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Reviewing Your Notes

Reviewing Your Notes. 1. The passing of traits from parents to offspring is called ___________. HEREDITY. 3. Why is Mendel called the father of genetics? He is the first person to experiment and study traits. 2. What do Geneticist study? HEREDITY.

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Reviewing Your Notes

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  1. Reviewing Your Notes

  2. 1. The passing of traits from parents to offspring is called ___________. HEREDITY 3. Why is Mendel called the father of genetics? He is the first person to experiment and study traits 2. What do Geneticist study? HEREDITY

  3. 4. Give the 3 reasons why Mendel used pea plants in his experiments? • Reproduce sexually • Gametes in the same flower • Fertilization could be controlled

  4. 5. Explain The Law of Segregation. A trait disappears in one generation and can reappear in another.

  5. 6. Explain Mendels Law of Independent Assortment. Genes for different traits are located on different chromosomes. 7. Identify this animals phenotype.

  6. 8. What are the appropriate letters to use if black hair is dominant and white hair is recessive? B-Black b-white 9. What would you call this gene combination- “Tt” and no I don’t mean big T and little t heterozygous 10. A cross that differs by a single trait is known as a _______________ cross. monohybrid

  7. 11. Mendel concluded that each trait has 2 _________ that are inherited, 1 from each parent. Alleles Another word for a gene

  8. 12. What is it called when the offspring is a mix between the 2 parents? Like a red flower x white flower producing a pink flower. Incomplete dominance 13. Give an example of codominance. A checkered chicken

  9. 14. Give an example of a trait that has multiple alleles. Blood types 15. If a trait is X-linked, why can the father pass it on to his daughters, but not his sons? Fathers pass the Y chromosome to their sons, not the x chromosome 16. What is used to determine an organisms unknown genotype? A testcross

  10. 18. How many females in generation 2? 17. How many generations? 3 4 19. Do any females have a genetic disorder? yes

  11. 20.Any mistake or change in the DNA sequence is called a ______________. mutation 21. What happens during nondisjunction? Chromosomes don’t separate correctly and eggs or sperm can have too many or not enough chromosomes.

  12. 23. Differentiate between the different methods of detection • Withdrawing fluid from around the baby before birth. • Taking a sample of the membrane surrounding the baby • Sound waves generate an image Amniocentesis Chorion villi sampling ultrasound

  13. 24. What is wrong with this karyotype? Has an extra 21st chromosome 25. According to the karyotype, what is this persons sex?

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