BIOLOGY CONNECT ACCESS CODE
3rd Edition
ISBN: 9781259758324
Author: Hoefnagels
Publisher: MCG
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Chapter 11.1, Problem
What is DNA technology?
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Chapter 11 Solutions
BIOLOGY CONNECT ACCESS CODE
Ch. 11.1 - What is DNA technology?Ch. 11.1 - In what fields is DNA technology useful?Ch. 11.2 - What are some uses for transgenic organisms?Ch. 11.2 - What are the steps in producing a transgenic...Ch. 11.2 - How do tagged nucleotides participate in first...Ch. 11.2 - What is the function of 98.5 of the human genome...Ch. 11.2 - How does PCR work, and why is it useful?Ch. 11.2 - How are short tandem repeats used in DNA...Ch. 11.2 - Why do investigators sometimes analyze...Ch. 11.3 - Describe the differences among embryonic, adult,...
Ch. 11.3 - What are the potential medical benefits of stem...Ch. 11.3 - Summarize the steps scientists use to clone an...Ch. 11.3 - Why is the technique used to clone mammals called...Ch. 11.4 - Explain how and why a researcher might use a DNA...Ch. 11.4 - Compare and contrast preimplantation genetic...Ch. 11.4 - Prob. 3MCCh. 11.4 - Describe how CRISPR-Cas9 targets a specific gene...Ch. 11.4 - Prob. 5MCCh. 11 - If a restriction enzyme cuts between G and A...Ch. 11 - Which of the following is not a reason that...Ch. 11 - The function of electrophoresis is to a. break a...Ch. 11 - Why is PCR useful? a. Because it replicates all...Ch. 11 - Suppose an investigator at the scene of a murder...Ch. 11 - What is an induced pluripotent stem cell? a. A...Ch. 11 - Dolly the sheep was the first clone of an adult...Ch. 11 - Prob. 8MCQCh. 11 - Preimplantation genetic diagnosis would be least...Ch. 11 - What is the role of a virus in gene therapy? a. It...Ch. 11 - What techniques might researchers use to produce...Ch. 11 - Transgenic crops often require fewer herbicides...Ch. 11 - Describe why sorting DNA fragments by size is...Ch. 11 - Explain how the ingredients in a PCR reaction tube...Ch. 11 - Prob. 5WIOCh. 11 - Why are entire genomes not used for DNA profiling?Ch. 11 - Prob. 7WIOCh. 11 - Mature neurons in the brain do not replicate. Why...Ch. 11 - Unneeded genes in an adult animal cell are...Ch. 11 - Scientists are interested in cloning an extinct...Ch. 11 - Prob. 11WIOCh. 11 - Prob. 12WIOCh. 11 - Use the Internet to research an application of...Ch. 11 - Prob. 14WIOCh. 11 - Review Burning Question 11.11, which describes the...Ch. 11 - Review the Survey the Landscape figure in the...Ch. 11 - How does PCR related to DNA profiling and...Ch. 11 - Add the terms restriction enzyme, plasmid, virus,...Ch. 11 - How is a patient who receives gene therapy similar...
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- If using animals in medical experiments could save human lives, is it ethical to do so? In your answer, apply at least one ethical theory in support of your position.arrow_forwardYou aim to test the hypothesis that the Tbx4 and Tbx5 genes inhibit each other's expression during limb development. With access to chicken embryos and viruses capable of overexpressing Tbx4 and Tbx5, describe an experiment to investigate whether these genes suppress each other's expression in the limb buds. What results would you expect if they do repress each other? What results would you expect if they do not repress each other?arrow_forwardYou decide to delete Fgf4 and Fgf8 specifically in the limb bud. Explain why you would not knock out these genes in the entire embryo instead.arrow_forward
- You implant an FGF10-coated bead into the anterior flank of a chicken embryo, directly below the level of the wing bud. What is the phenotype of the resulting ectopic limb? Briefly describe the expected expression domains of 1) Shh, 2) Tbx4, and 3) Tbx5 in the resulting ectopic limb bud.arrow_forwardDesign a grafting experiment to determine if limb mesoderm determines forelimb / hindlimb identity. Include the experiment, a control, and an interpretation in your answer.arrow_forwardThe Snapdragon is a popular garden flower that comes in a variety of colours, including red, yellow, and orange. The genotypes and associated phenotypes for some of these flowers are as follows: aabb: yellow AABB, AABb, AaBb, and AaBB: red AAbb and Aabb: orange aaBB: yellow aaBb: ? Based on this information, what would the phenotype of a Snapdragon with the genotype aaBb be and why? Question 21 options: orange because A is epistatic to B yellow because A is epistatic to B red because B is epistatic to A orange because B is epistatic to A red because A is epistatic to B yellow because B is epistatic to Aarrow_forward
- A sample of blood was taken from the above individual and prepared for haemoglobin analysis. However, when water was added the cells did not lyse and looked normal in size and shape. The technician suspected that they had may have made an error in the protocol – what is the most likely explanation? The cell membranes are more resistant than normal. An isotonic solution had been added instead of water. A solution of 0.1 M NaCl had been added instead of water. Not enough water had been added to the red blood cell pellet. The man had sickle-cell anaemia.arrow_forwardA sample of blood was taken from the above individual and prepared for haemoglobin analysis. However, when water was added the cells did not lyse and looked normal in size and shape. The technician suspected that they had may have made an error in the protocol – what is the most likely explanation? The cell membranes are more resistant than normal. An isotonic solution had been added instead of water. A solution of 0.1 M NaCl had been added instead of water. Not enough water had been added to the red blood cell pellet. The man had sickle-cell anaemia.arrow_forwardWith reference to their absorption spectra of the oxy haemoglobin intact line) and deoxyhemoglobin (broken line) shown in Figure 2 below, how would you best explain the reason why there are differences in the major peaks of the spectra? Figure 2. SPECTRA OF OXYGENATED AND DEOXYGENATED HAEMOGLOBIN OBTAINED WITH THE RECORDING SPECTROPHOTOMETER 1.4 Abs < 0.8 06 0.4 400 420 440 460 480 500 520 540 560 580 600 nm 1. The difference in the spectra is due to a pH change in the deoxy-haemoglobin due to uptake of CO2- 2. There is more oxygen-carrying plasma in the oxy-haemoglobin sample. 3. The change in Mr due to oxygen binding causes the oxy haemoglobin to have a higher absorbance peak. 4. Oxy-haemoglobin is contaminated by carbaminohemoglobin, and therefore has a higher absorbance peak 5. Oxy-haemoglobin absorbs more light of blue wavelengths and less of red wavelengths than deoxy-haemoglobinarrow_forward
- With reference to their absorption spectra of the oxy haemoglobin intact line) and deoxyhemoglobin (broken line) shown in Figure 2 below, how would you best explain the reason why there are differences in the major peaks of the spectra? Figure 2. SPECTRA OF OXYGENATED AND DEOXYGENATED HAEMOGLOBIN OBTAINED WITH THE RECORDING SPECTROPHOTOMETER 1.4 Abs < 0.8 06 0.4 400 420 440 460 480 500 520 540 560 580 600 nm 1. The difference in the spectra is due to a pH change in the deoxy-haemoglobin due to uptake of CO2- 2. There is more oxygen-carrying plasma in the oxy-haemoglobin sample. 3. The change in Mr due to oxygen binding causes the oxy haemoglobin to have a higher absorbance peak. 4. Oxy-haemoglobin is contaminated by carbaminohemoglobin, and therefore has a higher absorbance peak 5. Oxy-haemoglobin absorbs more light of blue wavelengths and less of red wavelengths than deoxy-haemoglobinarrow_forwardWhich ONE of the following is FALSE regarding haemoglobin? It has two alpha subunits and two beta subunits. The subunits are joined by disulphide bonds. Each subunit covalently binds a haem group. Conformational change in one subunit can be transmitted to another. There are many variant ("mutant") forms of haemoglobin that are not harmful.arrow_forwardWhich ONE of the following is FALSE regarding haemoglobin? It has two alpha subunits and two beta subunits. The subunits are joined by disulphide bonds. Each subunit covalently binds a haem group. Conformational change in one subunit can be transmitted to another. There are many variant ("mutant") forms of haemoglobin that are not harmful.arrow_forward
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