2006-10-24 08:53:09 · 10 answers · asked by bl0ndeambiti0n9 1 in Science & Mathematics ➔ Biology
It would be a recessive gene that both parents carry. For example, two brown eyed parents could have a blue eyed baby if both parents carried the blue recessive gene.
2006-10-24 09:01:28 · answer #1 · answered by flowergirl 2 · 0⤊ 1⤋
If you mean show as in a trait like red hair that none of your relatives have - the trait could be a recessive gene. Dominant genes will express themselves physically more so than recessive genes. For example - eye color. Brown is a dominant gene over blue which is a recessive gene. If one parent has blue eyes and another has brown, 3 out 0f 4 children will have brown eyes.
2006-10-24 09:09:12 · answer #2 · answered by Wooshy 1 · 0⤊ 0⤋
Because it might be a recessive trait belonging to both of your parents and wouldn't show up until the gene carrying it is passed along to you by both of them, thereby making it dominant in you.
2006-10-24 09:01:41 · answer #3 · answered by marklemoore 6 · 0⤊ 0⤋
Every time two people mate it is a crap shoot as to which genes will be passed on. If the gene is recessive it may not show up until a different gene is present.
2006-10-24 09:02:23 · answer #4 · answered by mikey 4 · 0⤊ 0⤋
Yes, a recessive gene may pop up and be seen. It may have been noticeable in relatives from previous generations that are no longer around for you to see it.
2006-10-24 09:02:30 · answer #5 · answered by Goldenrain 6 · 0⤊ 0⤋
could also be a gene passed through females, since females have one extra complete set of sex linked genes and males do not, so you never know when it is going to show up. for example, a male has brown hair and his wife has brown hair as well. actually, all of their brothers and sisters and mothers and fathers have brown hair as well. but they have a blonde child. it is a fact that the blond child got its gene from the mother, becuase she had the extra gene that was not expressed and no one knew what it was until they had a blond child. next child they have could be brunette. depending on which gene she passes on to her child. (assuming the blonde gene is dominant in this senario.)
2006-10-24 09:04:56 · answer #6 · answered by chelley 2 · 0⤊ 0⤋
Genes go back multiple generations. It is possible your great-great something had it long ago without your family knowing it.Especially now with families crossing boundaries and races.
2006-10-24 09:03:08 · answer #7 · answered by Chewy B 2 · 0⤊ 0⤋
Micro-evolution, which is the process of small changes within a species over time, allows for such anomalies. Most creationists are micro-evolutionists. (Macro-evolution is a different theory.)
2006-10-24 08:56:02 · answer #8 · answered by Zebra4 5 · 0⤊ 0⤋
Because of the evolution of the species
2006-10-24 09:00:54 · answer #9 · answered by arpalu69 1 · 0⤊ 0⤋
recessive genes - sit idly for generations - then appear seemingly randoly.
2006-10-24 09:02:12 · answer #10 · answered by trlrpkgirl 3 · 0⤊ 0⤋