At which regulation level is DNA uncoiled and loosened from nucleosomes in eukaryotic organisms?
a. At the translational level
b. At the epigenetic level
c. At the transcriptional level
d. At the post-transcriptional level
b. At the epigenetic level
DNA is uncoiled and loosened from nucleosomes in eukaryotic organisms at the epigenetic level.
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Which of the following is NOT a floral structure?
A. endosperm B. calyx C. corolla D. stigma E. style
Following ovulation, the vesicular follicle develops into a _________ _________
Fill in the blank(s) with the appropriate word(s)
A group of interbreeding individuals occupying the same habitat at the same time is a(n)
A. quadrat. B. equilibrium. C. population. D. species. E. guild.
A DNA library has been constructed by purifying chromosomal DNA from mice, cutting the DNA with the restriction enzyme NotI, and inserting the fragments into the NotI site of a plasmid vector. What information cannot be retrieved from this library?
(a) gene regulatory sequences (b) intron sequences (c) sequences of the telomeres (the ends of the chromosomes) (d) amino acid sequences of proteins