methylation in prokaryotes is FALSE? DNA methylation is catalyzed by DAM methylase on adenine bases. DNA methylation is used by the mismatch repair proteins to distinguish which strand has the correct base when there are mismatched base pairs. Full methylation of both DNA strands depends on the cell's nutrient status Immediately after DNA replication, each daughter helix contains one

methylation in prokaryotes is FALSE? DNA methylation is catalyzed by DAM methylase on adenine bases. DNA methylation is used by the mismatch repair proteins to distinguish which strand has the correct base when there are mismatched base pairs. Full methylation of both DNA strands depends on the cell's nutrient status Immediately after DNA replication, each daughter helix contains one

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter8: The Structure, Replication, And Chromosomal Organization Of Dna

Section: Chapter Questions

Problem 23QP: How does DNA replication occur in a precise manner to ensure that identical genetic information is...

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Which of the following statements about DNA strands is true? (You may choose more than one.) Group of answer choices Some genes are transcribed from the template strand, others are transcribed from the non-template strand The promoter determines which strand is the (-) strand The promoter determines which strand is the template strand The template strand is always the (-) strand Some genes are transcribed from the (-) strand, others are transcribed from the (+) strand Some proteins are translated from the - strand and some proteins are translated from the + strand
Which of the following features of the DNA double helix are recognized by proteins that interact with DNA? Mark all that apply. The minor groove The major groove The DNA sequence Proteins do not interact with DNA
. During DNA repair in prokaryotes and eukaryotes, which of the following enzymes replaces the damaged nucleotides, that were excised from the DNA strand, by inserting the correct nucleotides? topoisomerase DNA polymerase DNA helicase an exonuclease DNA ligase
Which of the following statements about DNA replication is INCORRECT? It is powered bythe hydrolysis of ATP. Each strand withinthe DNA double helix is used as a template for synthesis of a new strand. It requires that both strands of the double helix be separated from each other. It proceeds withthe addition of new nucleotides to the 3′ end of a growing DNA strand. It begins atmultiple origins of replication sites along eukaryotic chromosomes.
Which of the following is NOT true of DNA Methylation. A. DNA methylation is typically correlated to gene repression. B. On a given gene, histone modifications or DNA methylation could be used, but not both at the same gene. C. DNA methylation can be used in mismatch repair to identify the parent strand after DNA replication. D. DNA methylation typically occurs on dCTP nucleotides in eukaryotes. E. DNA methylation can be inherited through mitosis.
Which of the following DNA repair mechanisms involves the 3’ to 5’ exonuclease function of DNA polymerase? postreplication repair mismatch repair SOS response DNA proofreading base excision repair
For each statement below indicate whether it is true or false: A. Strand discrimination during the process of DNA repair is based on DNA methylation B. The genetic code has 64 amino acid-specifying codons C. Mutations in germline cells are more consequential to subsequent generations than mutations in somatic cells.
DNA replication is a process that involves copying the DNA molecule. If a single base was miscopied, what would be a possible result of this for the cell in which it happened? Top of Form All the proteins the cell creates from the miscopied strand will do different jobs than the old ones. If the new sequence codes for the same amino acid as the original cell, it will function normally. Both new DNA strands will end up together in a new cell, and the inaccurate one will be discarded. Any miscopied DNA will be replaced with an accurate DNA copy once the cell divides.
Which of the following is involved in the repair of cyclobutane pyrimidine dimers? DNA pol I DNA ligase reverse transcriptase a photolyase
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 statements can be said about the enzyme telomerase? Select all the answers that apply. It removes RNA primers. It is highly expressed in cancer cells. It extends the length of telomeres. It exhibits reverse transcriptase activity. It shortens the ends of chromosomes.
What determines the nucleotide sequence of the newly synthesized strand during DNA replication? the particular DNA polymerase catalyzing the reaction the relative amounts of the four nucleoside triphosphates in the cell the nucleotide sequence of the template strand the primase used in the reaction the arrangement of histones in the sugar phosphate backbone