What statement about DNA polarity is TRUE?
Q: How many adenine bases are there if there are eight thousand cytosine bases in a fifteen thousand bp…
A: Question - How many adenine bases are there if there are eight thousand cytosine bases in a fifteen…
Q: How does the DNA hold information?
A: Deoxyribonucleic acid (DNA) is a polymer made up of two polynucleotide chains that coil around each…
Q: Why is Dna twisted ?
A: The abbreviation of DNA is deoxyribonucleic acid. It is a hereditary genetic material possessing the…
Q: How can two DNA fragments pair with each other?
A: DNA stands for deoxyribonucleic acid. It is the genetic material of the organisms that transfer from…
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: Each cell of the human body contains 46 chromosomes. How many DNA molecules does this statement…
A: Chromosomes are thread-like molecules that carry hereditary information for everything from height…
Q: What role does complementary base pairing play in the replication of DNA?
A: Complementary base pair is a concept where in DNA, adenine(A) always binds to the thymine(T), and…
Q: If thymine makes up 15 percent of the bases in a specific DNA molecule, what percentage of the bases…
A: Answer- According to the chargaff's rule A/T=G/C that means the number of purines and pyrimidines…
Q: What holds double-stranded DNA together
A: (The answer to the first question is given. For the second question please repost it as mathematics…
Q: What is the meaning of the term genetic material?
A: The genetic material is important for all organism. In eukaryotes, the genetic material is enclosed…
Q: Describe the characteristics of a heritable molecule. Why is DNA a good heritable molecule?
A: Given: The characteristics of a heritable molecule DNA.The DNA is a molecule that encodes the…
Q: What is the smallest unit of DNA is called ________?
A: DNA is a lengthy molecule made of repetitive units called nucleotides. these nucleotides are…
Q: Noncoding DNA sequences are called __________________.
A: Genes are a hereditary determinant of a specific biological function located at a fixed position on…
Q: Does DNA act in trans or cis?
A: Gene expression is a process by which the genes are turned on to form RNA and proteins.…
Q: What is each strand of a double-stranded chromosome called?
A: DNA is the nucleic acids present in the organisms. DNA is the deoxy-ribose nucleic acid in which…
Q: Which conditions favour the A and Z conformations of DNA?
A: DNA is the chemical molecule that carries all living things with genetic instructions. Two strands…
Q: DNA sequences in which multiple copies are arranged nextto each other are called…
A: Repetitive sequences are the DNA fragments that are present in multiple copies within a genome.…
Q: How will each of the following substances or conditions affect DNA structure? a. ethanol; b. heat;…
A: Deoxyribonucleic acid or DNA is a molecule composed of two polynucleotide chains that coil around…
Q: If you have a strand of DNA that is GAGATCTCGC, what is the complimentary strand?
A: DNA is a double helical structure and it is called the genetic material of the cell since carries…
Q: Can you think of any difference between DNAs and DNase?
A: Genetic information is stored in nucleic acids. There are two types of nucleic acid found in a cell…
Q: Would you expect to find adenine– guanine or cytosine–thymine base pairs in DNA? Why?
A: The DNA is a genetic material that is present in a membrane-bound nucleus in the case of eukaryotes…
Q: Is DNA a positive or a negative charged molecule?
A: DNA stands for Deoxyribonucleic acid. It is a molecule composed of two chains that coil around each…
Q: Can DNA be transferred from one object to another?
A: Deoxyribonucleic acid, is that the genetic material in people and most different organisms. Nearly…
Q: Why does DNA replication produce two daughter strands that are identical to each other and to the…
A: DNA replication occurs in S phase. DNA replication occurs in 5’ to 3’ direction. DNA replication…
Q: The rungs in the middle of the twisted ladder of a DNA are called
A: DNA stands for deoxyribonucleic acid, which may be a molecule that contains the informational an…
Q: a. How many different DNA strands composed of100 nucleotides could possibly exist?b. How many…
A: Deoxyribonucleic acid is the genetic molecule of the majority of the organism. According to the…
Q: What role does complementary base pairing play in thereplication of DNA?
A: DNA is the genetic material in most living organisms. It is the information hub of the cell that…
Q: How can a DNA molecule make an exact copy of itself?
A: Step 1 Replication is an essential property of genetic material. It is the formation of exact…
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 a chromosomes?
A: Strasburger first reported the presence of chromosome in eukaryotic cell. The term ‘chromosome’ was…
Q: How many chromosomes are present in a human cell?
A: In humans, 1 copy of chromosome is inherited. One copy is from the female parent and the other from…
Q: Is a chromosome a single or double DNA molecule?
A: Deoxyribonucleic acid (DNA) is a double helical structure, which is composed of nucleotides. The two…
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: If a DNA double helix that is 100 base pairs in length has32 adenines, how many cytosines, guanines,…
A: According to the given question above, there are a total of 100 base pairs in length. There are 32…
Q: What are the qualities of an appropriate sequence in DNA chromatogram? Why?
A: Introduction: DNA stands for deoxyribonucleic acid. It's made up of nucleotides, which are…
Q: Chromosomes are made of a protein, which is that protein?
A: Chromosomes are present in nucleus of cell. Every single human cell has approximately two meter long…
Q: Why is DNA more stable than RNA?
A: RNA is the single stranded nucleic acid. DNA is the double stranded nucleic acid.
Q: Why is it incorrect to suggest that DNA duplicates itself?
A: DNA replication is copying a double-stranded DNA molecule to make two identical DNA molecules.…
Q: How many genes are in nuclear DNA?
A: Since the question do not specify any particular organism for the number of genes present in the…
Q: What is the full-form of DNA?
A: The living cells and organisms reproduce and transmit the characters from generation to generation.…
Q: What occurs when a base at a certain position in one strand of the DNA molecules is replaced by one…
A: There are four kinds of bases in DNA. These are Adenine, Thymine, Guanine, and Cytosine. The bases…
Q: If a double stranded DNA molecule is 20% thymine, what are the percentages of all other bases? 1.…
A:
Q: nd" of a DNA molecule actually mean?
A: Deoxyribonucleic acid can be defined as the molecule which is composed of two polynucleotide chains…
Q: What is known as cis-acting DNA elements ?
A: Biology terms are fundamental concepts and terms used in biology, which is the study of life and…
Q: Why Is DNA Twisted?
A: Introduction: DNA is a double helix having a sugar-phosphate backbone like a ladder and the base…
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- List the pyrimidine bases, the purine bases, and the base-pairing rules for DNA.Hydrolysis of the N-glycosyl bond between deoxyribose and a purine base in DNA creates an apurinic (AP) site. An AP site is more thermodynamically destabilizing to a DNA molecule than is a mismatched base pair. Examine the structure of an AP site. H₂N HN N O™ -O-P-O-CH₂ Guanine H₂N N HN Select the chemical consequences that could contribute to DNA instability at AP sites. H H 1₂0/ H fewer hydrogen bonds between the unpaired pyrimidine base and water disruption of the base-stacking interactions decreased interaction between the mutated DNA strand and histones increased ability of the deoxyribose ring to open without the attachment of the purine base H H Guanosine residue (in DNA) O™ -O-P-O-CH₂ O H H H O Apurinic residue H OH HHydrolysis of the N-glycosyl bond between deoxyribose and a purine base in DNA creates an apurinic (AP) site. An AP site is more thermodynamically destabilizing to a DNA molecule than is a mismatched base pair. Examine the structure of an AP site. HN H₂N N 0 Guanine -O-P-O-CH₂O. H₂N H HN H H H Hod H ofo -0- Guanosine residue (in DNA) -0-CH₂ H H H Apurinic residue H OH H
- Snake venom phosphodiesterase hydrolyzes nucleotides from the 3' end of any oligonucleotide and cleaves between the 3' hydroxyl of the ribose or deoxyribose and the phosphoryl group of the next nucleotide. It acts on single-stranded DNA or RNA and has no base specificity. Which nucleotide would be released first from the oligonucleotide shown below upon treatment with snake venom phosphodiesterase? choices a. Deoxythymidine 5'-monophosphate b. Deoxyguanosine 3'-monophosphate c. Deoxyguanosine 5'-monophosphate d. Guanosine 5'-monophosphate e. DeoxythymidineAn exonuclease is an enzyme that sequentially cleaves nucleotides from the end of a polynucleotide strand. Snake venom phosphodiesterase, which hydrolyzes nucleotides from the 3′ end of any oligonucleotidewith a free 3′-hydroxyl group, cleaves between the 3′ hydroxyl of the ribose or deoxyribose and the phosphoryl group of the next nucleotide. It acts on single-stranded DNA or RNA and has no base specificity. This enzyme was used in sequence determination experiments before the development of modern nucleic acid sequencing techniques. What are theproducts of partial digestion by snake venom phosphodiesterase of an oligonucleotide with the sequence (5′)GCGCCAUUGC(3′)—OH?A segment of a polypeptide chain is Arg-Gly-Ser-Phe-Val-Asp-Arg. It is encoded by the following segment of DNA: G G C T A G C T G C T T C C T T G G G G A C C G A T C G A C G A A G G A A C C C C T Template strand with its polarity: 3’ C C G A T C G A C G A A G G A A C C C C T 5’ - Coding strand with its polarity: 3’ G G C T A G C T G C T T C C T T G G G G A 5’ Please write out the mRNA sequence generated by the template strand to produce that polypeptide chain.
- (a) (b) (c) The figure shown below is the mechanism of a DNA nuclease. The DNA molecule is in blue while the protein residues are in black (M1 and M2 are metal ions, they are irrelevant to this question). 3' Base reaction. M² 5' 00 3' Glu 357 M¹ Draw the structure of the final DNA product for this reaction. Draw a square around the nucleophile and draw a circle around the leaving group in this Does this depict the reaction of an endonuclease or an exonuclease?What is the sequence of amino acids coded by the following sequence of nucleotides on a strand of DNA from the 5' to 3' end? A - T - C - G - C - T - A - C - G - A - A - T How many nucleotides are there?If one of the strands of DNA has the following sequence of bases running in the 5-S3' direction,5'-G-G-A-C-A-A-T-C-T-G-C-3' what base is closest to the 5'-end in the complementary strand?
- What are the complementary base pairs in DNA-RNA interactions? Answer format: Base 1(one letter symbol)-Base 2 (one letter symbol, or B-B*(hypothetical N-base) In the lengthening of a polynucleotide chain, which type of nucleotide subunit (name please not the formula) would bond to its 3’ end? How many 3’,5’-phosphodiester linkages are present in a tetranucleotide segment of a nucleic acid?If this nucleotide were found in a DNA polymer, the (X) group would be group would be A NH ₂ -0-CH₂, +] -0 B (X) (Y) and the (Y)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.