Which statement about the flow of genetic information is true? a. RNA encodes information that is translated into DNA, and DNA encodes information that is translated into protein b. DNA encodes information that is translated into RNA, and RNA encodes information that is translated into proteins c. DNA encodes information that is translated into proteins and RNA. d. Proteins encode information that is used to produce other proteins of the same amino acid sequence. e. Proteins encode information that is translated into RNA, and RNA encodes information that is transcribed into DNA

Which statement about the flow of genetic information is true? a. RNA encodes information that is translated into DNA, and DNA encodes information that is translated into protein b. DNA encodes information that is translated into RNA, and RNA encodes information that is translated into proteins c. DNA encodes information that is translated into proteins and RNA. d. Proteins encode information that is used to produce other proteins of the same amino acid sequence. e. Proteins encode information that is translated into RNA, and RNA encodes information that is transcribed into DNA

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 6RQ: A promoter is ______. a. a specific sequence of DNA nucleotides b. a specific sequence of RNA...

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Which statement about transposons is INCORRECT? a.A transposon is a small fragment of DNA that can move from one location in a chromosome to another location in the same chromosome. b.Transposon insertion into a gene causes a mutation that can be reversed by removal of the transposon. c.Transposon movement often occurs when the cell is under genomic stress. d.In nature, insertion of a transposon can be deliberately added into a harmful gene to enhance survival.
Which sequences are spliced out of the mRNA strand before leaving the nucleus? In other words, which sequences are not part of the code for the amino acids? a. exons b. introns
How many mRNA nucleotides does it take to code for a polypeptide that is 30 amino acids long? a. 300 b. 90 c. 30 d. 10
What determines which transcription factors will be able to regulate a particular gene's expression? A. The collection of control element sequences that are associated with that gene B. The location of that gene sequence (which chromosome it is located on) C. The sequence of introns present in that gene D. The sequence of exons present in that gene ..
What is the genetic information in DNA due to? A. composition of DNA in a gene B. specificity of base pairing C. sequence of nucleotides D. sugar-phosphate backbone E. precise three-dimensional conformation of DNA
Which mode of information transfer in the Centra Dogma does not occur in the real world (which is not physiological)? a. RNA to DNA b. DNA to protein c. RNA to Protein d. DNA to RNA
Chronic liver disease is common among HIV-infected patients, and is increasingly a cause of mortality and morbidity. The disease is usually a result of the destruction and altering of specific liver cell membrane proteins, which damages and kills liver cells. How does HIV influence this activity? A. Protein synthesis is altered in HIV patients due to the insertion of viral RNA. B. Liver disease is a side-effect of several HIV medications. C. HIV halts DNA transcription and inhibits protein synthesis. D. Liver disease is caused by the attack of the HIV virus on the organ itself
Which type of gene controls functions like an "on-off" switch for gene transcription? A. DNA methylation B. Phosphorylation C. translation D. protein degradation
A scientist studies the production of a key digestive enzyme in silk moths. The moths have one gene for this enzyme, and the scientist extracts mRNA transcribed from this gene as well as protein translated from it. The gene has three introns in its sequence. If the researcher compares mRNA from inside the nucleus to mRNA from the ribosomes, what will be found? A. less mRNA in the nucleus B. shorter mRNA in the ribosomes C. identical mRNAs in both places D. mRNA covalently attached to protein in the nucleus
Which of these features is found in eukaryotes but not bacteria?a. polygene mRNAs b. introns c. stop codon d. AUG codon
How are rare bases incorporated into tRNAs? a. Encoded by guide RNAs b. By chemical changes to one of the standard bases c. Encoded by rare bases in DNA d. Encoded by sequences in introns
Which event contradicts the central dogma of molecular biology? a. Poly-A polymerase enzymes process mRNA in the nucleus. b. Endonuclease enzymes splice out and repair damaged DNA. c. Scientists use reverse transcriptase enzymes to make DNA from RNA. d. Codons specifying amino acids are degenerate and universal.

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	a.	RNA encodes information that is translated into DNA, and DNA encodes information that is translated into protein
	b.	DNA encodes information that is translated into RNA, and RNA encodes information that is translated into proteins
	c.	DNA encodes information that is translated into proteins and RNA.
	d.	Proteins encode information that is used to produce other proteins of the same amino acid sequence.
	e.	Proteins encode information that is translated into RNA, and RNA encodes information that is transcribed into DNA