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Get out ISN we are taking notes. Topic No. 23 Genetics

Get out ISN we are taking notes. Topic No. 23 Genetics. Content Obj. You will demonstrate comprehension of Genetics by watching a brainpop video and correctly answering the questions that follow.

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Get out ISN we are taking notes. Topic No. 23 Genetics

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  1. Get out ISN we are taking notes. Topic No. 23 Genetics Content Obj. You will demonstrate comprehension of Genetics by watching a brainpop video and correctly answering the questions that follow. Language Obj. You will describe and explain how traits are passed using words homozygous, heterozygous, DNA and gene.

  2. GENETICS The Study of Heredity http://www.brainpop.com/health/geneticsgrowthanddevelopment/heredity/

  3. HEREDITY • The process in which characteristics pass from parents to offspring.

  4. TRAIT • An organism’s physical characteristics Examples: eye color, hair color, height

  5. DNA • DEOXYRIBONUCLEIC ACID • THE GENETIC MATERIAL THAT CARRIES INFORMATION ABOUT AN ORGANISM AND THAT IS PASSED FROM PARENT TO OFF SPRING. • http://www.brainpop.com/science/cellularlifeandgenetics/dna/

  6. CHROMOSOME • A threadlike cellular structure that carries the information that controls inherited characteristics.

  7. GENE • A SEGMENT OF DNA ON A CHROMOSOME THAT CODES FOR A SPECIFIC TRAIT.

  8. ALLELES • THE DIFFERENT FORMS OF A GENE.

  9. GENE SCAVENGER HUNT • Find a person with the corresponding gene. Get their first and last initial.

  10. The BIG Allele is DOMINANT We write it with a CAPITAL LETTER It always shows up

  11. The small Allele is RECESSIVE It will only show up if there are two recessive alleles It is always hidden when a dominant is present. We write it with a lower case letter

  12. GENOTYPE- GENETIC MAKE-UP (COMBINATION OF LETTERS) Each genotype has 2 alleles ONE FROM MOM ONE FROM DAD Aa http://www.brainpop.com/health/geneticsgrowthanddevelopment/genetics/

  13. HOW DO WE KNOW WHAT LETTER TO USE Use the FIRST letter of the DOMINANT Gene

  14. What are the combination of alleles? AA Aa aa

  15. PHENOTYPE • The physical appearance of a trait (the trait you can see) Example: eye color, skin color, hair color

  16. What will be the phenotype for the following genotypes? PHENOTYPE is the physical description. AA Aa aa AFRO AFRO NO AFRO

  17. HOMOZYGOUS SAME AA, aa

  18. HETEROZYGOUS DIFFERENT Aa

  19. Freckles is Dominant to Non freckles • ____ Freckles ____ No freckles • _______ Homozygous Dominant • _______ Heterozygous • _______ Homozygous Recessive

  20. Brown hair is Dominant to Red Hair • ____ Brown _____ Red • _______ Homozygous Dominant • _______ Heterozygous • _______ Homozygous Recessive

  21. HOMOZYGOUS AA/ aa • HOMOZYGOUS DOMINANT AA • HOMOZYGOUS RECESSIVE aa • HETEROZYGOUS Aa • MUTATION 3

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