Frameshift mutations result from the:a

substitution of one base pair for another.
b. substitution of more than one base pair.
c. insertion or deletion of one or two base pairs.
d. substitution of a stop codon for an amino acid-specifying codon.
e. substitution of a start codon for an amino acid codon.


c

Biology & Microbiology

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Predict what would happen if the pulmonary vein returned blood to the right atrium.

A. The expected cardiac cycle would occur-this is the normal path. B. Abnormally high levels of oxygenated blood would be pushed into the systemic circuit. C. Oxygenated blood would be kept in a circular path between the heart and lungs-it would not reach the systemic circuit. D. Abnormally high levels of deoxygenated blood would be pushed into the systemic circuit.

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Recombinant chromatids have a mix of paternal and maternal alleles due to

A. random fertilization of the gametes. B. crossing-over between the linked genes. C. persistent linkage of genes on the chromatid. D. independent assortment. E. point mutations and gene aberrations from replication.

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Ediacaran organisms lived during the _____ period.

A. Jurassic B. Silurian C. Devonian D. Cambrian E. Precambrian

Biology & Microbiology

Where do prevailing winds coming from the north and south collide?

A) at the intertropical convergence zone B) on the leeward side of a mountain C) on the windward side of a mountain D) within hurricanes

Biology & Microbiology