Directions: Explore PDB Statistics using the data tables and answer the following questions: 1. Examine the Protein-only structures statistics - in which year did the number of proteins only structures entries annually exceed 1000 for the first time. 2. When was the first RNA-only structure entered into the PDB? 3. When was the first DNA-only structure entered into the PDB? 4. When were the first DNA-protein complex structures entered into to the PDB?
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- True of False 9) Gels are read from left to right. Answer: 10) Functional segments of genes (introns) code for proteins, molecules that carry out most cellular functions. Answer: 11) The human genome contains small, repetitive DNA elements that have become randomly inserted into it over millions of years. Answer:Please answer fast 1. The cell wall in bacteria is designed; a. to help resist changes in osmotic pressure b. to cause creation when it's lacking c. to maintain rigidity of shape d. all of these 2. What is a characteristic exhibited by an extrachromosomal piece of DNA? a. It can also exist as a plasmid b. It is a body found in the cytoplasm that directs protein synthesis c. It is a chromosome d. It is a molecule that carries the genetic message of the chromosomal DNA.Are both statements true? 1. Heterogeneous RNA is a term that refers to mRNA that has not been processed. 2. If the %A of a bacteria is 20%, the amount of guanine is 30%. Are both statements true? 1. If the %A of a bacteria is 30%, then the % (G+C) of the bacteria is 40% 2. The DNA is plectonemic because one of the strands go in 5' to 3' direction while the other go in the 3 to 5 direction
- Write 3 discussion questions about DNA Barcoding and Woolly mammoth diet mystery solved by DNA analysis?B. One strand of a section of DNA isolated from E. coli reads: (Assume no start codon is required as is true under certain test tube conditions). 5' GTAGCCTACCCATAGG 3' What is the complementary DNA strand? 2. Suppose mRNA is transcribed from this DNA using the complementary strand as a template. What will be the sequence of the mRNA? 3. What would be the corresponding anticodons? 4. What peptide would be made if translation started exactly at the 5' end of this mRNA?Match the key learning to the process or investigation statement. a. one-gene/one-enzyme hypothesis b. a protein has a particular sequence of amino acids f. triplet hypothesis g. translation c. messenger RNA hypothesis d. stop code e. the genetic code is redundant h. RNA i. Transcription j. Start code 53. Only nucleotide variations adding or removing three nucleotides produced a functional protein. 54. ribosomes in the cytoplasm organize MRNA and tRNA to combine amino acids into a polypeptide 55. nucleotides are made of ribose, phosphate and one of the nitrogenous bases: adenine, cytosine, guanine and uracil 56. Jacob and Monod proposed that DNA's genetic message was copied on complementary RNA.
- 1) name three types of RNA in a cell and their functions; 9. What is the role of RNA polymerase? To answer the question please: 2) draw a scheme of RNA synthesis; 3) name the enzymes required for RNA synthesis.1. What are nucleic acids?2. What comprise the structure of a nucleic acid?3. What are the functions of nucleic acids?4. What are the properties of nucleic acids?5. What is a nucleotide?6. If you hydrolize nucleotide, what will you obtain?7. How do we prepare an RNA sample from yeast?8. Whats the purpose of heating the yeast with 10% NaOH?9. How does the nucleic acid being purified from associated protein and other impurities?10. What is a nucleoprotein and where can you find it?11. How do we prepare sample of nucleoproteins for analysis?1. State the central dogma of molecular biology. 2. What are Chargaff's rules? 3. Identify the structure of the DNA molecule. 4. Describe transcription. 5. How may mRNA be modified before it leaves the nucleus? 6. What is the genetic code? What are codons? 7. Outline the steps of translation. 8. Define mutation and mutagen. 9. List three examples of mutagens. 10. Identify three types of chromosomal alterations.
- 1. how is information from the DNA passes on from one cell to another?2. How does the structure of a DNA molecule hellp account for the great variety of life that exists on earth?3. Does your mRNA model more closely resemble the DNA strand from which it was transcribed?4. Explain how the structure of DNA enables the molecule to be easily transcribed. Why it is important for genetic information?5. Why is RNA important to the cell?6. How does the mRNA molecule carry information from DNA?Analysis of a mRNA sample showed that 18% of the nitrogen-base molecules present were uracil molecules. The DNA molecule that was transcribed to form the mRNA sample would most likely contain Select one: a. 18% adenine b. 18% cytosine c. 32% thymine d. 32% adenine O O OUsing examples, explain how biology can be studied from a microscopic approach to a global approach.