Download Sheep See, Sheep Do? - Utah Agriculture in the Classroom

What determines
the type of ice
cream that you
prefer; do you like
what your friends
and family like, or
were you just born
that way?
Inherited vs Acquired Traits
inherited trait: a genetically determined
characteristic or quality that distinguishes
someone or something
Inherited traits are passed in DNA from
parents to their offspring.
acquired trait: develops during the lifetime of
the organism but is not in the organism’s
DNA and is not inherited by its offspring
Acquired traits are often learned.
Lambs Eat What Mom Eats
www.youtube.com/.webloc
PTC (phenylthiocarbamide)
The ability to taste PTC (or not) is conveyed by a single
gene that codes for a taste receptor on the tongue. The
PTC gene, TAS2R38, was discovered in 2003. Studies
suggest a correlation between the ability to taste PTC and
preferences for certain types of food (“PTC: Genes,” n.d.)
Are you a taster
or a
non-taster?
The PTC gene has about
85% of the total influence
over whether someone is a
taster or a non-taster (“PTC:
Gene,” n.d). Environmental
factors can influence PTC
tasting.
Domestic Farm Animals
Journey of Discovery
• Why haven’t most animal species been farmed?
• What type of animals are best suited for farming?
• Why aren’t elephants farmed in Asia to accomplish
work?
• Why is temperament important to a domesticated
animal?
• What inherited traits and acquired traits make an
animal suitable for domestication?