Question

PLEASE ANSWER FAST.
John has two sisters and two brothers. Three of the five children in the family have dark brown hair, one has red hair, and one has light brown hair. The variation in hair color is due to the input of multiple genes. What pattern of inheritance is exhibited here?
Polygenetic inheritance
Co-dominance
Pleiotropy

Answer 1

Which do you think it is?

Answer 2

I have no idea

Answer 3

(Also, this is a question for one of the Science sections)

Answer 4

oh i forgot i was in math
my bad ;-;

Answer 5

It's okay(:

Answer 6

we can ask @john

Answer 7

What you think @john?

Answer 8

I have to assume it is A

Answer 9

Polygenetic- polygenic inheritance (multifactorial inheritance; quantitative inheritance) The determination of a particular characteristic, e.g. height or skin colour, by many genes (polygenes), each having a small effect individually. Characteristics controlled in this way show continuous variation.

Co-dominant - Codominance is a relationship between two versions of a gene. Individuals receive one version of a gene, called an allele, from each parent. If the alleles are different, the dominant allele usually will be expressed, while the effect of the other allele, called recessive, is masked.

Pleiotropy- the production by a single gene of two or more apparently unrelated effects.

Answer 10

You guys are not supposed to give direct answers.

Answer 11

agreed