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Investigative Science

Page 69 Monday May 19, 2014. Investigative Science. 4 Really know 3 Know 2 Know most 1 Know sort of 0 Don’t know. Warm up: What is the phenotype of a dog that has the following genotype Tt . T is an allele coding for a long tail and t is an allele coding for a short tail.

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Investigative Science

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  1. Page 69 Monday May 19, 2014 Investigative Science 4 Really know 3 Know 2 Know most 1 Know sort of 0 Don’t know • Warm up: What is the phenotype of a dog that has the following genotype Tt. T is an allele coding for a long tail and t is an allele coding for a short tail. • Notebook Check: • Page 12 (Quiz 30) • Page 23 (Quiz 31)

  2. Page 69 Monday May 19, 2014 Investigative Science 4 Really know 3 Know 2 Know most 1 Know sort of 0 Don’t know Students will be able to: Describe why genetics follows law of probability. Students will understand: How to determine the probability of inheriting genetic traits. Student’s self-evaluation: Complete at home or at the end of class, use the 4-3-2-1-0 system of understanding Homework: none.

  3. Page 70 Monday May 19, 2014 Investigative Science Students will understand: How to determine the probability of inheriting genetic traits. 4 Really know 3 Know 2 Know most 1 Know sort of 0 Don’t know Three of four alleles that determine sex are X—female. Knowing this, how is it possible that 50% of the population men and 50% women? -Create a Punnett square to answer this question -A person’s gender is controlled by two alleles of one gene (just like several other traits) -The alleles are X and Y. X is the female allele and Y is the male allele -X is from the mother, Y is from the father -Punnett square representing how a person’s gender is determined Allele’s from the father XX =Girl 2 out of 4 outcomes are girls XY =Boy 2 out of 4 outcomes are boys Allele’s from the mother X Y XX XY XX XY X X

  4. Page 70 Monday May 19, 2014 Investigative Science Students will understand: How to determine the probability of inheriting genetic traits. 4 Really know 3 Know 2 Know most 1 Know sort of 0 Don’t know Practice crossing dogs Two traits: -No spot -Black spot -White ears -Black ears Four alleles -N = no spot -n = black spot -W = white ears -w = black ears

  5. Page 70 Monday May 19, 2014 Investigative Science Students will understand: How to determine the probability of inheriting genetic traits. 4 Really know 3 Know 2 Know most 1 Know sort of 0 Don’t know Practice crossing dogs Draw the following dogs NNWW NNWw NNww nnWW nnWw nnww

  6. Page 71 Monday May 19, 2014 Investigative Science Students will understand: How to determine the probability of inheriting genetic traits. 4 Really know 3 Know 2 Know most 1 Know sort of 0 Don’t know Use the information below to determine the probability of a puppy being born with white ears and no spots.

  7. Page 71 Monday May 19, 2014 Investigative Science Students will understand: How to determine the probability of inheriting genetic traits. 4 Really know 3 Know 2 Know most 1 Know sort of 0 Don’t know Use the information below to determine the probability of a puppy being born with black ears and not spots.

  8. Page 71 Monday May 19, 2014 Investigative Science Students will understand: How to determine the probability of inheriting genetic traits. 4 Really know 3 Know 2 Know most 1 Know sort of 0 Don’t know Use the information below to determine the percentage deviation from the expected number of black spot phenotypes in a litter of 10 puppies: 8 are homozygous recessive for spots and 2 are heterozygous for spots? Deviation = (Observed – Expected) / Total

  9. Page 72 Monday May 19, 2014 Investigative Science Students will understand: How to determine the probability of inheriting genetic traits. 4 Really know 3 Know 2 Know most 1 Know sort of 0 Don’t know Use the information below to determine the deviation from the expected number of black ear phenotypes in a litter of 10 puppies: 6 are homozygous recessive for ear color and 4 are heterozygous for ear color?

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