For each statement below indicate whether it is true or false: A. Strand discrimination during the process of DNA repair is based on DNA methylation B. The genetic code has 64 amino acid-specifying codons C. Mutations in germline cells are more consequential to subsequent generations than mutations in somatic cells.

For each statement below indicate whether it is true or false: A. Strand discrimination during the process of DNA repair is based on DNA methylation B. The genetic code has 64 amino acid-specifying codons C. Mutations in germline cells are more consequential to subsequent generations than mutations in somatic cells.

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter9: Molecular Biology

Section: Chapter Questions

Problem 11RQ: Post-translational control refers to: a. regulation of gene expression after transcription b....

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Which of the following decrease gene activity? a. acetylation of histone proteins b. methylation of histone proteins c. methylation of cytosines in DNA d. all the above decrease gene activity
Addition or deletion of bases causes which kind of mutation? Select one: a. Frameshift mutation b. Transversion c. Transition d. Transcription
Which statement regarding transitions and transversions is TRUE? a) An adenine to guanine change is a transversion b) Transversions are more commonly found in nature that are transitions c) A cytosine to guanine change is a transition d) Transversions cause a distortion in the DNA double helix
What kind of mutation normally has no consequence? please explain the answer a.transversions b.insertion c.silent d.nonsense
During transcription, the DNA can be modified by the enzyme DNA methyltransferase and will enhance the change of: Select one: a. Adenine into Thymidine b. Thymidine into Cytidine c. Uridine into Cytidine d. Cytidine into Thymidine e. Guanine into Thymidine
Which of the following is an example of chromatin modification that stimulates gene expression? Group of answer choices A. alternative exon splicing b. microRNA binding to mRNA c. DNA methylation D. histone acetylation
Which of the following is NOT true of DNA Methylation. A. DNA methylation is typically correlated to gene repression. B. On a given gene, histone modifications or DNA methylation could be used, but not both at the same gene. C. DNA methylation can be used in mismatch repair to identify the parent strand after DNA replication. D. DNA methylation typically occurs on dCTP nucleotides in eukaryotes. E. DNA methylation can be inherited through mitosis.
Which of the following may produce more than one functional protein from an mRNA transcript?a. chromatin condensation b. transcriptional regulation c. epigeneticsd. alternative mRNA processing
A biology professor at a prestigious university stated to his introductory class that "Today, a basic understanding of DNA and genetics is as important as a basic understanding of computers and the internet."Based upon what you have learned about DNA and gene expression in this module, how could you make a case to support this statement?
Which of the following will increase the rate of transcription? a. Activation of a transcriptional repressor b. Inhibition of a transcriptional activator c. Histone methylation leading to chromatin compaction d. Removal of RNA polymerase
Give two DIFFERENT examples of how the following can occur:a. A point mutation in an exon that is silent.b. A point mutation in an exon that is NOT silent.c. A point mutation in an intron that is NOT silent.d. A point mutation in a promoter that is NOT silent.
Choose all items that regulate the transcription of mRNAs.Group of answer choices A. Transcription factor proteins B. Intron sequences C.. DNA promoter sequences D. DNA enhancer regions E. Exon sequences