Watch it #1
What are traits?
Watch it #2
The story of Fido's physical traits
Read through each of the inherited traits and determine if you have a dominant gene or a recessive gene on the lab sheet for this station.
Please keep in mind that dominant genes are not always the most common genes, it just means they show up if you inherit at least 1 copy of that gene from your parents.
Dominant Gene - it only takes 1 copy of the gene from either parent to show that trait
Recessive Gene - you have to get a copy of the recessive gene from both parents in order to show that trait
Attached or Detached(unattached) earlobe - Attached earlobes connect to the neck more completely than detached earlobes, check out the example in the picture.
Detached is dominant
Attached is recessive
Tongue rolling - if you can roll your tongue, you show the dominant trait. If you cannot roll your tongue, you show the recessive trait.
Dimples are indentions on the cheeks (not the corners of your mouth). Dimples are dominant, no dimples is recessive.
Handedness describes our preference for using either our left or right hand for writing and other activities. Right handed is dominant, left handed is recessive.
Freckles are dominant, not having freckles is recessive
Round hair follicles make straight hair, flattened or c-shaped hair follicles make curly hair, and oval hair follicles make wavy hair. Hair texture is a continuous trait, meaning that hair can be straight or curly or anywhere in between.
Curly hair is dominant, straight hair is recessive
Cleft chins are dominant, round chins are recessive.
Allergies are dominant.
Not having allergies is recessive.
Weave your fingers together and clasp your hands. Which thumb is on top, the one from the right hand or the left hand?
This trait is influenced by many genes, but it seems that
left thumb on top is dominant
right thumb on top is recessive
Can you see the colored shapes inside the dot pattern?
If you can, you are not color blind for these colors, which is dominant
If you cannot (honestly) then you show the recessive trait of color blindness for these colors. (There's actually many types of color blindness!)
If the shape of your hair line dips down to a point on your forehead above your nose, that's a widows peak which is dominant.
If your hairline is straight across the forehead you show the recessive trait.