211 Biol Quiz 3A 25 Points October 29, 2007 I. Matching 1. ____C__ chromosomes that are not sex chromosomes are called this 2. __J____ in animals, gametes are produced using this process 3. ___D___ The ABO blood group is an example of this type of inheritance in humans 4. ___A___ variations of given gene for example the flower color gene has purple and white 5. ____N___ a single gene with multiple effects is described as this 6. ___L____ Failure of chromosomes to separate during mitosis or meiosis 7. ___Q____ phase of the cell cycle where DNA is synthesized 8. ____R___ stage of mitosis where a cleavage furrow forms in animal cells 9. ___M____ the appearance of an organism 10. _____F__What is the sex of a SRY- negative XY individual Name______KEY_________________ A. B. C. D. E. F. G. H. I. J. K. L. M. N. O. P. Q. R. alleles asexual autosomes co-dominance epistasis female G1 phase genotype male meiosis mitosis nondisjunction phenotype pleiotropy polygenic prophase S phase telophase
II. Short Answer (2 points each). Please CHOOSE 5 questions and answer each question using complete sentences. 1. Draw a cell with 6 XX XX XX 2. Describe 2 specific purposes for mitosis in the human body. a. b. c. d. Repair of tissue damage Growth Development Regeneration of rapidly turning-over cells (skin, blood) chromosomes in metaphase I of meiosis.
3. If an animal's kidney cells have 8 chromosomes, how many chromosomes would be in its skin cells? Since both skin and kidney cells are somatic cells and both are diploid, if the kidneys have 8 chromosomes, then the skin cells will also have 8 chromosomes.
4. Contrast mitosis and meiosis. Give two specific ways the two processes differ from one another. a. Mitosis produces identical offspring cells, meiosis produces non-identical cells. b. Daughter cells in mitosis are diploid (assuming the original cell is diploid). Daughter cells in meiosis are haploid. c. Two daughter cells are produced in mitosis, four are produced in meiosis d. Crossing over occurs in meiosis, not mitosis
5. Describe Mendel's rule of independent assortment in your own words. According to Mendel's rule of independent assortment, traits are inherited independently from one another. For example, pea height is inherited independent of pea flower color. (A heterozygous tall, purple flowered plant can produce gametes with a tall (D) allele and a white (p) allele together). 6. On which chromosome are sex-linked genes located found? (Include In your answer which gender most often is affected by sex linked traits) Sex linked traits are commonly found on the X chromosome and recessive sex linked traits, such as color blindness are more commonly seen in males. 7. Name one aneuploid condition in human genetics. Down Syndrome, Turner's Syndrome, Trisomy 18, Trisomy 13 8. Name one recessive and one dominant genetic disorder in human genetics. Recessive Cystic Fibrosis, Sickle cell disease, Tay-Sachs Dominant Huntington's, Polydactylly, Acondroplasia III. Multiple Choice 1. A cell with homologously paired chromosomes is ___. a. haploid b. diploid c. any gamete d. all animal cells e. a cancer cells 2. A carrier of a recessive, autosomal disorder (Aa) mates with a non-carrier (AA). What are the chances that their child will have this genetic disorder? a. 0% b. 25% c. 50% d. 75% e. 100% 3. One of the common uses of amniocentesis is to___. a. monitor fetal heart and respiration rates b. determine the genotype of the fetus c. alter the genetic composition of an individual prior to birth d. determine if the fetus is a heterozygote or homozygous for any given trait 4. Crossing over occurs during ___. a. S phase b. G1 phase c. meiosis II d. mitosis e. meiosis I 5. Given this cross (AaBbCC x aaBBCc), what is the likelihood that the first offspring be will (aaBBCc)? a. 1/8 b. c. d. 1/16 e.
Biol 211 Quiz 3B 25 Points October 29, 2007 I. Matching 1. __EE_____What is the sex of a SRY-negative XY individual 2. ___X____ the appearance of an organism 3. ____S___ stage of mitosis where a cleavage furrow forms in animal cells 4. _____T__ phase of the cell cycle where DNA is synthesized 5. ____Y___ Failure of chromosomes to separate during mitosis or meiosis 6. ____W___ a single gene with multiple effects is described as this 7. ___JJ___ variations of given gene for example the flower color gene has purple and white 8. ___GG___ The ABO blood group is an example of this type of inheritance in humans 9. ____AA__ in animals, gametes are produced using this process 10. ____HH__ chromosomes that are not sex chromosomes are called this Name__________________ S. telophase T. S phase U. prophase V. polygenic W. pleiotropy X. phenotype Y. nondisjunction Z. mitosis AA. meiosis BB. male CC. genotype DD. G1 phase EE. female FF. epistasis GG. co-dominance HH. autosomes II. asexual JJ. alleles
II. Short Answer (2 points each). Please CHOOSE 5 questions and answer each question using complete sentences. 1. Contrast mitosis and meiosis. Give two specific ways the two processes differ from one another. a. Mitosis produces identical offspring cells, meiosis produces non-identical cells. b. Daughter cells in mitosis are diploid (assuming the original cell is diploid). Daughter cells in meiosis are haploid. c. Two daughter cells are produced in mitosis, four are produced in meiosis d. Crossing over occurs in meiosis, not mitosis 2. Describe Mendel's rule of independent assortment in your own words.
According to Mendel's rule of independent assortment, traits are inherited independently from one another. For example, pea height is inherited independent of pea flower color. (A heterozygous tall, purple flowered plant can produce gametes with a tall (D) allele and a white (p) allele together).
3. On which chromosome are sex-linked genes located found? (Include In your answer which gender most often is affected by sex linked traits) Sex linked traits are commonly found on the X chromosome and recessive sex linked traits, such as color blindness are more commonly seen in males.
4. Name one aneuploid condition in human genetics
5. Name one recessive and one dominant genetic disorder in human genetics. Down Syndrome, Turner's Syndrome, Trisomy 18, Trisomy 13 6. Draw a cell with 6 chromosomes in metaphase I of meiosis. 7. Describe 2 specific purposes for mitosis in the human body. a. Repair of tissue damage b. Growth c. Development d. Regeneration of rapidly turning-over cells (skin, blood)
XX XX XX
8. If an animal's kidney cells have 8 chromosomes, how many chromosomes would be in its skin cells? Since both skin and kidney cells are somatic cells and both are diploid, if the kidneys have 8 chromosomes, then the skin cells will also have 8 chromosomes. III. Multiple Choice 1. One of the common uses of amniocentesis is to___. a. monitor fetal heart and respiration rates b. determine the genotype of the fetus c. alter the genetic composition of an individual prior to birth d. determine if the fetus is a heterozygote or homozygous for any given trait 2. Crossing over occurs during ___. a. G1 phase b. meiosis I c. meiosis II d. mitosis e. S phase 3. A cell with homologously paired chromosomes is ___. a. a cancer cell b. all animal cells c. any gamete d. diploid e. haploid 4. A carrier of a recessive, autosomal disorder (Aa) mates with a non-carrier (AA). What are the chances that their child will have this genetic disorder? a. 0% b. 25% c. 50% d. 75% e. 100% 5. Given this cross (AaBbCC x aaBBCc), what is the likelihood that the first offspring will be (aaBBCc)? a. 1/8 b. c. d. 1/16 e.