Answered: Original strand: G G G C T A G G G C C…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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Original strand: G G G C T A G G G C C A A , Mutant strand: G G G G C T A G G G C C A A . What type of mutation? *

A. Insertion

B. Deletion

C. Substitution

D. Nonsense

A base substitution that causes regular codon to change into another codon that codes for different amino acids is said to be; *

A. missense mutations

B. nonsense mutations

C. silent mutations

D. no correct response

Mutagenic agents that can cause cancers are known specifically as; *

A. mutagens

B. carcinogens

C. chemicals

D. no correct response

The process of copying a gene's DNA sequence into a sequence of RNA is called_____. *

A. replication

B. transcription

C. translation

D. PCR

Which of the following types of RNA is not part of the overall transcription process? *

A. hnRNA

B. mRNA

C. snRNA

D. no correct response

The process of inserting recombinant DNA into a host is called; *

A. translocation

B. transformation

C. cloning

D. no correct response

Of the ___ different possible codons, ___ specify amino acid and____ signal stop; *

A. 2 , 17. 3

B. 180, 20, 60

C. 64, 61, 3

D. 61, 60, 1

Which of the following statements applies to both point and frameshift mutations? *

A. A base is removed from a DNA template strand

B. A base is added from a DNA template strand

C. A base is substituted for another base in a DNA template strand

D. no correct response

Which of the following describes the effect of a frameshift mutation? *

A. All mRNA codons change

B. Some, but not all mRNA codons change

C. There is no change in mRNA codons

D. All mRNA codons never change

Which of the following statements concerning codons is incorrect? *

A. they are found within mRNA molecules

B. they specify base sequence in terms of four-nucleotides units

C. there are 64 of them

D. no correct response

Which of the following is present in nucleotides but not in nucleosides? *

A. phosphate group

B. heterocyclic base

C. pentose sugar

D. no correct response

Original strand: A T C G T C A A G G C C T A. Mutant strand: A T C T C A A A G G C C T A, what type of mutation? *

A. Insertion

B. Deletion

C. Missense

D. Non sense

Which of the following statements applies to Gene Therapy? *

A. widely used test to detect possible chemical carcinogens

B. Experimental techniques that uses genes to treat or prevent disease

C. used to produce genetically identical copies of an organism

D. Modification of an organism's genetic code through artificial means

Each cycle of the polymerase chain reaction; *

A. doubles the number of product molecules

B. produces two new product molucules

C. removes three nucleotides from a reactant DNA molecule

D. no correct response

Consider the following DNA base sequence 3' TTA ATA 5' . what dipeptide is formed if a DNA point mutation converts ATA to AGA? *

A. Tyr-Ser

B. Ser-Cys

C. Leu-Phe

D. Ser-Leu

The DNA templates strand segment 3' TTC AA CCG TAC 5' upon transcription and translation produces the amino acid sequence Lys-Phe-Gly-Met. What is the amino acid sequence produced if a frameshift mutations occurs in which a G base is inserted after the first C in the original DNA sequence? *

A. Lys-Pro-Trp-His

B. Ser-Tyr-Cys-Trp

C. Lys-Phe-Gly-Met

D. Leu-Pro-Tyr-STOP

Fifteen percent of the bases in a certain DNA molecule are found to be T. What percent of the bases in the same molecule are G? *

A. 15 %

B. 35 %

C. 65 %

D. 55 %

DNA and RNA are different because; *

A. DNA uses uracil while RNA uses thymine

B. DNA is double stranded while RNA is triple stranded

C. DNA is made of four bases while RNA is made of five bases

D. DNA is only found in nucleus while RNA can travel anywhere in the cell

Consider the following mRNA base sequence 5' ACC CAC 3'. what dipeptide is formed if a point mutations converts CAC to AAC? *

A. Leu-Pro

B. His-Thr

C. Arg-Asn

D. His-Asn

In DNA replication the DNA double helix unwinds under the influence of; *

A. DNA Helicase

B. DNA polymerase

C. DNA ligase

D. no correct response

The meaning for the lower case r in the designation rDNA is ; *

A. restriction

B. recombinant

C. retro

D. no correct response

Which of the following is the correct complementary DNA sequence for the DNA base sequence 5' C-G-A-A-T 3" ? *

A. 5' T-A-A-G-C 3'

B. 5' G-C-T-T-A 3'

C. 3' G-C-T-T-A 5'

D. 3' G-G-T-T-A 5'

During translation, the ___site within the ribosome hold the growing amino acid chain while the ____ site holds the next amino acid to be added to the chain. *

A. A,P

B. P,A

C. A,E

D. E,P

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