Long-branch attraction is:
a. inferring too close a relationship between rapidly evolving branches.
b. species on branches of a phylogenetic tree being ‘pulled together' by an inference procedure.
c. A and B.
d. Neither of the above.
C
You might also like to view...
What role does Acidithiobacillus ferrooxidans play in the copper leaching process?
A) oxidation of sulfide to sulfate B) reduction of oxidized iron (Fe3+) to reduced iron (Fe2+) C) oxidation of reduced iron (Fe2+) to oxidized iron (Fe3+) D) reduction of sulfate to sulfide
When in the cell cycle would you find sister chromatids?
A. G1 B. S C. G2 D. Answers b and c are correct.
X chromosome inactivation is caused by the accumulation of:
A. proteins produced by the Xist gene; these proteins induce methylation, histone modification, and other changes associated with preventing transcription. B. coding RNA produced by the Xist gene; this RNA, in addition to coding for Xist proteins, binds to and coats the X chromosome undergoing inactivation and physically prevents it from being transcribed. C. non-coding RNA produced by the Xist gene, which coats the X chromosome and physically prevents it from being unwound, "unzipped," and transcribed. D. non-coding RNA produced by the Xist gene, which coats the X chromosome and induces methylation, histone modification, and other changes associated with preventing transcription. E. None of these choices accurately describe the process of X chromosome inactivation.
Vectors can transfer ____
a. DNA sequences into bacterial host cells for cloning b. DNA sequences into viral host cells for cloning c. cloned viral cells into a bacterial host for cloning d. cloned mitochondria from donor cell to host cell e. cloned chromosomes from the nucleus of a cell into its cytoplasm