Which of the following mutations always
lead(s) to a shift of the mRNA's reading frame?
a. deletion and insertion
b. deletion and substitution
c. insertion and substitution
d. substitution
e. insertion
A
Biology & Microbiology
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The common ancestor of all cells lived ________ years ago
a. 4.3 billion b. 7.4 billion c. 2.3 million d. 200 million e. 13 billion
Biology & Microbiology
Describe where most carbon is stored in temperate zone forests and grasslands. What will be an ideal response?
Biology & Microbiology
What is the major protein in the myofilament that is composed of two intertwined strands?
a. actin
b. chromatins
c. lamins
d. tubulins
e. lamellae
Biology & Microbiology
Lichens are adversely affected by
A. sunlight. B. humidity. C. sexual reproduction of the fungal partner. D. asexual reproduction of the photosynthetic partner. E. pollution.
Biology & Microbiology