The two strands in DNA are not identical but complementary. Explain.
Q: For the top three nucleotides, number all the carbons in the sugars, circle the nitrogenous bases,…
A: A polynucleotide is a molecule made up of nucleotide monomers that are joined together by covalent…
Q: If the GC content of a DNA molecule is 60%, what are the molar percentages of the four bases (G, C,…
A: According to the Chargaff rule, the number of Adenines present in DNA is equal to the number of…
Q: A double-stranded molecule of B DNA contains 340 nucleotides. How many complete turns occur in this…
A: DNA duplex model proposed by Watson and Crick is right-handedly coiled and is called B-DNA. A DNA…
Q: Is a DNA molecule neutral, negatively charged, or positively charged? Explain.
A: Deoxyribonucleic acid or DNA is a molecule composed of two polynucleotide chains that coil around…
Q: Why is DNA called a double helix?
A: Step 1 DNA or deoxyribonucleic acid occurs in living systems and can function as genetic materials.…
Q: DNA-driven DNA synthesis forms hydrogen bonds with antisense bases. True or False?
A: Antisense is the non-coding DNA strand of a gene. In the cell, the antisense DNA fills in as a…
Q: H. HD N. A N- H- H. 0=P-0- CH2 H. H. H. OH) H B. Where would this nucleotide hydrogen-bond to its…
A: Each nucleotide is a monomer of nucleic acid such as RNA and DNA. The RNA and DNA differs from each…
Q: Describe the structure and complementary base pairing of DNA.
A: DNA is made up of molecules known as nucleotides.Each nucleotides contains a Phosphate group Sugar…
Q: – Draw a DNA strand with 10 adenine bases followed by 10 cytosine bases. If that same strand bonded…
A: DNA is a double helix, but only one of the two strands contains the information encoding each…
Q: The role of iodine in the Carruthers/Letsinger method of solid-phase DNA synthesis is to act as…
A: Letsinger in 1960's targeted oligonucleotide synthesis using solid phase chemistry. Solid phase…
Q: The building blocks (monomers) of DNA are:
A: DNA the DNA or the Deoxyribose Nucleic Acid is the genetic material of most the living organisms…
Q: The two strands of DNA in a double helix are ______________.
A: The DNA is the genetic material of most of the organisms. It is a a polymer of nucleotides that…
Q: Where would you typically find hydrogen bonds in DNA?
A:
Q: If an RNA strand generates its complementary strand, thus producing a double helix, will a molecule…
A: Nucleic acids are the main information carrying molecules of the cell and by directing the synthesis…
Q: Provide an explanation for why in DNA, the base G is always base paired with C and A is always base…
A: DNA is a double layered structure. The double helix model is explained by Watson and Crick. The two…
Q: Hydrogen bonds are important in DNA replication and transcription. They are relatively weak…
A: Hydrogen bonds are a type of attractive interaction between an electronegative atom and a hydrogen…
Q: Which statement is true regarding an a helix,
A: There are two most common types of secondary protein structures: a. alpha helix…
Q: Why is the orientation of the bases on the inside of the DNA molecule important to the structure and…
A: DNA is an organic molecule that includes genetic information as well as instructions for protein…
Q: Why are introns called introns?
A: In eukaryotes the template strand of DNA gets transcribed into pre-mRNA by the process known as…
Q: The chemical bond involved between the nucleotides in a polynucleotide strand is a _____________ .
A: Nucleotides are involved in the formation of DNA and RNA. It consists of a five-carbon sugar, a…
Q: In NOT more than 200 words, explain how the double-helical structure of DNA suggests a mechanism for…
A: DNA replication: It is a process of producing two identical replicas of DNA for one original DNA.
Q: Explain why DNA is structurally stable
A: DNA is genetic material which stores the genetic information of the body.
Q: The base content of a particular DNA molecule is 36% thymine. What is the percentage of each of the…
A: DNA consists of the bases adenine, guanine, thymine, and cytosine. These 4 bases together account to…
Q: DNA contains thymine rather than uracil. Why is the presence of thymine in DNA advantageous? What…
A:
Q: show the structure for nucleosides of DNA:
A: All living organisms store their genetic information in form of DNA / RNA. This genetic information…
Q: What would the effect be if there was a substitution of one nucleotide for another?
A: Nucleotides:These are the building blocks or structural component of the deoxyribonucleic acid or…
Q: Why is DNA less susceptible to base catalyzed hydrolysis than RNA? DNA lacks a 2'OH group DNA lacks…
A: DNA is a sequence of deoxyribonucleotides that contains genetic information of organisms. RNA is a…
Q: Why is a methylated base employed in DNA and not in RNA?
A: DNA and RNA are the two types of nucleic acids. Deoxyribose nucleic acid (DNA) is present in all…
Q: Name the bases in the pentanucleotide with the sequence G-A-U-C-A. Does this come from RNA or DNA?…
A: The nucleic acids Deoxyribose sugar (DNA) and Ribose sugar (RNA) are nucleotides that are made up of…
Q: Why adenosine tri phosphate is called Biological coin ?
A: Introduction: The cell is considered life's fundamental unit as all tissues, and any organized…
Q: In a single strand of DNA, is it ever possible for the number of adenines to be greater than the…
A: In a DNA molecule purine always pairs with a pyrimidine base. Adenine is a purine base and thymine…
Q: In a DNA oligonucleotide, two nucleosides are linked together with a:
A: RNA (ribose nucleic acid) is more sensitive to alkaline hydrolysis because it has a hydroxyl group…
Q: What is the structure of DNA' What is the structure
A: Answer. DNA is the genetic material of an organism that carries genetic information and transfer it…
Q: Explain the importance of Chargaff's rules and the complementary nature of nucleotide bases.
A: Erwin Chargaff proposed Chargaff’s rule. Chargaff’s rule played important role in the discovery of…
Q: Using the DNA figure below to identify structures of the following letters: A= B= C= D= E= F: Circle…
A:
Q: What would be the implication for the shape of the DNA molecule if a purine was always matchec cross…
A: Purines and pyrimidines are nucleotide bases in DNA . Purine consists of Adenine and Guanine while…
Q: If the forces—hydrogen bonds and stacking forces— holding a helix together are weak, why is it…
A: DNA molecule is a double-stranded structure. These double strands are in the form of a helix, thus…
Q: DNA helicase
A: DNA helicases are defined as molecular motors. It disrupts the hydrogen bonds which hold together…
Q: Using the DNA figure below to identify structures of the following letters: A= B= C= D= E= F: Circle…
A: DNA molecule is a polymer of nucleotides and each nucleotide has three main components that are…
Q: How would the bonding of a purine with a purine alter the DNA molecule?
A: DNA is a macromolecule which is a polymer of nucleotides. Each nucleotides has three parts- 1. A…
Q: The base content of a particular DNA molecule is 36% Thymine. What is the percentage of each of the…
A: DNA is the deoxyribonucleic acid, which consists of various biological information that is present…
Q: Sequence changes in DNA are called ______________.
A: Evergy organism DNA consists of the unique nucleotide sequence that carries the information a cell…
Q: Why would organisms break down DNA in their surroundings?
A: DNase or deoxyribonuclease refers to an enzyme that is involved in the hydrolytic breaking of the…
Q: Explain, on the basis of nucleotide structure, why DNA synthesis proceeds in the 5’-to-3' direction.
A: The deoxyribonucleic acid (DNA) is known as a double helix structure in which two strands are joined…
Q: Which of the following is a difference between RNA and DNA?
A: DNA and RNA are both genetic material present in eukaryotes and prokaryotes respectively.…
The two strands in DNA are not identical but complementary. Explain.
Step by step
Solved in 2 steps
- Is a DNA molecule neutral, negatively charged, or positively charged? Explain.The variable structures of a nucleotide are the sugar and the phosphate group. (a). Say if the statement written above is true or false. (b). Give ONE reason for your answer in part (a).If an RNA strand generates its complementary strand, thus producing a double helix, will a molecule of this be structurally identical to that of DNA? Explain.
- Hydrogen bonds are important in DNA replication and transcription. They are relatively weak chemical bonds. Why is this a desirable feature for DNA?In a DNA Double helix ,why doesn't an A or T form two hydrogen bonds(out of the three possible) with G or C? Explain in detail.Cytosine makes up 42% of the nucleotides in a sample of DNA from an organism. Approximately what percentage of the nucleotides in this sample will be thymine?
- TRUE OR FALSE a) The 2 chains composing one double helix run in opposite directions; they are antiparallel (one is 5’->3’ and the other 3’->5’). b) DNA molecules can perform their function in replication and transcription as long as the hydrogen bonds between the bases remain intact.Provide an explanation for why in DNA, the base G is always base paired with C and A is always base paired with T?If DNA synthesis occurs without error, the resulting double-stranded DNA is an exact copy of the original double-stranded DNA (exact in that the base sequences are identical). Does this mean then that in DNA synthesis, the two single-stranded templates are identical? Explain.
- Explain, on the basis of nucleotide structure, why DNA synthesis proceeds in the 5’-to-3' direction.DNA is comprised of four different bases. What are the four different bases? What is so significant about the four different base?How do these ratios compare with the (A + G)/(T + C) ratio found in DNA? Explain.