How do you find out if variation is genetic or environmental?

Answer 1

both, for example eye colors are caused by our gene( small prtion of DNA with control prticular characterstics.

but some things such as our wight is cUSD BY enviormental factors. because the amount of for we eat effects our weight. and somethings such as height are effected by both lets say your parents are both tall so you and ur brother are most likely to be tall but you brother dosent drink his milk and doesn't eat his vegitabels so he doesn't grow as much as u do in which eat ur vegis and drink lots of milk.

hope i helped :)

Answer 2

Picture this, a brand new island forms off the coast of Iceland in 1963 as the result of an undersea volcanic eruption. After only a few months, the landscape created was so varied and mature that it was almost beyond belief. This is an amazing factual description of then, brand new island of Surtsey off the coast of Iceland and all the scientists were amazed at what they saw happening there from the first days of its existence.

What these men and women encountered was nothing less than miraculous from their evolutionary perspectives. There were wide sandy beaches, gravel banks, impressive cliffs, soft undulating land, gullies and channels. There were boulders worn by the surf, some of which were round, sitting on an abrasion platform cut into the cliff, and all of this despite the extreme youth of the island.

The geologist's surprise is understandable; given the modern thinking that young Surtsey's 'varied and mature' features ought to have needed long periods of time - millions of years to form.

Anyone with 'a millions of years' starting point will be 'astonished' when viewing Surtsey and according to a January 2006 article in the New Scientist, Surtsey continues to surprise. 'The island has excited geographers who marvel that canyons, gullies and other land features that typically take tens of thousands or millions of years to form were created in less than a decade.'

Answer 3

By applying T- test statistically, the variations found in the populations can be screened. If the results are found significant at 5% probability level, it is due to genetic factor, if not significant, than it is due to environmental factors.

Answer 4

Aside from epigenetic phenomenon only genetic variability is heritable and you would see some of this, in the germ line, by it's appearance in the progeny.

Answer 5

Contineous variation in broad sense is gentic but indirectly can also be influenced by environment

Answer 6

well personality isn't inherited its more of something you develop do to people you are around and things you are around at your developmental stages which is usually around 2 and up.

Answer 7

tiffin

Answer 8

No