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BBK 2 ~ Heredity and Genetic Web Activity - Coggle Diagram
BBK 2 ~ Heredity and Genetic Web Activity
Heredity:
The passing on of traits and physical features from parents to their children.
Genes:
Sets of instructions in each human cell that determine inherited physical features and other traits. Dominant genes are strong and in control, whereas recessive genes are weaker.
Inherited Trait:
An inherited trait is a feature that you are born with
Learned Behavior:
A learned behavior is something you are taught or learn through experience.
Earlobe Attachment:
If earlobes hang free, they are detached. If they connect directly to the sides of the head, they are attached. Earlobe attachment is a continuous trait
Tongue Rolling:
Some people can curl up the sides of their tongue to form a tube shape. People can learn to roll their tongue as they get older, suggesting that environmental factors—not just genes—influence the trait.
Dimples:
Dimples are small, natural indentations on the cheeks. They can appear on one or both sides, and they often change with age.
Genetic Disorders:
Albinism, Angel Syndrome, Ankylosing spondylitis, Apert Syndrome, Charcot-Marie-Tooth disease, Congenital adrenal hyperplasia, Down Syndrome, etc.
Handedness:
Handedness describes our preference for using either our left or right hand for activities such as writing and throwing a ball.
Freckles are small, concentrated spots of a skin pigment called melanin. Most fair-skinned, red-haired people have them. Freckles are controlled primarily by the MC1R gene.
Freckles:
Curly Hair:
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.
Hand Clasping:
A trait that describes which thumb is on top when quickly folding and interlocking our fingers together.
Red/Green Colorblindness
Red-green colorblindness is caused by a single gene located on the X-chromosome. This gene codes for a protein in the eye that detects certain colors of light. When this gene is defective, the eye cannot differentiate between red and green.
Hairline Shape:
If your hairline forms a point at the center of the forehead, you have a widow's peak. If not, you have a straight hairline.
PTC Tasting:
To about 75% of us, the chemical PTC (phenylthiocarbamide) tastes very bitter. For the other 25%, it is tasteless.