Which of the following statements regarding the structure of DNA inside cells is NOT correct?   A. In a DNA duplex, the two strands of DNA contain reverse complementary base pairs.   B. The double helix is held together by phosphate bonds between the purines and pyrimidines.   C. In a DNA duplex, A pairs with T and G pairs with C.   D. The DNA is a double helix that contains a major groove and a minor groove.   E. The double helix is held together by two sugar-phosphate backbones on the outside of the double helix with paired purine and pyrimidine

Q: A circular DNA of 40 kb (40,000 bases) length is cut with a restriction enzyme whose precise…

A: The probability of a restriction enzyme to be found in a DNA is 4n, where n is the number of bases…

Q: A fundamental requirement for the functioning of genetic material is that it must be A. replicated…

A: Genetic material is the information present in all organisms that helps their cells to have…

Q: QUESTION 2 (select all that apply) Mutations can cause: A. an increase in offspring B. The final…

A: Mutation It is defined as the change in the sequence of DNA. It is resulted from the DNA copying…

Q: QUESTION 13 The corresponding strands of DNA are said to be? O a. Complimentary O b. Oppositely…

A: Watson and crick's model of DNA structure is the most widely accepted model. DNA is the long polymer…

Q: How do eukaryotic and prokaryotic RNA polymerases compare? Despite their added complexity,…

A: RNA polymerase is an enzyme which is responsible for the transcription process, that takes place in…

Q: Question 4 Which is/are NOT true of protein isofor (A They have variable amino acid B They have…

A: Proteins are composed of amino acids, which are bound together by peptide linkage. Amino acids…

Q: Question 1. Why is DNA replication called semiconservative?

A: DNA replication is the process in which dsDNA is copied to produce two identical DNA molecules.

Q: Question 3. It is not necessary to take precautions against shearing RNA during the purification…

A: RNA molecules are more prone to shearing than DNA due to their single stranded nature & smaller…

Q: Question 2: In which direction are polypeptides built by the ribosome? A. N' to C' B. C' to N'

A: Genetic code is read by the ribosome. mRNA that contains the genetic code is always read from 5’ to…

Q: Question 2 Which example is describing a "missense" mutation? OThe normal amino acid sequence of a…

A: A mutation is a change that occurs in our DNA sequence, either due to mistakes when the DNA is…

Q: Which of the following is NOT a correct pairing of the RNA type and its job O A. TRNA - in…

A: Introduction:- RNA (ribonucleic acid), complex compound of high molecular weight that functions in…

Q: recognition of the AUG initiation codon in an mRNA is TRUE?

A: In eukaryotes and Archaea, the start codon always codes for methionine, while in bacteria,…

Q: Question 1 What gives the DNA molecule a negative charge? (A deoxyribose (B) ribose c phosphate…

A: DNA or deoxyribonucleic acid is genetic material in living organisms that are responsible for…

Q: Question 8 Why is replication called semi-conservative? A not all leading strands are conserved B…

A: During DNA duplication, is the method to copy DNA stands when new cells are formed.

Q: Some point mutations cause a change in amino acid sequence but nonetheless may have little to no…

A: option f is correct . This is  because each group of amino acid belong to same category means . If…

Q: Question 9 Which of the following is the missing link between DNA and Proteins according to the…

A: Central dogma  Central dogma a pictorial representation of genetic material which tells us how a…

Q: Question 9: If the unmutated sequence in this scenario continued, AND contained multiple repeats of…

A: To determine the likelihood of the protein being found in the cytoplasm or associated with the lipid…

Q: Question 30 Which of the following does not require GTP hydrolysis? A all of the above require GTP…

A: Answer--- correct option is (A) All of the above require GTP hydrolysis

Q: What were the characteristics of Watson and Cricks first model? O The bases were facing th

A: Watson and Crick were the discoverer of DNA double helix model. However, their initial model were…

Q: What type of bond holds nucleotides together in a strand? O A. ionic O B. covalent O C. hydrogen O…

A: The nucleic acids are composed of organic molecules, called nucleotides. A nucleotide comprises a…

Q: Which of the following linkages/bonds is NOT found in the DNA molecule? A phosphodiester bond B…

A: The DNA molecule is held by a number of bonds:  1. Phospho-ester bond between the phosphate group…

Q: QUESTION 2 Which of the following statements about nucleic acid synthesizing enzymes (polymerases)…

A: A DNA polymerase is a member of a family of enzymes that catalyze the synthesis of DNA molecules…

Q: QUESTION 3 Is it possible to dissolve DNA in water? a. Only during cell division O b. No, DNA is…

A: Genomic DNA is the set of DNA which comprises of the genome of an organism. The genome is the…

Q: What would be the effect on the gene product of a particular gene that had two separate mutations in…

A: Gene mutations are of various types such as  Deletion  Insertion  Missense  Non sense  Silent…

Q: Question 6 Which of the following is true of the base content of dsDNA? A moles of thymine = moles…

A: There are four nitrogenous bases of DNA which are Adenine,  Guanine, thymine, and cytosine.  Guanine…

Q: QUESTION 20 Which of the following polymerases is found in the nucleolus? O A. DNA polymerase III O…

A: Polymerase enzyme is responsible for the process of polymerizing the monomers into polymers.

Q: QUESTION 22 Ribosomal RNA: O a. none of the above O b. acts only as a structural scaffold O C.…

A: The cell exhibits genetic material in the form of DNA as well as RNA.

Q: If the 3 proteins in the blue sample had MW's of [1] 87,000 Daltons, [2] 30,000 Daltons, [3] 15,000…

A: Gel electrophoresis is a technique used in molecular biology to separate biomolecules such as DNA,…

Q: tretch of DNA that is comprised of 500 nucleotides is a Gene

A: The DNA( Deoxyribonucleic acid) is made up of repeating units of the nucleotides, hence these are…

Q: Produce the complimentary DNA strand that would be matched with the provided strand T--A C--G C --G…

A: A complementary strand of DNA is constructed based on base complementarity.  Complementarity is…

Q: What is the most stable nitrogenous base pairing?

A: Base can be purines (adenine and guanine) two ring structure and pyrimidines (cytosine and thymine).…

Q: A linear piece of DNA is cut as follows: cut with Ecorl - get 1kb and 4 kb band Cut with Bamhl - get…

A: Ans- According to question For linear DNA – Upon Cutting by for Eco R1 it formed – 1kb and 4kb   =…

Q: QUESTION 3 Is it possible to dissolve DNA in water? a. Only during cell division b. No, DNA is…

A: A solution is a combination of two compounds or more. The solute is the soluble material, and the…

Q: Which mRNA would be made if the sequence of the DNA coding strand is GAC? O GAC O GTC O GUC O CUG

A: Amino acids are organic compounds with amino and carboxyl functional groups as well as a side chain…

Q: Question 7. You are studying two strands of DNA. They have exactly the same length, but the first…

A: The melting temperature highly depends on the G+C ratio in a strand. More the ratio of G+C high will…

Q: y the meaning of this statement: Genetic information is encoded in the DNA molecule.

A: Yes, Genetic information is encoded in the DNA molecule .It is also present in RNA molecule in some…

Q: Question 7: At third codon positions, approximately what proportion of muations are synonymous? A.…

A: Any change in the DNA sequence results in mutation. Synonymous mutation does not change the amino…

Q: In DNA one strand runs "upside-up" while the other one runs in the opposite direction, "upside-down"…

A: The deoxyribonucleic acid (DNA) is the genetic material that consists of all the information…

Q: QUESTION 2: What is the charge of a DNA molecule? Which aspect of its structure is responsible for…

A: Deoxyribonucleic acid, also known as DNA, is a molecule that contains the genetic blueprints…

Q: Which of the following would be classified as non-coding DNA? (mark all applicable answers) The…

A: Non coding DNA are sequences of DNA that do not code for proteins.

Q: Which of the following statements about how cells control the size of the poly-A tail on mRNA…

A: The mRNA or the messenger RNA is the pre-RNA which is derived from the DNA during transcription. The…