Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Human Traits Survey Name_______________ CB 33 Let’s look at some of the traits that people have. You need to complete the survey for yourself and ALSO for 2 other people that do not take my class. If possible, these 2 people should be related to you, however, you can also choose unrelated family, teachers, or friends. You will need a ruler. You will need a ruler. Traits measured in centimeters: Trait Hand span – distance from tip of pinkie to tip of thumb when hand is fully stretched Self 1: 2: Phenotype Phenotype Phenotype A result of multiple genes so genotype cannot be determined from phenotype. Reaction time – number of centimeters that passes before you can catch a falling ruler (best out of 3) Phenotype Phenotype Phenotype A result of multiple genes so genotype cannot be determined from phenotype. Yes or no/Multiple choice traits: Trait Eye color – what color are your eyes? A result of multiple alleles and maybe many genes. Blue is said to be recessive. Freckles – do you have freckles? Say “yes” only if you have LOTS of freckles all over your nose and cheeks. Sun freckles do not count. Self Check the phenotype: brown blue green hazel Phenotype: 1: Check the phenotype: brown blue green hazel Phenotype: 2: Check the phenotype: brown blue green hazel Phenotype: Possible Possible Possible Genotype(s): Genotype(s): Genotype(s): Freckles are dominant so if a person has freckles we know they have genotype FF or Ff. No freckles would be ff. PTC tasting – can you taste the bitter PTC on the paper strip? A “taster” will without doubt know they can taste the bitter compound Tasting is a dominant trait. Phenotype: Phenotype: Phenotype: Possible Possible Possible Genotype(s): Genotype(s): Genotype(s): Tongue rolling - can you roll your tongue into a tube? Phenotype: yes no Possible Genotype(s): Phenotype: yes no Possible Genotype(s): Phenotype: yes no Possible Genotype(s): Dimples are dominant. Phenotype: yes no Possible Genotype(s): Phenotype: yes no Possible Genotype(s): Phenotype: yes no Possible Genotype(s): Earlobe attachment – are your earlobes attached to the side of your face? Phenotype: attached free Phenotype: attached free Phenotype: attached free Attached are recessive and free are dominant. Possible Possible Possible Genotype(s): Genotype(s): Genotype(s): Widow’s peak – do you have a widow’s peak (hairline has a V)? Phenotype: yes no Possible Genotype(s): Phenotype: yes no Possible Genotype(s): Phenotype: yes no Possible Genotype(s): Phenotype: yes no Possible Genotype(s): Phenotype: yes no Possible Genotype(s): Phenotype: yes no Possible Genotype(s): Phenotype: normal hitchhiker Possible Genotype(s): Phenotype: normal hitchhiker Possible Genotype(s): Phenotype: normal hitchhiker Possible Genotype(s): Handedness – are you right or left handed? For this activity assume right handed is dominant. Phenotype: right left Possible Genotype(s): Phenotype: right left Possible Genotype(s): Phenotype: right left Possible Genotype(s): Color blindness- are you color blind? This trait is on the x chromosome so it is more likely that a male will have this trait. We will discuss this more later. Hair color – what color is your hair? yes no yes no yes no black brown blond red Tongue rolling is dominant! Dimples – do you have dimples on your cheeks? Widow’s peak is dominant. Cleft chin – do you have a cleft chin? Cleft chin is dominant. Hitchhiker’s thumb - can you extend the top of the thumb backwards nearly 90°? Normal thumb is domiant. Normal Hitchhiker A result of multiple genes so genotype cannot be determined from phenotype. black brown blond red black brown blond red Polygenetic and Monogenetic Traits What does it mean to be polygenetic? Write your answer and illustrate it with a drawing! What does it mean to be monogenetic? Write your answer and illustrate it with a drawing! Which traits that we examined seem to be polygenetic? Which traits that we examined seem to be monogenetic? Trait Frequencies Trait PTC tasting – can you taste the PTC on the paper? Freckles – do you have freckles? Say “yes” only if you have LOTS of freckles all over your nose and cheeks. Sun freckles do not count. Tongue rolling - can you roll your tongue into a tube? Dominant Phenotype “Yes” Class total # in sample pool Frequency in class Trait Dominant Phenotype “Yes” Class total # in sample pool Frequency in class Dimples – do you have dimples on your cheeks? Earlobe attachment – are your earlobes attached to the side of your face? Widow’s peak – do you have a widow’s peak (hairline has a V)? Cleft chin – do you have a cleft chin? Hitchhiker’s thumb - can you extend the top of the thumb backwards nearly 90°? Handedness – are you right or left handed? Color blindness- are you color blind? Look back at the dominant and recessive phenotypes and compare them to the frequencies we saw in class. Is the dominant gene always the most common? Explain and use evidence to support your answer.