Traits Inventory Mrs. Stewart Biology

Traits Inventory Analysis Write a research question Does the dominant form occur more often within a population? Is the dominant trait more commonly found in a population, on average? Write a hypothesis

Conduct experiment and gather data Fill out the traits inventory with your table group and then we will gather numbers as a class

Earlobe Attachment

Hitchhiker’s thumb

Tongue Rolling

Dimples

Right vs. Left Handed

Freckles

Naturally Curly Hair Curly Straight

Cleft Chin

Allergies

Widow’s Peak Straight Hairline Widow’s Peak

Crossing your hands. Which thumb is on top?

Red-Green Color Blindness

All Classes – Data Compilation sample size = 131 students Trait % yes % no Detached Earlobes 54 46 Hitchhiker’s Thumb 53 47 Tongue rolling 84 16 Dimples 44 56 Right handed 85 15 Freckles 45 55 Curly hair 38 62 Cleft chin 17 83 Allergies 71 29 Widow’s peak 28 72 Cross left thumb over right 66 34 Red/Green colorblind 5 95

Graph data Create a bar graph to show the percentage of students in this class that have/do not have each trait

Analyze data Trait Dominant Form Detached Earlobes Dominant Hitchhiker’s Thumb Tongue rolling Recessive Dimples Dominant – may fade Right handed Freckles Curly hair Cleft chin Allergies Widow’s peak Cross left thumb over right Not genetically controlled Red/Green colorblind