Nucleotides, in a polynucleotide sequence, contain phosphate groups bonded to the: C3 and C3' atoms O C5' and N9 atoms C2' and C5' atoms none of the above C3' and C5' atoms
Q: Collagen is a fibrous protein which involves interactions between multiple helixes. Ohas a highly…
A: Collagen is a structural protein found naturally in humans and animals. It constitutes upto 30% of…
Q: ...is always equal A, A + G... to T+ C. G C Purines Pyrimidines %3D [T]+[C]+[G]=100% #C Source of…
A: The Chargaff's rule says that in DNA there is always equality in quantity between the bases A and T…
Q: If a DNA molecule is found to contain 20% G, the % of purine nucleotides would be (a) 20% (b)…
A: Chargaff was a scientist who has worked out an experiment that reported that in a double-stranded…
Q: Which of the following is formed by the linking of two amino acids?a. a peptide bondb. a functional…
A: Biomolecules are the compounds that are necessary for different biological processes occurring in a…
Q: Breaking the hydrogen bonds that hold the bases together requires energy. Which of these two will be…
A: DNA is made up of nucleotides. Each nucleotide is made up of the deixyribose sugar, nitrogenous base…
Q: The ratio of _____ in DNA is 1:1 A) guanine to adenine B)…
A: Correct option is B adenine to thymine.
Q: Which of the following are part of a nucleic acid? Select all that apply. hydrogen connected to a…
A: Every living organisms contain nucleic acids in the form of DNA or RNA. That means nucleic acids…
Q: What types of bonds form the primary structure of nucleic acids? 0 hydrophobic peptide hydrogen…
A: The nucleic acids form the genetic material of an organism. The genetic information is stored in the…
Q: DNA molecules and the closely related RNA molecules are both made of O A. nucleotides O B. amino…
A: Nucleic acid is a long chainlike molecule composed of nucleotides found in cells of all living…
Q: ionic / covalent / hydrogen / electro ionic or none
A: The biological bonds or interactions present in living systems are of two types: Covalent and…
Q: Keratin and fibroin are examples of ……… proteins. These proteins have ……….. structure repeating a…
A: Introduction Fibrous proteins also known as scleroproteins are involved with structural functions…
Q: Fill in the following with the specific bond(s): Maintain(s)the helical structure of many…
A: Proteins are polymers of amino acids where the consecutive amino acids are attached by a special…
Q: The sugars in RNA and DNA are almost identical. The main difference is the presence or absence of…
A: DNA/RNA are polymers of nucleotides. A nucleotide consists of a nitrogenous base(A, T, G, C)…
Q: What chemical group is found at the 5' end of a *?polynucleotide chain
A: Polynucleotide: The Linear polymer composed of- the many nucleotide units.
Q: Which of the following linkages/bonds is NOT found in the primary structure of DNA and RNA…
A: Phosphoanhydride bonds are found in ATP molecules as it contains three phosphate group attached to…
Q: Which of these functional groups is involved in the building of a nucleic acid polymer from a…
A: A functional group is a group of atoms in a molecule with distinctive chemical properties,…
Q: Which one of the following statements about hydrogen bonds is FALSE? O hydrogen bonds are the…
A: Hydrogen bonds are intermolecular forces that act between two molecules. These bonds are formed when…
Q: All macromolecules are
A: Biological macromolecules can be defined as large molecules, which are important for life,…
Q: Describe the chemical features and functions of the 2 types of nucleic acids (DNA and RNA).
A:
Q: What has occurred to this molecule to cause it to change as shown in the diagram? Covalent bonds…
A: Double-stranded DNA is the genetic material present in most organisms. In a double-stranded DNA, two…
Q: Which of the following is/are the fundamental difference/s between RNA and DNA? O the sugars only O…
A: DNA stands for deoxyribonucleic acid, where as RNA stands for ribonucleic acid. These are the…
Q: guanine 1. only DNA uracil 2. only RNA ribose 3. both DNA and RNA forms a double helix phosphate…
A: DNA - Deoxyribonucleic acid RNA - Ribonucleic acid DNA - Only acts as genetic material RNA -…
Q: Which of the following use hydrogen bonds in the body: 1. Water (high specific heat, resist changes…
A: The chemical link in which a hydrogen atom is attracted to an electro-magnetic atom is known as a…
Q: Denaturation of proteins results in * Disruption of primary structure Breakdown of peptide bonds…
A: Proteins' capacity to fold into their precise functional forms is influenced by several factors such…
Q: Which type of nucleic acid is the following sequence, 5' GGGCCC 3'? DNA, RNA, Both DNA and RNA, or…
A: Introduction :- DNA (deoxyribonucleic) and polymer (ribonucleic acid) are two molecules that are…
Q: Across 1.) molecules with a hydrophobic portion and a hydrophilic portion 6 5.) a nucleotide that…
A: Crosswords are interesting form of teaching biology to the students.
Q: 3. Proteins: a. Function depends on the structure b. Monomers are the nucleotides c. Can be…
A: Introduction: Proteins are the fundamental building blocks of our body. They are large and complex…
Q: How many carbon atoms are there in the longest chain? Br seven O eight nine none of the above
A: The naming of an organic compound is primarily done on the basis of identification of its longest C…
Q: DNA and RNA are composed of several monomers bonded together. Where does this bonding occur between…
A: DNA is a long polymer having a backbone of repeating sugar (deoxyribose) and phosphate units, with a…
Q: The 3 parts of a nucleotide are O A. water, solute, solvent O B. sugar, phosphate,…
A: Biomolecules of molecular weight above 1000 Da is known as biomacromolecules. Carbohydrates,…
Q: Which one of the following statements is not true about nucleotides? nucleotides are the backbone of…
A: Molecular biology involves the study of composition, structure and interaction of cellular molecules…
Q: Which of the following types of bonds hold together nucleotides between DNA strands? Polar bonds O…
A: DNA is a double helical structure that contains sugar, phosphate and bases. There are different…
Q: Organic molecules are often assembled by polymerization. Which is an exception to this statement? a…
A: A polymerization is a chemical event in which relatively small molecules, known as monomers, produce…
Q: Which of the following distinguishes nucleic acids from the other three types of biological…
A: Nucleic acids are one of the four classes of the biochemical compounds. The other three classes of…
Q: What covalent bonds are linking nucleic acid monomers? The bonds between oxygen and carbon…
A: Nucleic acids are made up of pentose sugar, nitrogenous base, and phosphate. Nucleic acids are…
Q: Which of the following rows is true regarding transcription and translation? Select one: a.…
A: Transcription is a process of formation of mRNA from DNA with the help of enzyme RNA polymerase. The…
Q: ge Bonds formed by equal sharing of a pair of covalent electrons are called bonds because there is a…
A: A chemical bond is a lasting attraction between atoms , ions, or molecules which allows chemical…
Q: The bond linking monomers of both DNA and RNA is more appropriately called 3'-5'…
A: DNA and RNA are nucleic acids which are polymers of nucleotide monomers. Nucleotide monomer in DNA…
Q: A coiled peptide chain held in place by hydrogen bonding between peptide bonds in the same chain is…
A: Proteins are the biomolecules that are building blocks of the body. Proteins are made up of amino…
Q: The building blocks of nucleic acids are a. amino acids. b. fatty acids. c.…
A: Nucleic acids: These are mostly present in the living cells, and they consist of complex organic…
Q: What type of bonding is likely to occur between two water molecules or strands of DNA? Multiple…
A: Hydrogen bonds occur in inorganic molecules, like water, and organic molecules, like DNA. The two…
Q: Which of the following best describes the organization of nucleic acids from the smallest to the…
A: Nucleic acid is considered as long molecule composed of smaller molecule known as nucleotides. So ,…
Q: Which of the following is NOT found in RNA? A. thymine B. adenine C. uracil D. cytosine E.…
A: Introduction :- Ribonucleic acid (RNA) is a nucleic acid that has structural similarities to DNA and…
Q: Which of the following best describes a DNA molecule? O 1.contains ribose O 2. double helix 3. made…
A: DNA is genetic material which is made up of phosphate group, ribose sugar and nucleotide that is…
Q: Which of the following link together amino acid units? A) Glycosidic bonds B) Disulfide bonds C)…
A: Proteins are made up of amino acids, which are chemical molecules that bind to form proteins. The…
Q: What molecules make up each single peptide? Deoxynucleotides (dNTPs) Nucleotides (NTPs) Amino…
A: In sickle cell anemia, the shape of RBC becomes sickle-like due to mutation in the DNA. The DNA…
Q: Adenine and thymine form hydrogen bonds between them, while cytosine and guanine form bonds. O 32 O…
A: DNA stands for deoxyribonucleic Acid. It is the genetic material present in the cell.
Q: A coiled peptide chain held in place by hydrogen bonding between peptide bonds in the same chain is…
A: The secondary structure of proteins are produced as a result of local interlinkages between portions…
Q: There are four types of nucleotides in DNA of DNA nucleotides? O Adenine O Cytosine O Guanine
A: DNA stands for the deoxyribonucleic acid. It act as the genetic material in most of the organism. It…
Q: All proteins, 1 have quaternery structure made up of amino acids 3 are enzyme 4. made up of nucleic…
A: In nutritional biology, proteins represent one of the major macronutrients responsible for building…
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- question 24 DNA is a hereditary molecular that is composed of A Deoxyribose,phosphate, and nitrogen bases B Deoxyribose,a pentose, and nucleic acids C Sugar,proteins and thymine D Adenine, phosphate, and riboseQuestion 29 PCR is a technique that: produces information regarding the sequence of nitrogenous bases virtually eliminates operator error from DNA analysis All of these can produce many exact copies of segments of DNA provides a statistical analysis of the nitrogenous-base pairingsQUESTION 16 Peptidyl transferase activity (peptide bond enzyme activity) is associated with what site in the ribosome? E P A X
- Question 10. All of the following areparts of a nucleotide EXCEPT:A. a five-carbon sugar.B. a six-carbon sugar.C. a phosphate group.D. a nitrogenous base.QUESTION 10 Remdesivir is converted in vivo to CMP analog and then phosphorylated to CTP analog. a successful treatment for Ebola. There are more than 1 correct answers in the other choices. a potential chain terminator for the replication of RNA viral genomeQuestion: Some states are setting up archives of DNA profiles for all convicted criminals. Should this be extended to all citizens and become part of their basic medical records? Why or why not?
- Question 24 pts When we are vaccinated against SARS-CoV-2, what happens? (select all correct answers) Group of answer choices a) Our adaptive immune system becomes primed to recognize the SARS-CoV-2 virus. b) Our DNA becomes modified. c) We will permanently have viral proteins in our cells d) Our cells will make a partial or complete viral protein, which our immune system will recognize as foreign. e) Memory cells will be ready for a new infection.Question No.1 (1) A positive Tollen’s test classifies a monosaccharide as a reducing sugar. (2) The bond which links the two monosaccharides of a disaccharide together is a peptide bond. (3) Monosaccharides cannot be broken done into simpler units by hydrolysis reactions. Which of the following statements are true? Question No. 2 : Assuming that a strand of DNA has the following sequence: 5'-AACCGGTT-3' What is the sequence of complementary strand of DNA, from the 5' to the 3' direction?QUESTION NO. 1Targeting a protein to be degraded within proteasomes usually requires ubiquitin. In the function of ubiquitin all of the following are true except: A. ATP is required for activation of ubiquicin. B. a peptide bond forms between the carboxyl terminal of ubiquitin and an ε-amino group of a lysine . C. linkage of a protein to ubiquitin does not always mark it for degradation. D. the N-terminal amino acid is one determinant of selection for degradation. E. ATP is required by the enzyme that transfers the ubiquitin to the protein to be degraded QUESTION NO. 2Much of procollagen formation occurs in the endoplasmic reticulum and Golgi apparatus which requires signal peptide. All of the following statements about targeting a protein for the ER are true except. A. signal peptide usually has a positively charged N-terminus and a stretch of hydrophobic amino acids. B. signal peptide emerging from a free ribosome binds signal recognition…
- QUESTION NO.1which of the following are chemical characteristics of monosaccharides? A. They contain multiple hydroxyl groupsB. they contain an aldehyde or ketone group C. They contain a branching carbon backbone D. They contain a carbon-carbon double bond E. Every carbon in a monosaccharide is fully reduced F. Every carbon in a monosaccharide is a chiral centerQUESTION NO.2 glucose absorption is hindered by _________ deficiency A. Retinol B. Thiamine C. Potassium D. Sodium E. Ascorbic acid F. Calciferol QUESTION NO.3 phospholipids is made primarily from A. L-glycerol 1-phosphate B. L-glycerol 3-phosphate C. D-glycerol 3-phosphate D. -glycerol 1-phosphate E. sn-glycerol 1-phosphate F. sn-glycerol 3-phosphateQuestion 11. // Hint: Isoelectric focusing separates proteins based on their pI values, and can separate proteins that only differ by a net charge of ±1.±1. Recall that an amino acid residue with a negatively charged R group has a relatively low isoelectric point (pI) where it has zero net charge. Likewise, an amino acid residue with a positively charged R group has a relatively high isoelectric point (pI) where it has zero net charge. Order from Low pH to High pHQuestion 1.)Draw the main chain structure of a parallel beta sheet that has 4 amino acids in one strand and 5 in the other. Show all of the backbone atoms.Write R1, R2, R3, etc, instead of drawing side chains with the following exception: draw one proline in its entiretywith its side chain. You can put it anywhere in your sheet – I will find it. Add in all hydrogen bonds that stabilize this sheet using dashed lines.