Eyes
Recessive
-Blue
Dominant
-Brown
-Green
Eyebrows and Teeth
Dominant
-Unibrow
-Crooked Teeth
-Gap Teeth
Tongues
Dwarfism
Achondroplasia
Dominant
-Tongue roller
-PTC Taste
Recessive
-non roller
-PTC Tasteless
The Roloff Family
Genetics
Finger Webbing
(Syndactyly)
Agromegely -Giantism
Lack of Apoptosis
dominant
Feet
polydactyl toes
flat feet vs. high arch
Webbed Toes (syndactyly)
Bent Pinky Fingers
Hitch Hiker's Thumb
Hand Clasp
dominant
dominant
recessive
Finger Hair
dominant
Double Jointed Fingers (bent fingers...dominant)
Hand Genetics
Recessive
Dominant
- Right Handed
- Bent Fingers
-Left on top interlocking fingers
-Polydactaly (Extra fingers/toes)
-Bent Pinky Finger
-Non hitch hikers' thumb
- Finger Hair
Polydactyly
dominant
Heredity
- Left Handed
-Straight Fingers
-Right on top interlocking fingers
-5 fingers/toes
-Straight Pinky finger
-Hitch Hiker's Thumb
-No Finger hair
-Gene: A segement of DNA
with a specific sequence of nucleotides that codes for a protein (expressed trait)
-Trait: Genetic Characteristic
-Heredity: The passing on of traits from Parent to Offspring.
-Look at yourself: What traits did you get from your parents Make a list on socrative!
Genetics:
The study of Heredity
Johann "Gregor" Mendel
-The "Father of Genetics" (1822-1884)
-His now famous research project on the garden pea (Pisum sativum) from (1854-1863)
Mendel
Recessive Allele
- Investigated the inheritance of 7 traits in pea plants at the Abbey of St. Thomas in Brunn.
free
-First person to study traits and collect quantitative data. Also, predicte how traits would be passed on.
attached
Traits
Genetic traits are the physical characteristics.
-Received credit for work after death. Both Mendel's laws were attributed to him, but not stated by him.
-One whose trait is not shown when the dominant
allele is present.
-Written with a lower case (small) letter
-Examples
1. Blue eyes
2. Red hair
3. Attached ear lobes
4. Cystic fibrosis
The Allele
-Different forms of a gene. Sexually reproducing organisms get two alleles (one from mom and one from dad)
-Examples:
- Pea plants (Tall vs. Short)
-Hair color (Black, Brown, Red, Blonde)
-Eye color (Brown, hazel,
green, blue)
Dominant
Allele
One whose trait always show up in an organism when present .
-Written using a capital letter.
-Examples:
1. Widows Peak
2. Brown hair/eyes
3. Huntingtons Disease
4. Dwarfism
5. Cleft Chin
Ears
Recessive
-Attached Ear Lobes
Skin
Recessive
-No Dimples
-No Freckles
-Albino (no pigmentation
Dominant
-Dimples
-Freckles
-Pigmentation
Hair
Recessive
-No Widow's peak
-Reverse Hair Whorl
-Straight Hair
-Red Hair
-Not Premature Grey
Dominant
-Widow's Peak
-Hair Whorl (Clockwise)
-Curly Hair
-Non Red Hair
-Premature Grey