• Sci/230 Genetics
    fibrosis. 2. What would a Punnett square that shows how the son in generation IV (marked with an A) inherited cystic fibrosis look like? The boy in generation IV is homozygous recessive (CC), the disease is also recessive. The parents do not have the disease therefore they are heterozygous (CC...
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  • Genetics Worksheet
    Mendel a trait may not show up in someone but still may be able to pass that trait on to the next generation. 2. What would a Punnett square that shows how the son in generation IV (marked with an A) inherited cystic fibrosis look like? The son in generation IV shows that he is homozygous...
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  • Genetics
    . 2. What would a Punnett square that shows how the son in generation IV (marked with an A) inherited cystic fibrosis look like? | |A |a | |A |AA |Aa | |a |Aa |aa...
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  • Uop Sci/185
    members in the earlier stages of the pedigree. 2. What would a Punnett square that shows how the son in generation IV (marked with an A) inherited cystic fibrosis look like? | A | a | A | AA | Aa | a | Aa | aa | Key: Male with Huntington’s disease unaffected male Female...
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  • Genetics
    expanded gene and one copy of the normal gene. 2. What would a Punnett square that shows how the first daughter in generation II (marked with a B) did not inherit Huntington’s disease look like? | |B |b | |b |Bb |bb | |b |Bb |bb...
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  • Genetics Worksheet
    is not present, it can become present dependent on the ratio of the amount of genes when it passes down. 2. What would a Punnett square that shows how the son in generation IV (marked with an A) inherited cystic fibrosis look like? [A]a] A [AA] A a] a [Aa] aa] Key...
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  • Genetics Worksheet
    by the genes that are passed on unchanged. So if the CF gene is not present, it can become present depending on the ratio of genes as it passes down. 2. What would a Punnett square that shows how the son in generation IV (marked with an A) inherited cystic fibrosis look like? Key...
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  • Papers
    the other parent. 2. What would a Punnett square that shows how the first daughter in generation II (marked with a B) did not inherit Huntington’s disease look like? Daughter in generation II = no disease = homozygous recessive (hh). Her father = has disease = has children who...
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  • Essay
    chosen cross can be made. If you bred IV-1 with IV-3, what is the probability that the first baby will show the recessive phenotype? Answer: The answer would be: 2/3  2/3  1/4 = 1/9 or 0.11 Probability that IV 1 and IV 3 mice are heterozygous is 2/3. This is because both of their parents are...
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  • Essay
    diagrammed in the Punnett square shown in Figure 14.1, where 1, 2, 3, and 4 represent the genotypes corresponding to each box within the square. Figure 14.1 ____ 12. Which of the boxes marked 1-4 correspond to plants with dark leaves? a.|1 only| b.|1 and 2| c.|2 and 3| d.|4 only| e.|1, 2...
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  • Fhftghf
    is due to the action of a single gene. 17. What is the difference between a monohybrid and a dihybrid cross? 18. How would you label the 4 columns and the 4 rows on a dihybrid Punnett square when a female cat with the genotype RrDd is crossed with a male cat with the genotype RrDD? (R=curly tail...
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  • Biology Revision for Cells
    ff. If the alleles are different eg Ff then it is heterozygous. Cystic fibrosis Genetic diagrams (Punnett squares) Genetic diagrams or Punnett squares are used to show the possible outcomes of a particular cross. A dominant allele is shown by a capital letter, and a recessive allele by a lower...
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  • Physics lab
    disappeared. We can visualize what Mendel saw and reasoned by using a Punnett Square. A Punnett Square is a simple tool to predict the outcome of a cross because it shows how alleles from the parents separate in gametes (the sex cells: egg and sperm) and randomly recombine in the zygote after...
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  • Foundations of Genetics
    generation. This can be expressed easily expressed using a Punnett square as show below. Genes on homologous chromosomes 6 Punnett square A cross between two peas with a true breeding purple (PP) flower crossed with a true breeding white (pp) flower would result in the following possible...
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  • Review Genetics
    plant heterozygous for seed color, seed shape, and pod shape (YyRrIi; see Table 14.1). How large a Punnett square would you need to draw to predict the offspring of a self-pollination of this “trihybrid”? 2. The plant could make eight different gametes (YRI, YRi, YrI, Yri, yRI, yRi, yrI, and...
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  • Genetics
    reform during fertilization ii) Allows us to predict the outcome (offspring) of a cross between 2 individuals iii) How to solve genetics problems (1) Determine genotypes of parents (2) Determine genotypes of their gametes (3) Set up Punnett square (place eggs along one side and sperm along another...
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  • Genetics Test
    in the F1. d. the traits were lost in the F1 due to blending of the parental traits. e. members of the F1 generation had only one allele for each character, but members of the F2 had two alleles for each character. ____ 22. What are Punnett squares used for? a. predicting the result of genetic...
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  • Ap Biology Learning Objectives Ch 14
    alleles for a heritable character separate, or segregate, during gamete formation and end up in different gametes. 4. Use a Punnett square to predict the results of a monohybrid cross, stating the phenotypic and genotypic ratios of the F2 generation.  5. Distinguish between...
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  • Bio 2 Notes
    | F1 Pp (purple) Phenotypic Ratios: 3:1 (purple to white) F2 Punnett Square (shown) Genotypic Ratios: 1:2:1 (PP : Pp : pp) j. Test Cross xxvii. If a plant has the purple-flowered phenotype, how can we determine its genotype? xxviii. With a test cross: breed this...
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  • Swag
    . 26. What  is  pleiotropy? •Most  genes  have  multiple  phenotypic  effects,  a  property  called  pleiotropy Explain  why  this  is  important  in  diseases  like  cystic  fibrosis  and  sickle-  cell disease. •For  example,  pleiotropic  alleles  are  responsible  for  the  multiple...
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