4. Is there any situation in which DNA is made based on a RNA template? If there is, explain with an example how it occurs and state the enzyme involved?
Q: 2. If one strand of a DNA molecule has the base sequence5′-AGCATTAAGCT-3′, what is the base sequence…
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Q: what is The entire complement of DNA sequences in an organism.?
A: Genome
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Q: 8 How natural processes can change the information stored in DNA?
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A: Apologies. We only answer one question at a time. We will answer the first one as the exact one…
Q: When DNA replicates, how is it able to “unwind” its double helix?
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Q: 1
A: INTRODUCTION:- A mutation is any change in the nucleotide sequence of DNA.Some mutations affect…
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Q: C A T A C G C G T A с G
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Solved in 3 steps
- 2. What is the difference between the old and the new DNA strands? 3. What process invoives the production of MRNA using DNA as template? 1. In the Central Dogma, what process involves the production of a new DNA strand using an old DNA strand as blueprint or template? * How is replication different from transcription in terms of product? 5 What do you call each triplet code made up of three linearly arranged nucleotides in the MRNA? 6 What is the complement of the mRNA tripiet code in the tRNA? 7 In what way is tRNA different from MRNA? 8 In what ways are RNA and DNA similar? 9. In what ways are they different?1. What are the differences between DNA and RNA? 2. Which process involves copying of DNA information from template strand and produces mRNA strand that will be used for protein synthesis? 3. Based on the activity, what is the function of anticodon(TRNA) on protein synthesis? 4. What causes mutation? Is it always harmful? 5. Does a simple change on DNA sequence affect the resulting protein? Explain briefly.1. What is the nucleotide sequence of the complementary strand of the DNA molecule: 5’-AATGCGATCTTCAT-3’?2. What is the nucleotide sequence of the mRNA transcribed from the template DNA strand: 3’-GCTACAAAAAGTCCATAATCGC-5’? Indicate the 5’ and 3’ ends.3. If the mRNA sequence you obtained in question 2 were to be translated, what would be the sequence of amino acids? Indicate the N-terminal and C-terminal amino acids.
- 5. Consider the following DNA template strand:3’ GCA- AAA-CAA-ATA-GTG 5’Using the following sequence, identify:a. The base sequence in the DNA information strandb. Assuming that no introns are present, identify the codons present in the mRNA transcribed from the DNA template strandc. The anticodons in the tRNA that with interact with the mRNA codons in (b).d. The amino acids that will be carried by the tRNA (from c) molecules6. Similar to the class notes (Intro to Genetics), a segment of DNA (shown below) contains a promoter segment (the first 9 base pairs), a ribosome binding segment (the next 6 base pairs), and a segment that codes for protein synthesis which is started by the rest of the base pairs. ACTCCATTGAACCATTTCTATGATCCGCTAACG-... TGAGGTAACTTGGTAAAGATACTAGGCGATTGC-... A. When the DNA is induced to be copied to mRNA, the top strand is coding, meaning that the mRNA makes an identical copy of the lower strand (replacing T with U) The mRNA copy starts with the ribosome binding sequence. What is the sequence of the mRNA that will go to the ribosomes? B. What are the first 6 amino acids of the protein that are coded for by the mRNA? C. What would the amino acid sequence be if... i. a transition mutation occurred on the final G in the mRNA? ii. all of the G & C bases in the protein synthesis portion had transition mutations? iii. a point deletion mutation occurred in the ATA sequence (in the lower strand…10. What are the different structural organizations during packaging of DNA in a eukaryofic cell? What is meant by denaturation of DNA? Define hyperchromicity of denaturation? What are extracellular matrix proteins? List their functions. How has fluorescence microscopy contributed to one understanding of the nature of cytoskeleton? a. Nanoparticles and their applications b. Molecular chaperones What are heterotrimeric and monomeric G-proteins? Discuss their functions. Describe the effect of the following molecules on electron transport chain. a. Thermogenin b. Oligomycin c. Atractyloside d. BAL a. Briefly discuss Ramchandran plot. b. What is quaternary structure of proteins? Mention the role of various bond in its structure with the help of an example give its biochemical function. ‘What are liposomes? Discuss their role in medicine. . Differentiate between cerebroside and ganglioside and one disorder associated with each. o SRS
- 1. Determine what amino acid will be formed from the given DNA strand below: 3’ T A C A T G C C G A A T G C C 5’ 2. how will replication happen by mentioning the enzyme needed then transcribe to form mRNA. 3. Discuss what will happen to mRNA, then translate, mentioning the anticodon to be used 4. Look at the genetic code to know what amino acid will become part of the polypeptide chain.1. For each of the items below, give a brief description (indicate function for enzymes) and indicate in which process (replication, transcription, or translation) it is involved with. helicase Description/Funetion catalyzes the unwinding of DNA strands Process involved in replication 11. terminator 12. ribosome 13. amino-acyl RNA site 14. MRNA 15. tRNA 16. rRNA 17. Shine-Dalgarno sequence 18. start codon 19. Okazaki fragments 20. coding strand 21. peptidyl tRNA site7. In terms of organism, location and function, what are the major differences between nuclear and plasmid DNA? Briefly discuss what happens during transcription and translation.
- 8. What is happening to the DNA molecule in the figure? Also, discuss the types and functions of enzyme participating in this step.Discuss how enzymes proofread and repair errors in DNA.Topoisomerases (a) synthesize DNA (b) synthesize RNA primers (c) join Okazaki fragments (d) break and rejoin DNA to reduce torsional strain (e) prevent single DNA strands from joining to form a double helix
