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- need help. For both question 20. The proofreading ability of DNA polymerase which depends on its native exonuclease activity occurs in the: A. 5' to 3' direction B. 3 to 5' direction 21. Direct repair mechanisms in plants involve the enzyme: A Photolvase B. Convertese C. Hydrolase D. PhosphodiesteraseQuestion 36 Nonhomologous end-joining (NHEJ) repairs DNA lesions that affect both strands Question 36 options: True False Question 37 A DNA variation in which a single nucleotide is changed is called: Question 37 options: Indel Structural variant Single nucleotide polymorphism Copy variantQuestion. Rewrite the following sentences after correction. (Subject: Biotechnology) The variation in the length of tandem repeat of microsatellite DNA has serious translational affects as this is due to its coding region. Correct: If one parent has sickle cell anemia and other has carrier genotype than there is 25 % chance that any offspring is carrier. Correct: Sickled WBC block the flow of blood and Calcium as they stick together and caused by frame shift mutation. Correct: The N1303K mutation in the CFTR gene of CF patients is autosomal dominant disorder due to insertion of asparagine at 1303. Correct: If a person RBCs have B surface antigen and it will clump with antigen B such clumping indicates Blood type B. Correct: Indirect ELISA can detect polygenic gene expression. Correct:
- During proofreading, which of the following enzymes reads the DNA? primase topoisomerase DNA pol helicaseQuestion:- All the necessary ingredients for the Polymerase Chain Reaction (PCR) are mixed together in a PCR tube and placed in the thermal cycler. The DNA polymerase is from Thermus aquaticus,the template is human DNA, and the primer is complementary to the gene for a human protein. What would result from amplification? Group of answer choices a.a mixture of human DNA, RNA, and protein b.human DNA c.human protein d.T. aquaticus DNA e.a mixture of human and T. aquaticus DNARegular DNA replication Question 3 options: Occurs through the addition of nucleotides to the end of the parental DNA molecule Results in the formation of four new DNA strands Uses one RNA molecule as a template for the creation of a new strand Begins when two DNA molecules join together to exchange segments Not listed
- CHOICES: Isoniazid Rifampicin Ethambutol None of the Choices Binds to bacterial DNA gyrase & topoisomeraseQuestion:- True or false: In general, genes are more densely concentrated in the genomes of prokaryotes than in eukaryotes. Group of answer choices True FalseInstructions -Answer thr Questions properly. MUTATION: Fill in the correct nucleotide base pairing and amino acid sequence of the mutated DNA "MUTATED DNA" (SEE IMAGE) a. What is the 3’-5’ DNA sequence? (FORMAT: XXX-XXX-XXX-XXX-XXX) b. What is the mRNA sequence? (FORMAT: XXX-XXX-XXX-XXX-XXX) c. What is the tRNA sequence? (FORMAT: XXX-XXX-XXX-XXX-XXX) d. What is the amino acid sequence? (FORMAT: XXX-XXX-XXX-XXX-XXX) e. What is the most convincing type of mutation had occurred? - Substitution - Missense (Frameshift resulting Missense; Frameshift resulting Nonsense; Substitution – Silent; Substitution – Missense; Substitution – Nonsense)
- Need to understand how to do this: create the complementary strand of DNA to the DNA strand provided below: 1. ATAGGTCACCGTAA 2. TCCAGAJustify why the absorption of UV light by double-stranded DNA rises when the DNA is denatured (the hyperchromic effect).a) what si the nucleotide at the 5 prime end of the picture? b) what si the DNA sequence from 5 prime to 3 prime pls help, urgently required, no explanation needed