created by randomness?

i just saw the most beautiful eyes of any human being ive ever seen. on the bus just now. 2 girls. preschoolers. beautiful beautiful eyes. i couldnt take my eyes off them. i would have taken a snapshot had the mother not looked murderous.

they had fantastic skin tone, marvellous hair colour lovely features. one look, and you’d know these kids were of mixed blood. their mother didnt look local. i think she’s sri lankan. the kids had her double skin. and…. thats abt it. her hubby wasnt there. but he’s probably a caucasian. the nice features came from the father. the eye colour, hair colour, etc……

the elder sis had darker skin then the younger one. the elder sis wasnt as dark as the mother, but it just appearer that the younger one had more of her father’s skin genes. both the girls had their father’s eyes. the younger one had more of her mother’s hair, while the elder one must have had more of her father’s hair genes.

isnt it amazing how the genes get swapped and mixed and all scientists can come up with is RANDOM?

(sec 3s, you’ll learn this next yr. then, i will attempt to explain why some ppl have 50% of their father’s and 50% of their mom’s features, or why it’s 75-25%, or why you look at someone and say, “you look exactly like you mom/dad”. and what you will learn is the most simplest theory as to why this phenomenon occurs. but this subject area is THE most diverse area one can ever read abt. because it IS the reason why life exists the way it exists. and believe me, scientific explanation is not going to be enough, should you decide to question the depths.)

talk abt continous and discontinous variation. the kids’ skin tone, hair colour: continous variation. meaning, there’s a range of phenotypical features that you can observe. something like height. you dont have all the ppl of the world divided into only 1.8m and only 1.5m tall right. you have a range. thats continous variation.

but eye colour on the other hand is discontinous. it’s either this or that. sure, you can ask, “but there’s light brown and dark brown, there’s blue and blue-green and green… ” but, you dont get a continous range of colours.

sounds confusing? ya, well…… simply put, continous variation means environmental factors can affect the outcome. discontinous means, it cant. your eye colour cant be decided by environmental factors. it is whatever your genes says it is…. ya…

so anyway, thats just the beauty of life. you are made up of your mom and dad’s genes. you mate and your offspring is made up of you and your spouse. and their offspring is made up of their genes. and because these genes are mixed up so randomly, your grandchild may look exactly like you, or may have some of your features, or look nothing like you…..

so what happened with the twins of different colour? genetists say it goes’s like this. the mother and father themselves were mixed. the mother’s mom and the father’s mom were white. whereas the mother’s dad and the father’s dad were black. so one kid got the dark genes from the grandfathers while anothe kid got the white genes from the grandmothers… amazing isnt it!!!!

I LOVE BIO! its beautiful!

~ by misspegasus on October 20, 2007.