Calculate the number of phosphates, deoxyribose and ribose, and nitrogenous bases needed for a: DNA with 15 nucleotides.and RNA with 15 nucleotides
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Calculate the number of phosphates, deoxyribose and ribose, and nitrogenous bases
needed for a:
- DNA with 15
nucleotides .and - RNA with 15 nucleotides
Step by step
Solved in 2 steps
- How many kilobases of the DNA strand below will code for the protein product?State the properties of the WatsonCrick model of DNA in the following categories: a. number of polynucleotide chains b. polarity (running in same direction or opposite directions) c. bases on interior or exterior of molecule d. sugar/phosphate on interior or exterior of molecule e. which bases pair with which f. right- or left-handed helixCalculate the weight in grams of a double-helical DNA molecule stretching from the Earth to the Moon (320000 km). Assume that the DNA double helix weighs 1 x 10-18 g per 1000 nucleotide pairs and that each base pair extends 3.4 Å weight:
- if the guanine content of certain segment of double-stranded DNA is 22% what is the adenine content?Give a possible nucleotide sequence for the template strand of the gene that codes for this tripeptide. 0 H H 0 H OH H H ILL Note: Reference the Genetic code table for additional information. 3¹--5 DNA sequence XSnake 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. Deoxythymidine
- if this DNA has a molecular weight of 1.20 ×108 Dalton which contains a head in a about 200 nm long. Calculate the length of the DNA assuming the molecular weight of a nucleotide pair is 600 Dalton and assume that the DNA is a B-form and that there are 10 base pair per turn which makes is 34 Å per turn. ( 1nm = 10Å)The mass of RNA that has copied a segment of DNA is 63,000 units. The RNA mass that is placed in the ribosome represents 60% of it. Determine the mass of the protein encoded by the gene, if the mass of the aminoacid is 110 and the mass of the nucleotide is 300.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 H
- Amino acids have an average molar mass of 100 g/mol.How many bases on a single strand of DNA are needed to codefor a protein with a molar mass of 5x10^5g/mol?Draw the structure of the following nucleotide: adenosine 3'-monophosphate or guanosine 2-monophosphateDescribe the chemical differences between a ribonucleotide triphosphate and a deoxyribonucleotide monophosphate.