Select the examples of mutation. A gene is copied twice during DNA replication. Several base pairs are skipped during DNA synthesis. A single DNA base pair is replaced with a different base pair. An incorrect amino acid is added during protein synthesis. An incorrect base is added to an RNA sequence.

Select the examples of mutation. A gene is copied twice during DNA replication. Several base pairs are skipped during DNA synthesis. A single DNA base pair is replaced with a different base pair. An incorrect amino acid is added during protein synthesis. An incorrect base is added to an RNA sequence.

Name: Select the examples of mutation.A gene is copied twice during DNA rep
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Description: Select the examples of mutation.A gene is copied twice during DNA replication.Several base pairs are skipped during DNA synthesis.A single DNA base pair is replaced with a different base pair.An incorrect amino acid is added during protein synthesis

Biology Today and Tomorrow without Physiology (MindTap Course List)

5th Edition

ISBN:9781305117396

Author:Cecie Starr, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Christine Evers, Lisa Starr

Chapter6: Dna Structure And Function

Section: Chapter Questions

Problem 9SQ

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Which of the following can only arise as a spontaneous mutation? Group of answer choices Gamma rays penetrate tissue and damage DNA Base analogs cause DNA to pair with the wrong base. Reactive forms of oxygen damage DNA In replication, thymine mispairs with guanine Nitrous acid deaminates cytosine
Which of the following is NOT true about mutations? A. Mutations can be harmful but not beneficial to the cell B. Nucleotide substitution in DNA can cause nonsense mutations C. Nucleotide substitution in DNA can cause missense mutations D. Mutagens increase the rate of mutation, but mutations are still random E. Nucleotide insertion or deletion in DNA can cause frameshift mutations
Which of the following is part of the elongation step of DNA synthesis?a. pulling apart the two DNA strandsb. attaching complementary nucleotides to the template strandc. untwisting the DNA helixd. none of the above
MUTATION: Fill in the correct nucleotide base pairing and amino acid sequence of the mutated DNA -Answer/fill the blank circles provided in the image.
Are mutations harmful?a. Yes, because the DNA is damaged.b. No, because changes in the DNA result in better alleles.c. Yes, because mutated proteins don’t function.d. It depends on how the mutation affects the protein’s function.
The most common source of DNA mutation is _____; however, these mistakes are typically corrected. a. errors in DNA replication b. UV light c. cigarette smoke d. errors in protein synthesis e. pesticides on the food we eat
Which of the following best explains how the structure of DNA determines the structure of proteins? Top of Form The genes contain the instructions to make DNA, which is used to synthesize proteins. Cells contain DNA, which is made up of genes that contain the instructions to make proteins. DNA is a segment of a gene that contains the code to synthesize proteins. The DNA in proteins make up cells that contain the code that determine the structure of DNA.
Mutations can be caused by which process? faulty DNA repair nondisjunction base sequence deletion All of the above
Which of the following contribute to introducing genetic change into genomes? (select all the apply) -Errors in DNA repair resulting in translocations of DNA sequence between chromosomes - Movement of transposons -Transcription into RNA results in point mutations - Translation results in deletion of introns - Random errors when DNA is copied (replicated)
What gives the DNA molecule a negative charge? nucleobases deoxyribose ribose phosphate groups
Which of the following is true about DNA polymerase?a) It can synthesize DNA in the 5’ to 3’ directionb) It can synthesize DNA in the 3’ to 5’ directionc) It can synthesize mRNA in the 3’ to 5’ directiond) It can synthesize mRNA in the 5’ to 3’ direction
What can cause mutations in the DNA sequence? Select all that apply. A. Failure of repair enzymes to recognize mismatched nucleotides before and during DNA replication B. Recognition of mismatched bases by repair enzymes before and during DNA replication C. Exposure of cells to ionizing radiation D. Nucleotide errors occurring during DNA replication