Long stands of double helical DNA can fit into the nucleus of a single cell because DNA is specially packaged through a series of compaction events to fit easily within cell nuclei. Even though the length of DNA per cell is about 100‚000 times as long as the cell itself‚ it only takes up only about 10 percent of the cell’s volume. The DNA molecule‚ in order to condense‚ wraps itself around groups of histone proteins‚ and then the chromatin folds back on it‚ nucelosomes pack together to create a compact
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Chapter 1 1. A Chapter 2 1. Which event brought Queen Isabella to the throne in 1474? a. The death of her brother Henry 2. How did a sea route to Asia impact Europe? a. The route allowed merchants to charge lower prices for imported Eastern goods 3. The government of which country sponsored Christopher Columbus’s 1492 exploration? a. Spain 4. How did Ferdinand and Isabella react to Columbus’s first voyage? a. They believed Spain could challenge Portuguese dominance of the seas 5. The Treaty of Tordesillas
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In order to accurately answer this question you must be familiar with the basic properties of water‚ in which case the correct answer is obvious. Swamp-living plants will produce the following fossil fuel(s): * A. coal B. natural gas C. oil D. A and B E. B and C This is a basic content-oriented question‚ with a twist. You are offered a variety of combinations within which to fit the correct answer. The bottom line is that you will need more than
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1st Long Examination I. Multiple Choice. Choose the best answer. Write the letter of your choice on your answer sheet. D 1. DNA is unique among molecules in that it can a. form multipolymer complex c. withstand very high temperatures b. come apart and re-form d. replicate itself B.2. Which of the following cellular organelles breaks down complex macromolecules‚ such as polysaccharides and proteins? a. Golgi complex b. lysosome c. rough ER d. mitochondrion A.3. The most abundant
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Week 7 Quiz 6 Return to Assessment List Part 1 of 1 -20.0/ 20.0 Points 2.0/ 2.0 Points A mental disorder is defined as ________________. A.The inability to distinguish right from wrong B.Behavior that violates cultural standards C.Behavior or emotional states that cause an individual distress‚ are self-destructive‚ or endanger D.Behavior that deviates strongly from the norm and prevents a person from functioning normally. Answer Key: C 2.0/ 2.0 Points Mary goes to the emergency room
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QUESTIONS AND ANSWERS SECTION A: SIMILARITIES‚ DIFFERENCES‚ AND DEFINITIONS Gametes are mature haploid reproductive cells that unite to form a zygote that develops into a new individual. Gametes are also called sex cells. An egg or ovum is a haploid female reproductive cell or gamete whereas a sperm is a male haploid reproductive cell. A zygote is the initial cell that is formed as a result of the union of a male and a female gamete by means of sexual reproduction. The two haploid cells merge
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substance); * can be observed (via change in color‚ smell‚ or (from the release of energy) in the form of bubbles or a change in light; * ------------------------------------------------- is irreversible (because a new substance was formed). QUIZ ANSWERS What is the term for the abbreviation for the name of a chemical compound that indicates the number of atoms of each element? c. chemical formula What is the term for matter having an indefinite composition and variable properties
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Suggested answers to Practical Workbook for SBA Ch 1 Introducing biology Practical 1.1 Design an investigation of the effect of fresh pineapple on the setting of jelly Propose a hypothesis (p. 1-2) It is the fresh pineapple that causes the jelly to remain in liquid form. Design and perform an experiment (p. 1-2) 1 (Answer varies with Ss. The recommended quantity of jelly powder and water is stated on the packet of the jelly powder. Jelly will not set if it is too dilute.)
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Write a 350 to 700 word summary describing if the collection of DNA without consent unreasonably intrudes on an arrestees’ expectation of privacy. How long can police keep your DNA on file after an arrest or conviction? Can law enforcement use a person’s DNA to match against other crimes unrelated to the one they initially obtained it for? Provide examples and or reasons. The collection of DNA without consent can unreasonably be seen as intruding on someone who has been not been arrested however
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DNA DNA‚ or Deoxyribonucleic Acid‚ is described‚ in Encarta Encyclopedia as a genetic material of all cellular organisms and most viruses. DNA carries the information needed to direct protein synthesis and replication. Protein synthesis is the production of the proteins needed by the cell or virus for its activities and development. Replication is the process by which DNA copies itself for each descendant cell or virus‚ passing on the information needed for protein synthesis. In most cellular
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