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- Part VI: Discussion 1. Write the genetic designation for: a. a male b. a female 2. Which parent determines the sex of the offspring in humans? Explain. 3. Explain the term "autosomal." 4. In humans, right-handed is dominant to left. Free earlobes are dominant to attached. These are autosomal characteristics. A right-handed man with attached earlobes whose mother was lefthanded marries a left-handed woman with free earlobes whose mother had attached earlobes. You are the genetic counselor. Construct a Punnett square to determine the types of children this couple could produce.For question c1. I put 47, xxy I'm not sure and diagnosis would be trisomy 13 syndrome ?Match the chromosome disorder to its descriptionin the key. Jacobs syndrome a. female with undeveloped ovaries and uterus, unable to undergopuberty, normal intelligence, can live normally with hormonereplacementb. XXY male, can inherit more than two X chromosomesc. male or female, mentally impaired, short stature, flat face, stubbyfingers, large tongue, simian palm creased. XXX or XXXX femalee. caused by nondisjunction during spermatogenesis
- Chromosomes and Heredity Multiple Choice: Write the CAPITAL letter of your answer choice in the blank AND circle the letter. 1. A family record that shows how a trait is inherited over several generations is called a A. karyotype B. Punnett square C. pedigree 2. A person that has ONE copy of an AUTOSOMAL RECESSIVE allele and does not express the trait, but can pass it along to his/her offspring is called a A. mutant B. carrier C. hemophiliac D. gene marker 3. The failure of homologous A. segregation 4. This picture of an organism's chromosomes is called a A. pedigree B. Punnett square C. karyotype D. chart chromosomes to separate during meiosis is called B. codominance C. sex-linkage 78 38 88 28 XX XK X 85 X5 88 88 88 AA AB on 5. The person shown at the right is a A. male B. female 6. The chromosomes that DO NOT determine sex are called A. sex chromosomes B. autosomes 7. Which parent determines the sex of the baby? A. father B. mother body. B. Klinefelter **** 9. Most sex-linked genes…STUDY GUIDE Name a A HUMAN TRAITS In your textbook, read about color blindness in Section 27:2. 1. Color blindness is a trait carried on the sex chromosomes. Let C be normal color vision and c b red-green color blindness. Use the diagrams to answer the questions. a. What is the sex of each of these people? Write either male or female on the blank below each. XX XX X Xa XX C b. Which are red-green color blind? c. Which have normal color vision? X X XXXXX B ①① X X XXXXX M a XaXa Date a d. Which has normal color vision even with the gene for color blindness? 2. a. Complete the following Punnett squares. The first one has been done for you. b. Using these colors, shade the following parts of the Punnett squares. Blue-normal females Yellow-normal males Red-color blind females Green-color blind males X X XXXXX Class D CHAPTER 27 X X XXXXX a Xalo E X X X×××× X oooolgolma 8 X X XXXXX a X a Xa 15 1Based on the attached picture Are the blue eye color and white body color mutations located on the X-chromosome and/or on anautosomal chromosome? Explain your answers and show your work.
- I. Give the chromosome number and chromosome configuration if the following mutations occurred in rice, a diploid organism wherein the number of chromosomes per set is 12. 1. Trisomy-11 2. Double Monosomy 3. Triploidy 4. Nullisomy-12 5. Tetraploid II. Give the chromosome number for the following: 6. 311+ 21 7. 4||+3||| 8. 2n=4 treated with colchicine to produce an autotetraploid 9. Monoploid maize (2n=20) 10, 51|^+ 51|BGeneration a. What is the genotype of the mother? b. What is the genotype of the father? c. What are the genotypes of the five children" 41. What is/are the possible inheritance pattern(s) for the characteristic in the following pedigree? 11 a. Autosomal recessive only i b. Autosomal dominant only) c. X-linked recessive only d. X-linked dominant only e. All of the above are possible. 42. What is/are the possible inheritance pattern(s) for the characteristic in the following pedigree? 11 a Autosomal recessive only b. Autosomal dominant only c. X-linked recessive only d X-linked dominant only e. All of them are possible. 43. If the phenotype followed in the pedigree below is X-linked recessive, then the genotype of 11-2 is HI a homozygous dominant b heterozygous chomozygous recessive d hemuzygous dominant e bemizygous recessivewhite b. light black c. medium TA I. X-LINKED OR SEX-LINKED TRAITS A color-blind man marries a woman wit blind. Use aXfor normal vision, and al X for color-blindness, (Remember where sex-linked traits are carried). What is the genotype of the ma al vision, whose father was color- h norm type of the manand woman? Use a Punnett square to show the phenotypes of their progeny 172
- Pedigree 2: A. What is the most likely mode of inheritance of this disease? Choose from: autosomal dominant, autosomal recessive, X-linked dominant, X-linked recessive. B State the genotypes of individuals # 1 #4. C If individual #3 has another daughter with the same partner, what is the probability that this daughter will be affected (show the disease)?IX. The blood of several members of a particular family was determined, and the results are tabulated below. Individual Blood Type Genotype Father Mother B Child 1 AB Child 2 B. Child 3 Grandfather (mother's side) Grandmother (father's side) AB Assuming that no adultery or adoption took place for all generations, answer the following questions: a. Give the most probable genotype for each individual. Supply your answers on the table above. b. What is/are the most probable genotype(s) for the grandmother on the mother's side? c. If the father and the mother decide to have two more children, what is the probability that the first would be female type A and the second male type AB?a. What is the diploid number of chromosomes for a human? b. What is the haploid number of chromosomes for a human? Which cells are considered diploid, gametes or somatic cells? C. d. Which cells are considered haploid, gametes or somatic cells?