There are two answers to this question, depending on what you mean:
yes,as they get older they shall turn a bit yellow
Yellow Corn
Ground yellow corn is yellow corn that has been ground into meal or flour.
The phenotype (as I assume would be colour) for both homozygous and heterozygous yellow-grained corn is yellow.
yellow pop corn
corn
yes there is actually corn in corn syrup! it is made primarily of #2 yellow dent corn. this is processed and turned into cornstarch wich is then in turn made into corn syrup and other corn sweeteners
the difference is all in the color, white corn chips happen to be very white, while yellow ones happen to be a little more yellow. there have been many arguments about which type of corn chip is better, but for me i enjoy the yellow ones
The answer is corn or squash, because squash can sometimes be yellow but not all the time and corn is always yellow and it does not change color.
It depends on the variety. Yellow, white and bi-color (white and yellow) are the most common and are modern varieties. Corn can also be green, blue and multi-color (commonly called Indian corn) and even comes in multi-color pastels.
corn?
It is about 75% starch. Watch the movie King Corn, the people in it explain the difference between yellow dent corn and "sweet" corn. Also, this website has a graphical representation of the make-up of yellow dent corn: http://www.bungenorthamerica.com/news/pubs/03_Bunge_Milling_Process_Diagram.pdf