptococcal pneumonia is not as serious as most people think; if left untreated, it usually runs its course in about a week to ten days.