GENETICS UNIT GUIDE DUE TUESDAY 2/9 MONDAY TUESDAY WEDNESDAY THURSDAY FRIDAY 1/25 1/27. Monohybrid Cross Practice Problems HW CHECK: 2/3

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1 GENETICS UNIT GUIDE DUE TUESDAY 2/9 MONDAY TUESDAY WEDNESDAY THURSDAY FRIDAY 1/25 Cell Cycle & Meiosis Post Test Review Intro to Genetics 2/1 Non Mendelian Genetics: Codominance Problems 1/26 Mendelian Genetics & Monohybrid Cross Intro 2/2 Non Mendelian Genetics Incomplete Dominance Problems Part C 1/27 Monohybrid Cross Practice Problems Part A 2/3 Sex-linked Inheritance 1/28 Monohybrid & Dihybrid Cross 2/4 Sex-linked inheritance & Pedigrees Part D 1/29 Reading Check Quiz Dihybrid Cross Practice Problems Part B 2/5 Reading Check Quiz Genetic Engineering: Case Study 2/8 2/9 2/10 2/11 2/12 Genetic Engineering: Case Study Vocab Quiz Unit Guide Due UNIT TEST Test Corrections Evolution Intro Part E Test Review Read: Chapters and UNIT TEST: February 10, 2016 Watch (Supplemental Resource): Amoeba sisters (Monohybrids and the punnett square guinea pigs) Bozeman science (Genetics) Book online at: Use your username and password to get to the biology book or Username: student26761 Password: n8j2x Coach Schrock s Website: What the State of Texas wants you to know! TEKS 6(F) predict possible outcomes of various genetic combinations such as monohybrid crosses, dihybrid crosses and non-mendelian inheritance TEKS 6(H) describe how techniques such as DNA fingerprinting, genetic modifications, and chromosomal analysis are used to study the genomes of organisms.

2 Listen and Look Here is a list of key terms you will hear and see during the reading and video. Get to know them! VOCAB QUIZ: TUESDAY, FEBRUARY 9 TH Meiosis: form of nuclear division that divides a diploid cell into haploid cells, important in forming gametes for sexual reproduction. Heredity: passing of traits from parents to offspring. Genome: all an organism s genetic material. Gene: specific region of DNA that codes for a particular protein. Alleles: any of the alternative forms of a gene that occurs at a specific place on a chromosome. Genotype: collection of all an organism s genetic information that codes for traits. Phenotype: collection of all of an organism s physical characteristics. Dominant: allele that is expressed when two different alleles are present in an organism s genotype. Recessive: allele that is not expressed unless two copies are present in an organism s genotype. Homozygous: characteristic of having two of the same alleles at the same spot on homologous pairs. Heterozygous: characteristic of having two different alleles that appear at the same spot on homologous pairs. Autosomes: chromosomes that contain genes for characteristics not directly related to the sex of the organism. Sex Chromosome: chromosome that directly controls the development of sexual characteristics. Probability: likelihood that a particular event will happen. Punnett Square: model for predicting all possible genotypes resulting from a mating. Monohybrid cross: mating between organisms that involves only one pair of contrasting traits. Dihybrid cross: mating between organisms involving two pairs of contrasting traits. Incomplete dominance: heterozygous phenotype that is a blend of the two homozygous phenotypes. Codominance: heterozygous genotype that equally expresses the traits from both alleles. Polygenic: trait that is produced by two or more genes.

3 Recall and Review: ANSWER ALL THE QUESTIONS IN COMPLETE SENTENCES. Use the videoes and your textbook to help you answer the following questions in your binder. UNIT GUIDE DUE: TUESDAY, FEBRUARY 9 TH A. Chapter State three examples of traits. 2. Define the term purebred. B. Chapter Distinguish between the terms allele and locus. Allele Locus 4. Compare and contrast genotype and phenotype. Genotype Both Phenotype 5. Explain the difference between dominant and recessive. Dominant Recessive 6. Explain how the homozygous condition differs from the heterozygous condition.

4 C. Chapter Copy and label the Punnett square at the beginning of this section. (visual vocab) 8. Explain the purpose of a testcross. 9. Define probability. 10. State two similarities and two differences between a monohybrid and a dihybrid Punnett Square. 2 Similarities 2 Differences D. Chapter Explain the difference between autosomes and sex chromosomes. Autosome Sex chromosomes 12. What is a carrier? 13. Explain why males are more likely than females to have sex-linked genetic disorders.

5 14. Can a person be a carrier for a dominant genetic disorder? Explain. E. Chapter How is incomplete dominance expressed in a phenotype? 16. How is codominance expressed in a phenotype? 17. Sample Questions 1. A human with the genotype XX is a. an example of the failure of chromosomes to separate during meiosis b. a female c. a male d. a dwarf 2. The scientist who first described the principle of dominance, segregation and independent assortment was a. Charles Darwin b. Albert Einstein c. Louis Pasteur d. Gregor Mendel 3. To visualize Mendel's experiments, or any cross in genetics, a simple diagram called a may be used. a. graphing calculator b. Punnett square c. probability circle d. genotype 4. The phenotype of a heterozygous brown rabbit is: a. brown b. BB c. bb d. Bb 5. A cross of a white hen with a black rooster produces an offspring that shows a blending or mixing of the genotype. This type of inheritance is known as a. incomplete dominance b. polygenic inheritance c. codominance d. multiple allele