Human height, eye color, and skin color are all traits controlled by...?

Question

Can you complete the sentence for me?

Answer 1

Polygenic inheritance. This means that there isn't one gene that codes for them, but 2 or more.

Answer 2

As is true for almost everything about humans that can be measured (also known as biometrics) these three are controlled by two factors: genetics and environment (sometimes known as "Nature and Nurture"). While all three are influenced by both, the amount of influence of each varies. Height is controlled by both - while a person may have a family history of tallness, if they have a poor diet (especially a shortage of calcium in childhood) compared to their parents, they are very likely going to be shorter. If that person has a more nutritious diet than their short parents, they are very likely to be taller. Once the person becomes an adult, their height changes little. In contrast, eye colour is almost entirely due to genetics. I only say "almost" because while I haven't heard of it being performed successfully, I am sure that there must be some combination of foods that would at least slightly alter the colour of someone's eyes. On a temporary basis, there are slight changes in eye colour due to dilation/constriction of the capillaries in the iris. Blue eyes become violet, green eyes appear to be hazel. Skin colour starts as being entirely controlled by genes, but is readily affected by the environment. Most people's skin darkens after exposure to the Sun (or any other source of ultraviolet radiation). Also skin colour can be altered by eating certain foods - for example the skin of chickens that have a lot of marigold flowers in their diet show a yellow tint (while most people don't eat marigolds I'm sure it would have the same effect). Also a yellow tint is a symptom of liver failure (also known as jaundice).

Answer 3

...genes in DNA.
Traits in any living thing is determined by genes.
A gene is made from 3 combinations of the following nitrogen bases...adenine(A), guanine(G), thymine(T), and Cytosine(C).
Only A and T can match up. Same with G and C.
3 of those matches in a row create a single protein like elastin which is in your cheeks, cartilage which is in your nose and ears,
the amount of pigment your cells create which determines you skin color.
Eye color is the only complicated one. There is only 2 genes for eye color, brown and blue. However, 7 alleles(genes) for eye color. A combination of dormant brown eye traits and recessive blue eye traits. It's simple, they more dominant traits you have, the browner your eyes are. The, more recessive traits you have, the bluer your eyes are.
But in order to go in more detail you must understand 10th grade biology. In which you would understand trait dominance, punit squares, mitosis, meiosis, and more.

Plus, to say if both parents are tall, have brown eyes and hair then you get them would be conpletly incorrect unless both parents were homozygous for those traits(meaning their DNA only has the code for brown eyes and long bones) However if someone's parents were heterzygous. Meaning there cells have the codes for making say, brown and blue eyes.
Rr would be how its expressed.
The dominet brown eyes would show over the blue eyes, shown as a R. While the recessive trait for blue eyes
(shown above as r) would be covered by the brown eyes and ther offspring could get the traits for the blue eyes instead.

Answer 4

Genes

Answer 5

The word you are looking for is: genes. Genes are passed down from parents to their offspring.

Answer 6

genetics-both parents brown eyes, you have brown eyes, both parents tall, your tall same goes for most other features

Answer 7

the actual combination of alleles of an organism is

Answer 8

genetic inheritance. i think...

Answer 9

**GENES**