Exposure to chemical mutagens can have significant effects on DNA structure. Which of the following are examples of such effects? Multiple select question. Double-stranded breaks in DNA Insertions and deletions during DNA replication Insertion of a transposon sequence into a gene Inappropriate base pairing during DNA replication Formation of thymine dimers
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This can result in the loss of genetic information or the incorrect rejoining of DNA strands, leading to mutations. Show more…
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Mutagens can cause mutations by a. chemically altering DNA nucleotides. b. disrupting DNA replication. c. altering the genetic code of an organism. d. all of the above. e. a and b only.
What can cause mutations in the DNA sequence? Select all that apply. a. Exposure of cells to ionizing radiation b. Failure of repair enzymes to recognize mismatched nucleotides before and during DNA replication c. Recognition of mismatched bases by repair enzymes before and during DNA replication d. Nucleotide errors occurring during DNA replication
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1-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
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