Homework Answers
21)
When an error occurs in DNA replication, the cell knows by a mechanism called proof-reading mechanism which is a property of DNA polymerase. If the polymerase detects that a wrong or incorrectly paired nucleotide has been added, the polymerase will remove and replace the incorrect nucleotide right away, before continuing with DNA synthesis.
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21) When an error occurs in DNA replication, how does the cell know which nucleotide on...
18) What is the function of DNA gyrase and Topoisomerases? (6 points) 19) List and describe...
18) What is the function of DNA gyrase and Topoisomerases? (6 points) 19) List and describe the 5 unique types of point mutations ? (10 points) 20) List, and clearly describe, the molecules that play a role in the initiation, elongation, and termination of DNA replication, RNA transcription, and protein translation? (50 points) 21) When an error occurs in DNA replication, how does the cell know which nucleotide on which strand should be corrected? (10 points) 22) During conjugation, the...
22) During conjugation, the bacterial chromosome is usually not exchanged. Describe a situation where the bacterial...
22) During conjugation, the bacterial chromosome is usually not exchanged. Describe a situation where the bacterial chromosome could be exchanged between microbes? (10 points) 23) List and fully describe how microbes display antibiotic resistance and how these mechanism originate from the genome? (15 points)
Name: 2. You cell cycle. Describe this process, including DNA replication (when is occurs and what is produced), The major portions of the cell cycle and what those portions are divided into. For...
Name: 2. You cell cycle. Describe this process, including DNA replication (when is occurs and what is produced), The major portions of the cell cycle and what those portions are divided into. For the cell division process you should use a chromosome number of 2N-4, instead of the real human chromosome number of 2N-46 have a broken leg and you realize that in order to heal your body needs to proceed through the
Name: 2. You cell cycle. Describe this...
Question 33 2 pts Which of the following statements about the process of DNA replication is...
Question 33 2 pts Which of the following statements about the process of DNA replication is true? It involves the enzyme DNA ligase, which corrects point mutations. It utilizes DNA polymerase, which catalyzes the reaction that adds a new nucleotide to the growing strand. The sequence on the new strand is always identical to one of the old parent strands. Adenine pairs with guanine, and cytosine pairs with thymine. Question 34 2 pts The DNA base...
Question 2a Deoxyribonucleic acid (DNA) is made up of nucleotides. Which part of the nucleotide stabilizes...
Question 2a Deoxyribonucleic acid (DNA) is made up of nucleotides. Which part of the nucleotide stabilizes the structure of DNA using weak van der Waals interactions (stacking) and using hydrogen bonds? (Note that covalent bonds are not included in that sentence.) a. the deoxyribose sugar b. the ribose sugar c. the phosphate d. the nitrogenous base e. the amino acid Question 2b This ability of the nitrogenous bases to exist in more than one form can lead to incorporation of...
multiple answers are possible! Which of the following statement about DNA is FALSE? When bacteriophage DNA...
multiple answers are possible!
Which of the following statement about DNA is FALSE? When bacteriophage DNA was shown to be the agent necessary for production of new phages, this was the early experiment demonstrating that DNA is the hereditary material. During DNA replication, two replication forks are formed to complete the synthesis of the entire chromosome in eukaryotes. During bacterial DNA replication process, replication forks move in opposite directions away from the origin of replication The molecular structure of DNA...
For the next group of questions consider a diploid cell from a eukaryotic organism with a...
For the next group of questions consider a diploid cell from a eukaryotic organism with a total of ten chromosomes. After one round of the cell cycle is complete you observe a total of four daughter cells. During this cell division occurred and the resulting daughter cells are. mitosis; haploid with ten total chromosomes each mitosis; diploid with five total chromosomes each meiosis; diploid with ten total chromosomes each meiosis; haploid with five total chromosomes each Before the cell divided,...
Question 22 5 pts Which statement does NOT correctly describe the bacterial chromosome? Hint: Binary Fissione...
Question 22 5 pts Which statement does NOT correctly describe the bacterial chromosome? Hint: Binary Fissione video • Textbook chapter 10 section 10.5 There is a single, circular chromosome The DNA is organized with associated histone proteins. There is usually only one starting point of replication The chromosome is attached to the plasma membrane. Genes that are involved in causing uncontrolled cell division are known as Hint: • Uncontrolled Cell Cycle u video • Textbook chapter 10 section 10.4 housekeeping...
DNA Replication occurs in which phase of the cell cycle? S phase G1 phase g2 phase...
DNA Replication occurs in which phase of the cell cycle? S phase G1 phase g2 phase Mitosis Prophase Crossing over occurs during mitosis I prophesy I mitosis II prophesy Mitosis I prophesy
AS Part A Which of the following events occurs during DNA replication? All methylation of the...
AS Part A Which of the following events occurs during DNA replication? All methylation of the DNA is lost at the first round of replication Methylated DNA is copied in the cytoplasm, and unmethylated DNA is copied in the nucleus Methylation of the DNA is maintained because DNA polymerase directly incorporates methylated nucleotides into the new strand opposite any methylated nucleotides in the template. Methylation of the DNA is maintained because methylation enzymes act at DNA sites where ane strand...
18) What is the function of DNA gyrase and Topoisomerases? (6 points) 19) List and describe the 5 unique types of point mutations ? (10 points) 20) List, and clearly describe, the molecules that play a role in the initiation, elongation, and termination of DNA replication, RNA transcription, and protein translation? (50 points) 21) When an error occurs in DNA replication, how does the cell know which nucleotide on which strand should be corrected? (10 points) 22) During conjugation, the...
22) During conjugation, the bacterial chromosome is usually not exchanged. Describe a situation where the bacterial chromosome could be exchanged between microbes? (10 points) 23) List and fully describe how microbes display antibiotic resistance and how these mechanism originate from the genome? (15 points)
Name: 2. You cell cycle. Describe this process, including DNA replication (when is occurs and what is produced), The major portions of the cell cycle and what those portions are divided into. For the cell division process you should use a chromosome number of 2N-4, instead of the real human chromosome number of 2N-46 have a broken leg and you realize that in order to heal your body needs to proceed through the
Name: 2. You cell cycle. Describe this...
multiple answers are possible!
Which of the following statement about DNA is FALSE? When bacteriophage DNA was shown to be the agent necessary for production of new phages, this was the early experiment demonstrating that DNA is the hereditary material. During DNA replication, two replication forks are formed to complete the synthesis of the entire chromosome in eukaryotes. During bacterial DNA replication process, replication forks move in opposite directions away from the origin of replication The molecular structure of DNA...
For the next group of questions consider a diploid cell from a eukaryotic organism with a total of ten chromosomes. After one round of the cell cycle is complete you observe a total of four daughter cells. During this cell division occurred and the resulting daughter cells are. mitosis; haploid with ten total chromosomes each mitosis; diploid with five total chromosomes each meiosis; diploid with ten total chromosomes each meiosis; haploid with five total chromosomes each Before the cell divided,...
Question 22 5 pts Which statement does NOT correctly describe the bacterial chromosome? Hint: Binary Fissione video • Textbook chapter 10 section 10.5 There is a single, circular chromosome The DNA is organized with associated histone proteins. There is usually only one starting point of replication The chromosome is attached to the plasma membrane. Genes that are involved in causing uncontrolled cell division are known as Hint: • Uncontrolled Cell Cycle u video • Textbook chapter 10 section 10.4 housekeeping...
DNA Replication occurs in which phase of the cell cycle? S phase G1 phase g2 phase Mitosis Prophase Crossing over occurs during mitosis I prophesy I mitosis II prophesy Mitosis I prophesy
AS Part A Which of the following events occurs during DNA replication? All methylation of the DNA is lost at the first round of replication Methylated DNA is copied in the cytoplasm, and unmethylated DNA is copied in the nucleus Methylation of the DNA is maintained because DNA polymerase directly incorporates methylated nucleotides into the new strand opposite any methylated nucleotides in the template. Methylation of the DNA is maintained because methylation enzymes act at DNA sites where ane strand...
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