Homework Answers
Ans- 5 the following statements are true for the Saccharomyces cerevisiae yeast , except
yeast mating type a- cell responds to a factor, alpha cell responds to alpha factor.
This is not true because yeast mating type a cell responds to factor alpha, and vice versa. Yeast reproduces sexually. To achieve this, yeast releases a signalling pathway so to attract the other mate. This process is known as mating factor pathway.In this haploid yeast cells are attracted to the other cells which are having opposite mating factor.So any haploid cell containing a factor will respond to alpha cell and vice versa.
Ans- 6 Diploid Saccharomyces cerevisiae yeast cells contain the following alleles at the MAT locus-
alleles a and alpha.
Haploid cells of yeast contains only of the alleles i.e either a or alpha and shows the following characteristics as well. But in diploid yeast cells, both alleles are present on MAT locus but they are not homologous to each other. This means that any of these two genes are not present at the same loci but in same region that is being stated as MAT locus. When a diploid cells undergoes division and forms a haploid cell ,only one of the allelle is being transferred to the daughter yeast cells.
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QUESTION 5 The following statements are true for the Saccharomyces cerevisiae yeast, except Yeast mating type...
Question 17. Saccharomyces cerevisiae (also called budding yeast or baker's yeast) normally makes LARGE colonies on...
Question 17. Saccharomyces cerevisiae (also called budding yeast or baker's yeast) normally makes LARGE colonies on the Petri dish. The fungus can exist as either a haploid or as a diploid. As a geneticist, you decide to isolate haploid mutants with altered size of colonies. You collect 6 such haploid mutants, which you arbitrarily name M1, M2, M3, M4, M5, and M6. To determine how many genes are represented by your mutants, you do a series of crosses resulting in...
Question 17. Saccharomyces cerevisiae (also called budding yeast or baker's yeast) normally makes LARGE colonies on...
Question 17. Saccharomyces cerevisiae (also called budding yeast or baker's yeast) normally makes LARGE colonies on the Petri dish. The fungus can exist as either a haploid or as a diploid. As a geneticist, you decide to isolate haploid mutants with altered size of colonies. You collect 6 such haploid mutants, which you arbitrarily name M1, M2, M3, M4, M5, and M6. To determine how many genes are represented by your mutants, you do a series of crosses resulting in...
D Question 2 13 pts A culture of yeast that requires uracil for growth (ura3 )...
D Question 2 13 pts A culture of yeast that requires uracil for growth (ura3 ) was treated with a mutagen, and two mutant colonies, X and Y, were isolated. Mating type a cells of mutant X were mated with mating type a cells of mutant Y to form diploid cells. The parental (ura3), X, Y, and diploid cells were all streaked onto agar plates containing uracil and incubated at 23 "C or 32 °C. Cell growth was monitored by...
Question 10-12 10. During the mating process, yeast cells respond to pheromones secreted by other yeast...
Question 10-12
10. During the mating process, yeast cells respond to pheromones secreted by other yeast cells. These pheromones bind GPCRs on the surface of the responding cell and lead to the activation of proteins inside the cell. When a wild-type yeast cell senses the pheromone, its physiology changes in preparation for mating: the cell stops growing until it finds a mating partner. If yeast cells do not undergo the appropriate response after sensing a pheromone, they are considered sterile....
Which of the following statements is/are true about meiosis? Select all that apply. Meiosis produces growth...
Which of the following statements is/are true about meiosis? Select all that apply. Meiosis produces growth in humans. Meiosis produces gametes Meiosis produces four haploid cells Meiosis produces two diploid cells. Melosis produces nonidentical cells. The daughter cells of meiosis have half as many chromosomes as the parent cell
D Question 10 Which of the following cell type and cell function statements is NOT true:...
D Question 10 Which of the following cell type and cell function statements is NOT true: O a) Neutrophils function includes phagocytosis b) mast cells bind IgE in hypersensitivity reactions O deffector T helper cells regulate immune function by decreasing immune activity e) memory T helper cell retain the antigen affinity and provide recognition in secondary exposure O d) plasma cells provide antibody secretion Previous No new data to save. Last a
12. All of the following statements concerning voltaic cells are true EXCEPT a) a salt bridge...
12. All of the following statements concerning voltaic cells are true EXCEPT a) a salt bridge allows cations and anions to move between the half-cells. b) electrons flow from the anode to the cathode in the external circuit. c) oxidation occurs at the cathode. d) a voltaic cell can be used as a source of energy, e) a voltaic cell consists of two-half cells. Answer:
All of the following statements concerning voltaic cells are true EXCEPT O a voltaic cell consists...
All of the following statements concerning voltaic cells are true EXCEPT O a voltaic cell consists of two-half cells. electrons flow from the anode to the cathode. reduction occurs at the cathode. a salt bridge allows only cations to move between the half-cells. in the Zn2+/Zn-Cu/Cu2+ voltaic cell, Zn metal is the anode.
357 All of the following are true statements EXCEPT (select the false statement): A. People with...
357 All of the following are true statements EXCEPT (select the false statement): A. People with type AB blood are considered universal recipients because their blood does not contain either anti-A or anti-B antibodies B. In adults, the only site of red blood cell production, and the primary site of white blood cell formation, is the red bone marrow C. Increased numbers of reticulocytes occur on a peripheral blood sample after donating a unit of blood. D. Polycythemia is a...
All of the following statements are TRUE about biomes EXCEPT: Question 13 options: a) Aquatic biomes...
All of the following statements are TRUE about biomes EXCEPT: Question 13 options: a) Aquatic biomes cover three quarters of the earth's surface. b) The tropics contain the least biodiversity of all of the world's biomes. c) Biomes are determined based on precipitation and temperature.
Question 17. Saccharomyces cerevisiae (also called budding yeast or baker's yeast) normally makes LARGE colonies on the Petri dish. The fungus can exist as either a haploid or as a diploid. As a geneticist, you decide to isolate haploid mutants with altered size of colonies. You collect 6 such haploid mutants, which you arbitrarily name M1, M2, M3, M4, M5, and M6. To determine how many genes are represented by your mutants, you do a series of crosses resulting in...
Question 17. Saccharomyces cerevisiae (also called budding yeast or baker's yeast) normally makes LARGE colonies on the Petri dish. The fungus can exist as either a haploid or as a diploid. As a geneticist, you decide to isolate haploid mutants with altered size of colonies. You collect 6 such haploid mutants, which you arbitrarily name M1, M2, M3, M4, M5, and M6. To determine how many genes are represented by your mutants, you do a series of crosses resulting in...
D Question 2 13 pts A culture of yeast that requires uracil for growth (ura3 ) was treated with a mutagen, and two mutant colonies, X and Y, were isolated. Mating type a cells of mutant X were mated with mating type a cells of mutant Y to form diploid cells. The parental (ura3), X, Y, and diploid cells were all streaked onto agar plates containing uracil and incubated at 23 "C or 32 °C. Cell growth was monitored by...
Question 10-12
10. During the mating process, yeast cells respond to pheromones secreted by other yeast cells. These pheromones bind GPCRs on the surface of the responding cell and lead to the activation of proteins inside the cell. When a wild-type yeast cell senses the pheromone, its physiology changes in preparation for mating: the cell stops growing until it finds a mating partner. If yeast cells do not undergo the appropriate response after sensing a pheromone, they are considered sterile....
Which of the following statements is/are true about meiosis? Select all that apply. Meiosis produces growth in humans. Meiosis produces gametes Meiosis produces four haploid cells Meiosis produces two diploid cells. Melosis produces nonidentical cells. The daughter cells of meiosis have half as many chromosomes as the parent cell
D Question 10 Which of the following cell type and cell function statements is NOT true: O a) Neutrophils function includes phagocytosis b) mast cells bind IgE in hypersensitivity reactions O deffector T helper cells regulate immune function by decreasing immune activity e) memory T helper cell retain the antigen affinity and provide recognition in secondary exposure O d) plasma cells provide antibody secretion Previous No new data to save. Last a
12. All of the following statements concerning voltaic cells are true EXCEPT a) a salt bridge allows cations and anions to move between the half-cells. b) electrons flow from the anode to the cathode in the external circuit. c) oxidation occurs at the cathode. d) a voltaic cell can be used as a source of energy, e) a voltaic cell consists of two-half cells. Answer:
All of the following statements concerning voltaic cells are true EXCEPT O a voltaic cell consists of two-half cells. electrons flow from the anode to the cathode. reduction occurs at the cathode. a salt bridge allows only cations to move between the half-cells. in the Zn2+/Zn-Cu/Cu2+ voltaic cell, Zn metal is the anode.
357 All of the following are true statements EXCEPT (select the false statement): A. People with type AB blood are considered universal recipients because their blood does not contain either anti-A or anti-B antibodies B. In adults, the only site of red blood cell production, and the primary site of white blood cell formation, is the red bone marrow C. Increased numbers of reticulocytes occur on a peripheral blood sample after donating a unit of blood. D. Polycythemia is a...
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