Many archaeal genomes include plasmids.
Answer the following statement true (T) or false (F)
True
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What would most likely result from histone acetylation and DNA methylation of the same section of a DNA molecule?
a. The nucleosomes would tightly coiled but remain transcriptionally active. b. Histone acetylation would cancel out epigenetic changes caused by DNA methylation. c. The histones would separate, but the exposed genes would not be transcribed. d. This combination of acetylation and methylation triggers histone replication.
In the figure above, which number identifies the cell(s) or portion of the cell(s) that will respond to a
single photon?
a. 1 only b. 2 only c. 4 and 7 d. 5 and 8 e. 3 and 6
At about how many weeks of pregnancy is an amniocentesis performed?
a. 5?7 weeks b. 10?12 weeks c. 14?16 weeks d. 18?20 weeks e. 21?24 weeks
Which of the following molecules is least likely to be able to pass through a capillary wall?
A) an enzyme B) a sodium ion C) glucose D) oxygen