Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Chapter 11, Problem 8TY
Summary Introduction
Introduction: There are a variety of living organisms that are present in the environment. Most of the organism contains a nucleus in which the genetic material is stored. The genetic material plays a very crucial role in the functions of the organism. A chromosome is a part of genetic material that contains genes. It is present in the nucleus.
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Genetic information flows in one direction. Which of the following exceptions can actually occur?
a.
DNA to Protein
b.
RNA to DNA
c.
Protein to DNA
d.
Protein to RNA
A.) DNA encodes for the cell genome and is therefore a permanent copy to have a functioning cell.
B.)Different changes to the structure of messenger RNA can cause mutations and genomic instability which could lead to abnormal cells in the body.
a. Statement A is correct
b. Statement B is correct
c. Both A and B are correct
d. Both A and B are incorrect
Which of the following statements about nucleic acids is not correct?
Select one:
A.
In DNA the distance between the strands of the double helix is relatively constant.
B.
The growing DNA polymer is synthesized in the 5' to 3' direction.
C.
The enzymes that catalyze DNA synthesis are known as DNA polymerases.
D.
RNA strands are synthesized in the 3' to 5' direction.
E.
Unlike DNA, RNA is easily cleaved because the 2'-OH group of the ribose is a nucleophile that catalyzes hydrolysis of the strand.
Chapter 11 Solutions
Biology
Ch. 11.1 - Prob. 1CSCh. 11.1 - Prob. 1EQCh. 11.1 - Prob. 2EQCh. 11.1 - CoreSKILL In the experiment of Avery, MacLeod,...Ch. 11.2 - Prob. 1CCCh. 11.2 - Prob. 2CCCh. 11.2 - Core Skill: Modeling The goal of this modeling...Ch. 11.2 - Prob. 2CSCh. 11.3 - If this experiment was conducted for four rounds...Ch. 11.4 - Molecular Mechanism of DNA Replication Concept...
Ch. 11.4 - Prob. 2CCCh. 11.4 - Prob. 3CCCh. 11.4 - Prob. 4CCCh. 11.5 - Prob. 1CCCh. 11.5 - Prob. 1CSCh. 11 - Why did researchers initially believe that the...Ch. 11 - Prob. 2TYCh. 11 - Which of the following equations is accurate...Ch. 11 - Prob. 4TYCh. 11 - Which of the following statements about the...Ch. 11 - Meselson and Stahl were able to demonstrate...Ch. 11 - During replication of a DNA molecule, the daughter...Ch. 11 - Prob. 8TYCh. 11 - A nucleosome is a. a dark-staining body composed...Ch. 11 - The conversion of euchromatin into heterochromatin...Ch. 11 - What are the four key criteria that the genetic...Ch. 11 - A double-stranded DNA molecule contains 560...Ch. 11 - Prob. 3CQCh. 11 - Prob. 1COQCh. 11 - CoreSKILL How might you provide evidence that DNA...
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- The process of forming RNA from DNA is called a. mitosis. b. DNA replication. c. translation. d. transcription.arrow_forwardWhich of the following processes is a part of protein synthesis and is NOT affected by a silent mutation? a. synapsis b. Transcription c. Translation d. Replicationarrow_forwardA.) There is no change in the DNA sequence if nucleotides are added or removed, it will have no effect to the cell. B.) Mutations in the DNA sequence are all irreversible. A. Statement A is correct B. Statement B is correct C. Both A and B are correct D. Both A and B are incorrectarrow_forward
- Which of the following is NOT true of deoxyribonucleic acid (DNA)? A. None of the other four answers (all are true of DNA) B. Each DNA nucleotide contains the sugar ribose, phosphate, and one of the following nitrogenous bases: adenine, uracil, guanine, or cytosine C. Stores genetic information that can be expressed within a bacterial cell, transferred “vertically” to offspring cells, or “horizontally” to other recipient cells D. Found as a circular molecule in bacteria, either as chromosomes or plasmids E. Serves as a template for the transcription of mRNAarrow_forwardWhich of the following statements accurately describes the process of DNA replication? A. The two strands of DNA separate, and a single new strand is synthesized using the existing strand as a template. B. The two strands of DNA separate and serves as a template, and the daughter molecule will have a mix of an old and new strand. C. The two strands of DNA separate and serves as a template, and the daughter molecule will have one old strand and one new strand. D. The two strands of DNA separate, and each strand serves as a template for the synthesis of multiple new complementary strands.arrow_forwardThe molecule DNA is important to biological systems because a. it can be replicated. b. it encodes the information for making a new individual. c. it forms a complex, double-helical structure. d. nucleotides form genes.arrow_forward
- The antiparallel nature of DNA refers to a. its charged phosphate groups. b. the pairing of bases on one strand with bases on the other strand. c. the formation of hydrogen bonds between bases from opposite strands. d. the opposite direction of the two strands of nucleotides.arrow_forwardWhich of the following schemes for molecular information flow never occurs in cellular life forms? a. DNA to rRNA b. mRNA to protein c. DNA to tRNA d. DNA to mRNA e. RNA to DNAarrow_forwardWhat process in protein synthesis that is NOT affected by a silent mutation? Select one: a. Synapsis b. Replication c. Translation d. Transcriptionarrow_forward
- A few genes produce regulatory molecules that help the cell assemble proteins. The journey from gene to protein is complex and tightly controlled within each cell. Which of the following statements best describes the role of DNA and RNA in protein synthesis? * A. DNA is the primary genetic material contained within a cell. B. DNA is the long-term storage while RNA is the messenger containing instruction from DNA C. DNA creates protein during protein synthesis & converts it into usable molecules while RNA assembles amino acid into a protein. D. All of the above. Humans and chimpanzees share many common characteristics. How would you explain the similarities of the amino acid sequences that can be found in both organisms? * A. Two groups share a relatively common ancestor B. Humans evolved from chimpanzees C. Two groups belong to the same species D. Chimpanzees evolved from…arrow_forwardMark the following properties as belonging to either DNA or RNA. a. Contains the nucleotides A, G, C, and U ________ b. Found only in the nucleus of the cell ________ c. Can move in and out of the cell’s nucleus ________ d. Contains two strands of nucleotides linked by hydrogen bonds ________ e. Contains the code for every protein in the body ________ f. Contains the sugar ribose________arrow_forwardWhich process in protein synthesis is most affected by a silent mutation? Select one: a. Replication b. Transcription c. Translation d. None of the abovearrow_forward
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