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Monohybrid Crosses. Gregor Mendel. Dihybrid Crosses. Sex-Linked. Pedigrees. 1pt. 1 pt. 1 pt. 1pt. 1 pt. 2 pt. 2 pt. 2pt. 2pt. 2 pt. 3 pt. 3 pt. 3 pt. 3 pt. 3 pt. Pea plants can be observed to be tall, medium, or short in height? TRUE or FALSE. False

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  1. Monohybrid Crosses Gregor Mendel Dihybrid Crosses Sex-Linked Pedigrees 1pt 1 pt 1 pt 1pt 1 pt 2 pt 2 pt 2pt 2pt 2 pt 3 pt 3 pt 3 pt 3 pt 3 pt

  2. Pea plants can be observed to be tall, medium, or short in height? TRUE or FALSE

  3. False Mendel found different traits do not blend

  4. Mendel obtained his F1 generation by the result of: cross-pollination among parents and the next generation cross-pollination between individuals of the parental p generation bees pollinating the parental generation crosses between the offspring of a parental cross

  5. b. cross-pollination between individuals of the parental p generation

  6. What are Mendel’s three laws and explain them.

  7. 1. The Law of Dominance 2. The Law of Segregation 3. The Law of Independent Assortment

  8. If two heterozygous tall pea plants are crossed, what percentage of the F1 generation would be expected to have a short pea plant phenotype?

  9. 25%

  10. Red coat colour in cats is produced by the homozygous genotype HRHR, blue coat color by the genotype HBHB, and purple by the genotype HRHB. What kind of interaction is this known as, and what would be the phenotypic ratio of a mating between two purple cats?

  11. 1 Blue: 1 Red: 2 Purple Incomplete Dominance

  12. Two parents are crossed to produce an offspring with type O blood. The genotypes of the parents could be: A) AA × AB B) Ai × AB C) BB × ii D) AB × ii E) Bi × Bi

  13. Bi x Bi

  14. Refer to the illustration above the box labeled “X” represents the phenotype __________

  15. Round, yellow

  16. In a certain plant, the alleles A, B, and C are dominant to the alleles a, b, and c. A plant with the genotype AABbcc will have the same phenotype as the plant with the genotype _____. A) aabbcc B) AaBBccC) AAbbcc D) AABBCc

  17. AaBBcc

  18. In humans, dark hair is dominant over blonde hair and curly hair is dominant over straight hair. A woman with dark, curly hair marries a man with blonde, curly hair. The woman is heterozygous for both traits and the man’s father has straight hair. What is the probability as a percent that they will have a child with blonde, straight hair?

  19. 12.5%

  20. A sex-linked recessive gene n produces colour-blindness in humans. The normal gene is represented by the letter N. Give the genotype for a. a man who is normal. b. a female carrier. c. a man who is colour-blind.

  21. a. XNY b. XNXn c. XnY

  22. If a woman was not colour blind and her father was colour blind, what would be her genotype?

  23. XNXn

  24. Can a colour blind woman and a normal male have colour-blind daughters? Colour blind Sons? Explain your answer.

  25. Daughters: No Sons: Yes

  26. In a pedigree what shape represents a boy and what shape represents a girl?

  27. Square: Boy Circle: Girl

  28. In the third generation, which are the offspring with the a/a genotype?

  29. 2,3,5

  30. What is the genotype of the second person in generation II?

  31. Aa

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