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Punnett squares

aretha avatar
aretha
38 diapositives · 646 Views · Aug 14, 2014

Punnett squares. The tool which uses the combination of genes to predict the traits showing up in offspring. Green eyes are dominant and yellow eyes are recessive. The genotype of two insects are Gg and Gg. Complete a Punnett square!. g. G. GG. G. Gg. ??. g. Gg. ?? = gg.

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Punnett squares
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  1. Punnett squares

  2. The tool which uses the combination of genes to predict the traits showing up in offspring.

  3. Green eyes are dominant and yellow eyes are recessive. The genotype of two insects are Gg and Gg. Complete a Punnett square!

  4. g G GG G Gg ?? g Gg ?? = gg

  5. What % of the young would have green eyes? 75% Yellow eyes? 25%

  6. If B=black and b=brown and two wolves are hybrid Bb and purebred bb what would their young be? Complete a Punnett square!

  7. b B Bb b bb bb b Bb

  8. What % of young would be black and what % would be brown? Black = 50 % Brown = 50 %

  9. B=Brown eyes which are dominant, b=blue eyes which are recessive What are the alleles of the parents for the following chart?

  10. b B BB B Bb b bb Bb

  11. The parents would be Bb and Bb and both would have brown eyes!

  12. Curly hair is dominant, and a couple have curly hair. How many of their babies will have curly hair?

  13. A. All of the babies B. Probably most of the babiesC. None of the babies Answer - B

  14. What percent of your genes come from each parent? 50%

  15. What % of genes come from each grandparent? 25%

  16. If green snake skin is dominant and yellow is recessive, what are the alleles of the parent snakes for the following:

  17. G G Gg g Gg g Gg Gg

  18. Homozygous (GG) green Homozygous (gg) yellow

  19. How many different Punnett squares can you think of?

  20. If big ears are dominant and both parents are homozygous dominant, what percent of babies will have big ears?

  21. E E EE E EE EE E EE

  22. 100%

  23. Three fingers is dominant and five fingers recessive. If mom is homozygous dominant and dad is heterozygous,what percent of young will have three fingers?

  24. F F FF F FF Ff f Ff

  25. 100%

  26. Big noses are dominant and little noses are recessive. If Dad is homozygous dominant and mom is homozygous recessive, what percent of children will have big honkers?

  27. N N Nn n Nn Nn n Nn

  28. 100%

  29. Short is dominant and tall is recessive. If dad is heterozygous dominant and mom is homozygous recessive, what percent of the children will be short and tall?

  30. s’ S Ss’ s’ s’s’ s’s’ s’ Ss’

  31. 50% short 50% tall

  32. Long neck is dominant and short neck is recessive. If dad is heterozygous dominant and mom is heterozygous dominant, what percent of the children will have long necks and short necks?

  33. n N NN N Nn nn n Nn

  34. 75% Long 25% Short

  35. Short tongues are dominant and long are recessive. If mom is homozygous recessive and dad is homozygous recessive, what percent of the children will have long tongues?

  36. t t tt t tt tt t tt

  37. 100%

  38. Thank you