Why does isolated DNA appear stringy?
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C. Why does isolated DNA appear stringy?
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- a. What role does DNA replication play in DNA repair? b. What are the steps in the replication and repair of DNA?D. Bacterial chromosomes have many origins of replication, whereas eukaryotic chromosomes have a single origin of replication. E. The primers in DNA replication are made from RNAD. Using the DNA sequence above, write a new DNA sequence from 3’ to 5’ that incorporates a transversion leading to a missense mutation in the third amino acid. Bold or underline the nucleotide that has been changed and indicate the new amino acid
- A. Give five important features of the DNA molecule? B. How does the DNA structure reflect its functions?a. How many different DNA strands composed of100 nucleotides could possibly exist?b. How many different proteins composed of100 amino acids could possibly exist?B. Using the DNA sequence above, write a new DNA sequence from 3’ to 5’ that incorporates a transition leading to a silent mutation in the second amino acid. Bold or underline the nucleotide that has been changed
- Choose ALL the events listed below that occur in the cytoplasm of eukaryotes. Select one or more: a. b. tRNA anticodons match with mRNA codons C. d. mRNA nucleotides are fused into a long chain e. Double helix of DNA uncoils mRNA attaches to a ribosome Amino acids join in a chain f. Polypeptide is releasedMUTATION: Fill in the correct nucleotide base pairing and amino acid sequence of the mutated DNA -Answer/fill the blank circles provided in the image.C. Temination Step 2- Draw (DO NOT COPY-PASTE Images from the Internet) a picture of what is happening in each step in the box labeled "illustration." Label the following structures in each drawing where appropriate: DNA, MRNA, nucleus,cytoplasm, ribosome, rRNA, RNA, amino acid, polypeptide chain Step 3 - Describe (IN YOUR OWN WORDS) what is happening in each step in the box labeled "description." Be sure to include which process (transcription or translation) is being shown and where the process takes place (nucleus or ribosome). Transcription - Initiation Illustration Description A initiation is the beginning of transcription promoter RNA polymerase Transcription - Elongation 1 / 4 Q + Page 近
- A. Create the complimentary strand for the DNA strand below. Make sure to label the parts and direction of the strand. 5’-AACGGTCCAGTCCAAGTTACG-3’ 2. Below is a segment of DNA that is ready to be replicated. Outline the processes that the segment will go through during replication. Make sure to include the names of the enzymes that are involved. AATTGCCTGCTAGTCTCAG TTAACGGACGATCAGAGTC B. DNA: G T A C G C G T A T A C C G A C A T T C RNA: C A U G C G CAU A U G G C U G U A G Codons: AUG - CGC - AUA -UGG - CUG - UAA Anti-codons: UAC - GCG -UAU - ACC - GAC - AUU Amino acids: Met- Arg - Ile - Try - Leu Using the example above transcribe the following DNA strands into m-RNA and translate that strand into a polypeptide chain identifying the codons, anti-codons and amino acid sequence. 3. DNA: A T A C G A A A T C G C G A T C G C G G C G A T T C G G 4. DNA: T T T A C G G C C A T C A G G C A A T…(Optional) Describe the structure of DNA, discussing the DNA helix and the base pairs of DNA, the overall structure of a chromosome, the structure of a gene, an mRNA, a ribosome, and a protein. What are the relative sizes of each of these?Explain the DNA repair defects .