How can an organism exhibit a trait not passed by either parent?
2007-11-14 14:02:07 · 7 answers · asked by babe 2 in Science & Mathematics ➔ Biology
The organism is exhibiting a recessive trait from a recessive gene from the ancestors of his or her's parent, or its ancestors.
2007-11-14 14:06:14 · answer #1 · answered by dd 4 · 1⤊ 0⤋
If it's a recessive gene.
For example, say Green eyes (represented by A) is dominant and yellow eyes (represented by a) is recessive.
If you breed 2 heterozygous organisms with green eyes (Aa x Aa) you would get the punnett square:
AA Aa
Aa aa
3/4 would exhibit the phenotype green eyes.
1/4 would exhibit the phenotype yellow eyes.
2007-11-14 22:13:10 · answer #2 · answered by violingirl7777 3 · 0⤊ 0⤋
If the trait is affected by more than one gene, or the environment, such as hair color.
2007-11-14 22:28:34 · answer #3 · answered by BP 7 · 0⤊ 0⤋
like dd said it chould skip geneations... for example every third generation a child is color blind
2007-11-14 22:09:40 · answer #4 · answered by ititit3 2 · 0⤊ 0⤋
a new variant in DNA chromosomes
2007-11-15 05:08:38 · answer #5 · answered by COOL!!!!!!!!!!!!! 2 · 0⤊ 0⤋
Mutation...?
2007-11-14 22:05:55 · answer #6 · answered by stall 3 · 0⤊ 0⤋
because its recessive
2007-11-14 23:47:44 · answer #7 · answered by Anonymous · 0⤊ 0⤋