Homework Answers
d. Each cell's nucleus contains DNA
The cell nucleus contains the majority of the cell's genetic material in the form of multiple linear DNA molecules organized into structures called chromosomes. Each human cell contains roughly two meters of DNA.
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5. Which of the following statements about cancer cells is TRUE? a. The respiratory chain is...
5. Which of the following statements about cancer cells is TRUE? a. The respiratory chain is highly active to support fast growth and cell division. b. Cancer cells produce 2 lactate, 1NADH and 4 ATP from glucose. c. Many cancer cells produce less energy than ‘healthy’ body cells because their mitochondria have been lost during cell division. d. Cancer cells produce less energy than healthy body cells due to a malfunction of their TCA cycle. e. Cancer cells are unable...
Question 2 5 pts Which statements describe the DNA of eukaryotic cells? Select all that apply....
Question 2 5 pts Which statements describe the DNA of eukaryotic cells? Select all that apply. Hint: DNA Packaging e video Genome and Ploidy video Textbook chapter 10 section 10.1 Nuclear chromosomes are linear molecules. All of the DNA is located inside the nucleus. Chromosomes contain molecules of DNA and protein The structure located between the two chromosome arms is known as a telomere.
1.All cells in a human body undergo the process of meiosis. True False 2. Most cells...
1.All cells in a human body undergo the process of meiosis. True False 2. Most cells in the human body contain 46 chromosomes. True False 3. The chances that any two siblings will be genetically identical is astronomically small. True False 4. Each time protein synthesis occurs; all of the DNA of a cell is copied. True False RNA creation occurs in the nucleus of a cell; protein synthesis occurs on the ribosomes. True False 6. Tay-Sachs syndrome is a...
3. Which of these is/are true in DNA replication? 1. Helicase produces replications forks.
3. Which of these is/are true in DNA replication? 1. Helicase produces replications forks. 2. New histones are imported into the nucleus shortly after replication is complete. 3. DNA polymerase moves along a replication fork, making a new DNA molecules. 4. At the completion of replication, two molecules of DNA made from free nucleotides are formed. (A) 1 & 3 (B) 2 & 4 (C) 1, 2, 3, (D) 4 only; (E) all of the above _____ 24. Which of...
Choose the true statement(s) about plasmids. To be marked correct, you'll need to select all true...
Choose the true statement(s) about plasmids. To be marked correct, you'll need to select all true statements, as there may be more than one correct answer. Plasmid tend to be circular. Plasmids often contain genes that confer a survival advantage to a cell. Plasmids usually consist of single stranded DNA. Plasmids tend to exist outside of a cell's chromosome.
Which of the following statements regarding genes is false? a) Genes are located on chromosomes b)...
Which of the following statements regarding genes is false? a) Genes are located on chromosomes b) Genes consist of a long sequence of DNA c) In sexually reproducing species each cell contains a single copy of every gene d) Genes contain information for the production of a single protein e) none of the above
Question 4 9 pts Select all of the following statements that are true concerning the daughter...
Question 4 9 pts Select all of the following statements that are true concerning the daughter cells of meiosis: Hint: • Overview of Meiosis e video Compare Mitosis and Meiosis e video • Textbook chapter 11 section 11.1 The daughter cells are genetically identical to each other, but genetically different from the original parent cell. The daughter cells contain replicated chromosomes. Each daughter cell has half as many chromosomes as the original parent cell Each daughter cell only contains one...
1. Why do cancer cells spread throughout the body? Select all that apply (Think: how are...
1. Why do cancer cells spread throughout the body? Select all that apply (Think: how are cancer cells different than normal cells?) __________ a. They enrich nutrients at the original site b. They have loose adherence c. They travel through blood vessels d. They do not respond to contact inhibition e. They are fragile and damage easily f. They readily respond to signals for apoptosis 2. Benign cells have which characteristics? Select all that...
Which of the following statements regarding embryonic stem (ES) cells are true? A. They can only...
Which of the following statements regarding embryonic stem (ES) cells are true? A. They can only generate a very limited number of cell types. B. They can theoretically give rise to all types of cells in an organism. C. They are highly specialized. D. They are pluripotent. E. Harvesting them from human embryos raises ethical and political issues.
Which of the following statements is TRUE? A. Most proteins in the human mitochondrion are encoded...
Which of the following statements is TRUE? A. Most proteins in the human mitochondrion are encoded by nuclear genes. B. Heteroplasmy refers to the presence of different alleles in a single organelle. C. cpDNA evolves faster than nuclear DNA. D. One piece of evidence supporting the endosymbiotic theory is the extreme similarity between mitochondrial DNAs from different organisms. E. Plants contain chloroplasts, not mitochondria.
Question 2 5 pts Which statements describe the DNA of eukaryotic cells? Select all that apply. Hint: DNA Packaging e video Genome and Ploidy video Textbook chapter 10 section 10.1 Nuclear chromosomes are linear molecules. All of the DNA is located inside the nucleus. Chromosomes contain molecules of DNA and protein The structure located between the two chromosome arms is known as a telomere.
Question 4 9 pts Select all of the following statements that are true concerning the daughter cells of meiosis: Hint: • Overview of Meiosis e video Compare Mitosis and Meiosis e video • Textbook chapter 11 section 11.1 The daughter cells are genetically identical to each other, but genetically different from the original parent cell. The daughter cells contain replicated chromosomes. Each daughter cell has half as many chromosomes as the original parent cell Each daughter cell only contains one...
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