1 / 11

Probability & Heredity

Probability & Heredity. Power notes for section 4-2. What’s the chance?. Suppose you were to toss a coin 20 times. Predict how many times the coin would land with heads up and how many times it would land with tails up?. 2. Principles of Probability.

ovid
Download Presentation

Probability & Heredity

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Probability & Heredity Power notes for section 4-2

  2. What’s the chance? • Suppose you were to toss a coin 20 times. Predict how many times the coin would land with heads up and how many times it would land with tails up?

  3. 2. Principles of Probability • Probability = to predict the results of a particular event • Probability is # that describes how likely an event will occur What is the chance of getting head?

  4. 3. Mathematics of Probability • Since there are only 2 ways a coin can land you say there is a 1 in 2 chance of it landing heads up or tails up. • Also written: • ½ • 50%

  5. 3. Independence of Event • If you toss a coin 5 times and each time it lands heads up. What would you expect to find if you tossed it again? • Answer: There is still a 50% or a 1 in 2 chance of getting heads. • Why: Each event occurs independently of each other

  6. Vocabulary nb page 23 • Phenotype: Physical appearance of a trait • Genotype: Genetic make up of a trait • Homozygous- has the same alleles for a trait • 2 dominant or 2 recessive alleles • Heterozygous- has different alleles for a trait • 1 dominant and 1 recessive allele

  7. 3. Punnett Squares • Is a chart that shows all the possible combinations of alleles that can result from a genetic cross. T t T T T t T T t t t t

  8. 3. Prediction Probabilities

  9. Pedigree Chart A chart used to show phenotypes of genetically related family members

More Related