In what ways are the structures of an α helix in a protein and thedouble helix of DNA similar, and in what ways are theydifferent?

Q: Describe the functions of the following proteins during DNA breaks and repair: (i) Ku70 (ii) Uracil…

A: The genetic stability of organisms is important for their survival. Only the presence of accurate…

Q: Which proteins help other polypeptides to fold into the right shape?

A: Proteins are composed of amino acids. They are linked together by peptide linkages. Proteins have…

Q: During DNA replication, cytosine always undergoes complementary base pairing with which of the…

A: A basic process in cell biology, DNA replication is essential to the correct transfer of genetic…

Q: What are packaging of DNA helix?

A: The packaging of DNA helix occurs with the help of histone proteins and incorporate it into the…

Q: Within a protein, certain amino acids are positively charged (e.g.,lysine and arginine), some are…

A: DNA or the deoxyribonucleic is the defined genetic material and it is made up of a base, deoxyribose…

Q: If there is no helix unwinding proteins and destabilizing proteins present, what would happen?

A: Helix unwinding is the major step for DNA replication . After this step the DNA priming step occur ,…

Q: What are the two major components of chromatin?

A: Chromatin is the thread-like structure that is again packed to formed to chromosome.

Q: Describe the secondary structures known as a-helix and B-pleated sheet.

A: Protein secondary structure consist of α-helix and β-pleated sheet.these secondary structure are…

Q: ) how many turns are in this alpha-helix? Should be an integer b) length in angstroms?

A: Alpha helix is the secondary structure of protein formed by Hydrogen bonds between side chains of…

Q: What is the difference between a phosphoester bondand a phosphodiester linkage?

A: The smallest particle of matter is called an atom. It is the very basic structural unit of any…

Q: Identify the number of amino acids per 360o turn of an alpha helix. Given this information, how many…

A: Proteins are composed of higher folding of linear chain amino acids adjoined via peptide linkages.…

Q: What is exact location of centrosome?

A: A centrosome is a cellular organelle found only in animal cells. It serves as the major…

Q: What is the difference between a simple and conjugated protein? Why is gelatin classified as a…

A: Proteins are large molecules made up of amino acid residues linked via a peptide bond. Amino Acids…

Q: what is centrosome?

A: Centrosome is an organelle found in eukryotes mainly animal cells, fungi, and algae but absent in…

Q: Which conformation of DNA – (i) totally double helix, (ii) minimally unwound or (iii) largely…

A: Just as a high temperature can denature protein, nucleic acids such as DNA and RNA can too be…

Q: The net electric charge on DNA and histines are calleds?

A: In the nucleus of each cell in higher organisms, the DNA molecule is packaged into thread-like…

Q: Does right-handed alpha-helix has the least restricted ϕ and ψ angles in polypeptides, compared with…

A: When amino acids are joined with one another, the C-N bond in the amide linkage causes rigidity…

Q: Alpha helices are a type of secondary structure in proteins. What is the length of a 23.0 kDa…

A: The alpha helix is a relatively common motif among the secondary structure of proteins - a secondary…

Q: a) What molecule is released after the nucleotides are linked via a phosphodiester bond? b) What do…

A: DNA (Deoxyribonucleic acid) is the genetic material in most of the organisms. It is a double…

Q: Where would you expect a polypeptide region Ridge and the amino acid valine, leucine, and isoleucine…

A: Amino acids are the building blocks of life. Proteins are long chains of amino acids that make up…

Q: The amino acid sequence for a short peptide is Tyr-Leu-Thr-Ala. What are the possible base sequences…

A: Gene expression is the process by which information from a gene is used for synthesizing of a…

Q: Examine the a-helix conformation. Are amino acid side chains arranged all inside the helix, all…

A: The secondary structure of the protein is a three-dimensional form of protein. The alpha helices and…

Q: Suppose that a DNA segment has the following nucleotide sequence: CTC ATA CGA TTC AAG TTA. Which of…

A: DNA( deoxyribonucleic acid) is a molecule composed of two polynucleotide chains that coil around…

Q: The base sequence of which type of RNA is responsiblefor determining the order of amino acids in a…

A: Translation is the mechanism by which ribosomes in the cytoplasm or endoplasmic reticulum synthesize…

Q: What is the length (in nm) of an alpha-helix containing 15 amino acid residues?

A: Proteins frequently contain an alpha-helix as a secondary structure. The polypeptide chain of the…

Q: How does a polypeptide fold to become a functioning protein?

A: Polypeptides are formed by amino acids. These amino acids are held with each other by peptide bonds.…

Q: In what important ways do the α helix and β sheet structures differ? (b) How are they similar?

A: Secondary structures of protein are local, regular structure of protein backbone which are…

Q: Draw the structure of a phosphodiester linkage.

A: DNA is deoxyribonucleic acid which contains deoxyribose sugar, sugar molecule and phosphate…

Q: List some of the possible combinations of α-helices and βsheets in supersecondary structures.

A: The helix and the pleated sheet are the two most important secondary structures. Hydrogen bonds…

Q: What forces contribute to the folding of a polypeptide? Can you explain the reasoning too?

A: The folding of a protein into its proper three dimensional structure is necessary for attaining the…

Q: (a) Write the complementary base sequence for the matching strand in the DNA section shown below:.…

A: Introduction According to Chargaff's rules, DNA from any cell of any organism should have a 1:1…

Q: what are alpha- helices? what do they look like

A: Each protein is made up of amino acids .Apart from these amino acids ,there are other substances…

Osmosis

In simple words, osmosis is the slow, gradual movement of a liquid through a membrane. But there are nuances to this process. For instance, there has to be an imbalance in the distribution of solute in the liquid on either side of the membrane, which has to be semipermeable. The liquid in the region with a lower solute concentration moves to the region with a higher concentration, thereby displacing the solution in the process. The objective is to equalize the concentration of molecules on both sides of the membrane; the displacement of liquid can be viewed as a byproduct of this equalization. Since there is no energy required to carry osmosis, it is considered a passive process.