It involves cutting out and replacing a damaged or inappropriate base or section of nucleotides Damage tolerance .A O Damage reversal .B O Damage removal .C O DNA damage.D O
Q: If 30% of an organism’s DNA is thymine, then a. 70% is purine.b. 20% is guanine.c. 30% is adenine.d.…
A: Dna is made from nitrogenous bases in which adenine binds to thymine Guanine binds to cytosine
Q: . Viroids are O A. Causes swine flu O B. None of the above O C. misshaped protein molecules O D.…
A: Subviral particles are infectious agents that are smaller and simpler than viruses. They resemble…
Q: The technique of DNA sequencing involves performing _______________ . A) northern blotting B)…
A: DNA sequence can be determined by performing DNA sequencing method in vitro.
Q: Double-stranded breaks are repaired by: a). direct reversal of DNA damage b). recombinational repair…
A: Ionizing radiation and radio-mimetic compounds induce DNA double-strand breaks (DSBs), but they may…
Q: Ultraviolet (UV) radiation is damaging because it A. Prevents Translation B. Causes Mutation in the…
A: DNA is the genetic material which contains all the information for survival of an organism. it is…
Q: Which of the following DNA repair systems may involve the removalof a segment of a DNA strand?a.…
A: Answer is b.) Nucleotide excision repair.
Q: It is a permanent change in the DNA sequence that makes up a gene. Mutations range in size from one…
A: Mutation is any certain change in chromosome or gene of a species and this change can transfer from…
Q: DNA is a large molecule and is wrapped around proteins called: O a. Histones O b. Ligase O c.…
A: DNA (deoxyribonucleic acid) is the molecule that conveys genetic information for an organism's…
Q: Given DNA strand: 5' T G T T A G T C G A A T 3' Write its complementary DNA and its mRNA.
A: The DNA or deoxyribonucleic acid is the double standard helical macromolecule. It is the genetic…
Q: Are mutations harmful?a. Yes, because the DNA is damaged.b. No, because changes in the DNA result in…
A: Mutations in biology is defined as a change in DNA sequence from normal sequence. Mutations can be…
Q: The polarity of DNA synthesis is A. 5' 3'. O B. 3' 5'. O C. 5' 2'. OD. 2- 5'. E. None of the choices…
A: Answer - option A - 5'-->3' DNA replication is semiconservative. Each strand in the double…
Q: Variable number of tandem repeats (VNTRs) in the DNA molecule are highly useful in: A) Recombinant…
A: VNTRs are repeated units that occur in the genome and display length variations. The VNTRs consist…
Q: t the protein level, mutation resulting in changing one amino acid for ar re DA) Neutral mutations…
A: Mutations are abrupt changes in the DNA sequences which may bring about changes in the amino acid…
Q: X-ray exposure often leads to DNA damage such as double strand breaks which is categorized as a type…
A: An individual's bodily design is determined by DNA. The DNA that is passed down from parents to kids…
Q: Which of the following has the self-repairing mechanisms?a) DNA and RNAb) DNA, RNA and proteinc)…
A: Cells and tissues have the ability to repair or heal themselves. When the cells are damaged, new…
Q: If a nucleotide is replaced by a different nucleotide, this is called a(n)…
A: Here we will discuss different types of mutation based on the nucleotide replacement, addition and…
Q: which of the chemicals in the process removes the proteins from the dna
A: Deoxyribonucleic acid is an atom made out of two polynucleotide chains that loop around one another…
Q: The main function of a DNA molecule is to______ . a. store heritable information b. carry a…
A: Genetics is the branch of biology that deals with genetic material like DNA, RNA, inheritance.…
Q: The DNA strand whose complementary RNA contains a stop codon starting at the 5' end DNA A = 5'…
A: In our body genetic information is stored in form of DNA. DNA can be converted to RNA by…
Q: The proteins and other substances that bind to the DNA rely mostly on non-covalent interaction to…
A: This statement is true. The proteins binds to DNA are of two types the histone and the non histone…
Q: Which is the best definition of a genetic mutation? An error in a code. OA mistake during copying.…
A: A Mutation happens when a DNA gene is harmed or changed so as to adjust the hereditary message…
Q: True or False? Mutations are always harmful to a cell or a virus. O True O False
A: A mutation is considered as a change in a DNA sequence. Mutations can be a result of DNA copying…
Q: Which of the following mutations of the DNA sequence TTT TÁC ÁCT would potentially have the least…
A: The genetic information from the DNA is first transcribed into mRNA. The mRNA contains codons, which…
Q: A prion is a disease-causing agent composed ofa. cells.b. nucleic acid with a protein coat.c.…
A: Cell is the basic structural, functional, and biological unit of all known organisms. The cell…
Q: . Which type of DNA repair is defective in severe combined immunodeficiency disease (SCID)?…
A: When there is defect in DNA damage repair , it leads to various human diseases .
Q: When DNA replication begins,_______ . a. the two DNA strands unwind from each other b. the two DNA…
A: DNA replication is a process by which DNA makes copies of itself and this process requires lots of…
Q: A proteih was Which of the following mutations will least effect the protein's function? a) A…
A: If a point mutation does not produce any change in the the amino acid, it's called a SILENT…
Q: CG Islands in DNA are important for :- A) Methylation B) Acetylation C) t- RNA synthesis D)…
A: CG islands are also known as CpG islands in DNA that play a vital role in gene expression .
Q: DNA is used to make and RNA is used to make RNA, proteins RNA, DNA Proteins, DNA Extra DNA, TRNA
A: *The answer of the question is option 1 that is RNA and Proteins. * DNA is used to make RNA and RNA…
Q: 1. What is a mutation? A. the specific sequence of bases in a molecule of DNA B. a change in the…
A: A mutation arise spontaneously at low frequency owing to chemical instability of purine and…
Q: Which statement regarding DNA replication is false? A. On a DNA strand that is being…
A: answer : On a DNA strand that is being synthesized, the 3' end is growing.
Q: what is the Importance for dna inhibitors antibiotics ؟
A: Introduction: Antibiotics are the agent which either kill or stops the growth of bacteria. The…
Q: Chemical agents can cause mutations by ethylating guanine residues in DNA. Would that be true or…
A: Mutations are the inheritable changes in the DNA. These mutations can change the sequence of DNA by…
Q: Which of the following is NOT common to all repair mechanisms? A. Detection of the lesion B. Removal…
A: A change in the fundamental structure of DNA that is not reproduced when the DNA is replicated is…
Q: Choose the best explanation for how a mutation affects an organism. The DNA stays the same, but the…
A: The biochemical molecule that is built up with “two polynucleotide chains” is called…
Q: A.) There is no change in the DNA sequence if nucleotides are added or removed, it will have no…
A: D. Both A and B are incorrect. There is no change in the DNA sequence if nucleotides are added or…
Q: The initial mechanism for repairing nucleotide errors in DNA is ________. a. mismatch repair b. DNA…
A: The biochemical molecule that is built up with two polynucleotide chains is called DNA…
Q: t is points mutations.
A: A mutation may be a modification in a very deoxyribonucleic acid sequence. Mutations may end up from…
Q: The transformation process of messages carried by mRNA into amino acid sequences is called O DNA…
A: The genetic information encoded in the DNA must be transmitted from one generation to the next in…
Q: Compared to DNA, RNA; a) Uses thiamine b) Has an OH group on the 3' carbon and DNA does not Oc) Is…
A: DNA or Deoxyribonucleic acid is the genetic material that is passed from one generation to another.…
Q: A slight change in a single amino acid in polypeptide chain results in Select one: O a. • Mutation O…
A: Amino acids are considered the organic compounds that contain the amino (–NH2) and carboxyl…
Q: A.) Damaged DNA can be reversed if nucleotides can be replaced with a proper nucleotide for a…
A: DNA repair : The DNA molecule may undergo some alternations due to various factors like exposure to…
Q: A gene is a piece of DNA that codes for a protein. Genes are transcribed into MRNA and are on the…
A: The fundamental physical and functional unit of heredity is the gene. DNA is the material that makes…
Q: When DNA is copied, sometimes a mutation can occur where an incorrect, base pairing appears within…
A: In biology, a mutation is an alteration in the nucleotide sequence of the genome of an organism,…
Q: The __________ strand is made in fragments called ___________.
A: Semi-conservative replication, also known as DNA replication, is a biological mechanism that…
Q: At the DNA level, a mutation in a protein coding region where a single base is replaced by another…
A: Mutation is the abrupt change that occurs in the sequence of DNA resulting In altered phenotype.…
Q: Since we have many different repair mechanisms, the loss of any one repair mechanism won't cause any…
A: DNA repair involves the set of processes involved in the correction of the damage caused to the DNA…
Q: Both DNA and RNA… a)move to different parts of the cell are b)nucleic acids c)are…
A: There are two key differences between DNA and RNA: (a) Ribose is found in RNA, whereas deoxyribose…
Q: The code on a DNA strand reads G C G T A A T G A. The mRNA strand would read:
A: Given: The code on a DNA strand reads GCGTAATGA.
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- A.) Homologous recombination repair are prone to error and can cause loss of genome integrity. B.) Reversal and repairing of DNA strands damage is important in maintaining genome integrity. a. Statement A is correct b. Statement B is correct c. Both A and B are correct d. Both A and B are incorrectWhich of the following is not essential to carry out the polymerasechain reaction?a. primers b. DNA polymerase c. gel electrophoresis d. high temperatureWhich of the following is FALSE about current Sanger dideoxy DNA sequencing procedures? a. Chain termination occurs during synthesis of a new DNA strand. b. Many steps can be automated. c. No DNA is synthesized in the procedure. d. Fluorescent molecules can be used to detect the DNA.
- When working with the gel electrophoresis chamber, what must we keep in mind? A. Keeping the gel flat on the table without any buffer solution B. Not changing your pipette in between DNA samples C. Not shaking the chamber after the DNA has been loaded D. Loading two DNA samples per a single wellA. Changes and damages to the DNA is permanent and has no remedy.B. Damage to the DNA can be reversed via replacing the damaged nucleotides in the DNA sequence. a. Statement A is correctb. Statement B is correctc. Both A and B are correctd. Both A and B are incorrectWhich of the following statements about DNA probes are false? a. Probes can be labeled with a fluorescent dye to facilitate detection. b. Probes can be labeled with radioactive phosphorus to facilitate detection. c. Probes are typically composed of double stranded pieces of DNA. d. Probes are typically composed of single stranded pieces of DNA.
- To prepare a sample for electrophoresis, samples of the DNA being investigated (a) are put into each of four tubes and induced to replicate (b). Also, into the first tube, an adenine terminator was added in addition to all the other nucleotides. As the complementary strand was being constructed, the terminators were occasionally incorporated wherever an adenine nucleotide was used. This random incorporation resulted in all possible lengths of DNA pieces that had an adenine on the end (c). The same process was conducted in the other tubes with thymine, guanine and cytosine terminators; one treatment for each of the four lanes in the gel. Electrophoresis separated the replicated pieces of DNA by size. Staining the gel revealed which lengths of the complementary DNA were terminated by which nucleotide terminators (d). The gel consists of four “lanes,” labeled A, T, G, and C, indicating either adenine, thymine, guanine, or cytosine terminated pieces of DNA. By “reading” down the gel, you…Linkage analysis ________. A. is used to create a physical map B. Involves breaking and rejoining of DNA artificially (incorrect) C. Requires radiation hybrid mapping D. Is based on natural recombination process thank you in advance for your help!Which of the following factors favors the formation of the Random DNA Coil? a Enthalpy b Base-Pairing c Phosphate group interactions d Stacking Energies
- Dr. A. Zion wants to study the flight gene of birds. In order to study the DNA, he must first perform DNAWhich of the following reagents is NOT correct reagents for the Sanger method of DNA sequencing? a. All four dNTPs b. a small amount of specific ddNTP c. DNA Polymerase d. DNA template to be sequenced e. Pair of primersThe diagram illustrating the polymerase chain reaction (PCR) technique is provided below. How does the number of copies of the DNA region being amplified change at the end of each cycle of the polymerase chain reaction? Group of answer choices a. The number of copies triples (or triplicates). b. The number of copies does not change. c. The number of copies quadruples (or quadruplicates). d. The number of copies doubles (or duplicates). e. The number of copies halves.