Which statement is true?
a. DNA methylation is limited to the original cell and cannot be inherited by offspring.
b. DNA methylation promotes transcription by unwinding DNA from histone proteins.
c. DNA methylation occurs in CpG islands located within the promoter region of genes.
d. DNA methylation always results in genes that are silenced and inactive.
c. DNA methylation occurs in CpG islands located within the promoter region of genes.
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The molecule shown above is a(n) ____
a. triglyceride b. amino acid c. steroid d. polysaccharide e. phospholipid
The name "human" is an example of a
a. common name. b. scientific name. c. binomial. d. polynomial.
The Shine-Dalgarno sequence in bacteria __________
A) is a purine-rich consensus sequence found in the 5? UTR of the mRNA B) is a pyrimidine-rich consensus sequence found in the 3? UTR of the mRNA C) is a purine-rich consensus sequence found in the 16S rRNA subunit D) is a region of the tRNA molecule involved in formation of charged tRNAs E) is a consensus sequence involved in the termination of translation
Which is an example of a solid tumor derived from epithelial tissue?
a. leiomyoma b. rhabodomyoma c. chondrosarcoma d. adenocarcinoma of the lung e. ewing sarcoma