intrastrand; same
Q: In 1950, using “blender” experiment, Hershey and Chase demonstrated that DNA, not protein, is the…
A: Hershey and Chase came to the conclusion that the genetic substance was DNA rather than protein.
Q: Replication of DNA produces two daughter DNA molecules in which a. one daughter molecule contains…
A: Cell division is an important process that results in the formation of multiple cells from a single…
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Q: When UV light strikes DNA at a location where two thymines are side by side, what happens?
A: UV stands for ultraviolet rays. It causes a mutation in the DNA.
Q: The two complementary strands of the DNA double helix are held to each other by (a) ionic bonds…
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Q: A) What is the difference between a nucleoside and a nucleotide? B) Give any two differences between…
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Q: During DNA replication, the Okazaki fragments are Select one: O a. single-strand RNA O b. RNA-DNA…
A: Option c
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Q: Which of the following statements are correct? explain your answers.A. A DNA strand has a polarity…
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Q: If thymine makes up 7% of the bases in a specific DNA molecule, what percent of the bases are…
A: This can be solved using Chargaff's rule which states that in any sample of DNA adenine always pairs…
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A: Asked : Reason of Absorbance increases by disruption of DNA structure.
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Q: Type of DNA spontaneous mutation that can explain why uracil is not found in DNA a.depurination…
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Q: The DNA molecules in eukaryotes including humans are negatively supercoiled while that in…
A: Genetics is a part of science worried about the investigation of qualities, hereditary variety, and…
Q: • In a ______________, DNA wraps twice around a corecomposed of histones H2A, H2B, H3, and H4.…
A: Chromosomes are the structure in which genes are located. Eukaryotic chromosomes are composed of…
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Q: Histones and DNA have a strong attraction for each other because...
A: Histones are proteins that play an important role in the packing of DNA into cells, chromatin, and…
Q: A.......... is the condensed, visible form of chromatin.
A: Inside the nucleus of eukaryotic cells, chromatin is a combination of DNA and proteins that creates…
Q: If a molecule of DNA contains 42% thymine, then there is adenine, cytosine, and guanine.
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Q: Describe the three important of the protein DnaA.
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A: When there is prolonged exposure to UV light, the DNA sequence forms the thymidine dimer, which…
Q: In a DNA molecule, Select one: O A. The nucleotides are covalently bonded to one another. B. The…
A: DNA(deoxyribonucleic acid) is a double-stranded helical genetic material containing thousands of…
Q: If 18% of the nucleotide bases in a DNA molecule are Guanine (G) A. What % of the bases are…
A: According to chargraff rule Number of purine= number of pyrimidines
Q: Enzymes that break down DNA catalyze the hydrolysis of the covalent bonds that join nucleotides…
A: DNA stands for deoxyribonucleic acid. It consists of deoxyribonucleotides.
Q: The Bacteria Escherichia coli DNA genome has a molecular mass of about 3.1 X 109 In your answers,…
A: The bacterium Escherichia coli, commonly known as E. coli belongs to the family of gram negative…
Q: The "D" in DNA stands for which of the following?
A: DNA : Chemical name for molecule which carries genetic instructions in the living organisms.
Q: הנא (b) A section of DNA was analysed and 24% of its bases were found to be adenine. Calculate the…
A: DNA is a polynucleotide molecule made up of 4 types of nucleotides according to the nitrogen bases…
Q: Neutralizing their positive charges would have which effect on the histone proteins? a. They would…
A: Histones are the proteins molecules that are positively charged, found in eukaryotic cells. The…
Q: Enzymes that break down DNA catalyze the hydrolysis of thecovalent bonds that join nucleotides…
A: Enzymes are biological molecules (typically proteins) that are vital for life and serve a wide range…
Q: The experiment of Erwin Chargaff proved that the number of adenines (A) and thymines (T) in DNA is…
A: There are four nucleotide bases in DNA, namely- Adenine (A), Thymine(T), Cytosine (C) and Guanine…
Q: Which of the following is NOT true of deoxyribonucleic acid (DNA)? A. None of the other four…
A: DNA - deoxyribonucleic acid is a polymer of nucleotides which acts as the genetic material in all…
Q: The image below shows the base cytosine and a methylated form of cytosine that occurs frequently in…
A: In the mammalian genome, DNA methylation is an epigenetic mechanism involving the transfer of a…
Q: The formation of pyrimidine dimers results from which of the following? a. Spontaneous errors by…
A: Pyrimidine dimers cause mutations in the DNA. When two thymine residues in the same strand form…
Q: If a molecule of DNA contains 12% thymine, then there is adenine, cytosine, and guanine.
A: DNA refers to Deoxyribonucleic acid. It is genetic material of almost all the organisms, except few…
Q: Enzymes can break down the DNA catalyze the hydrolysis of the covalent bonds that join nucleotides…
A: Enzymes are biological molecules (typically proteins) that are vital for life and serve a wide range…
Q: Given the choices, a. 26 b. 23 c. 27 d. 21 how many hydrogen bonds are present in a DNA double…
A: The sequence is- GCTGTGCACT The complementary strand is- CGACACGTGA The rules of base pairing (or…
Q: With respect to DNA binding motifs and their characteristics choose the correct answer O A. All DNA…
A: DNA-binding domains (DBD) are protein domains that can fold independently. They have at least one…
Thymine dimers are __________ crosslinks formed between two pyrimidines on the ______ strand of DNA.
| a. |
interstrand; same |
|
| b. |
intrastrand; same |
|
| c. |
interstrand; different |
|
| d. |
intrastrand; different |
Step by step
Solved in 4 steps
- Please choose the correct answer. Given the sense strand of DNA, A T G T A A C C G C G C A A G G G C A T G T G A, how many amino acids are in the protein coded by this piece of DNA? a. five b. six c. seven d. eightIf thymine makes up 15 percent of the bases in a specific DNA molecule, what percentage of the bases is cytosine?Which of the following statements are correct? explain your answers.A. A DNA strand has a polarity because its two ends contain different bases. B. G-C base pairs are more stable than A-T base pairs.
- The antiparallel nature of DNA refers to a. its charged phosphate groups. b. the pairing of bases on one strand with bases on the other strand. c. the formation of hydrogen bonds between bases from opposite strands. d. the opposite direction of the two strands of nucleotides.A key difference between B DNA and Z DNA is thata. B DNA is right-handed, whereas Z DNA is left-handed.b. B DNA obeys the AT/GC rule, whereas Z DNA does not.c. Z DNA allows ribose in its structure, whereas B DNA uses deoxyribose.d. Z DNA allows uracil in its structure, whereas B DNA uses thymine.Cystic Fibrosis is caused by which of the following? a. Replacement of three nucleotides with a new three nucleotide sequence b. Addition of three nucleotides c. Deletion of three nucleotides
- The statement “DNA replicates by a semiconservative mechanism” means that (a) only one DNA strand is copied (b) first one DNA strand is copied and then the other strand is copied (c) the two strands of a double helix have identical base sequences (d) some portions of a single DNA strand are old and other portions are newly synthesized (e) each double helix consists of one old and one newly synthesized strandChoose the combination of answers that most accurately completes the statement. Why must the lagging strand of DNA be replicated in short pieces? a. because of limited space b. otherwise, the helix will become distorted c. the DNA polymerase can synthesize in only one direction d. to make proofreading of code easierChoose the combination of answers that most accurately completes the statement.Why must the lagging strand of DNA be replicated in short pieces? a. because of limited space b. otherwise, the helix will become distorted c. the DNA polymerase can synthesize in only one direction d. to make proofreading of code easier
- Explain to a friend the characteristics a molecule must have to function as genetic material and then explain the important features of the structure of DNA that are consistent with its role as the chemical basis of heredity.The formation of pyrimidine dimers results from which of the following? a. Spontaneous errors by DNA polymerase b. Exposure to gamma radiation c. Exposure to ultraviolet radiation d. Exposure to intercalating agentsPeople used to think that the genetic code could be found in proteins, because there are so many. How do you think the genetic code can be stored in DNA with just 4 choices?