2007-01-04 05:01:06 · 3 answers · asked by sweet-chic 1 in Science & Mathematics ➔ Biology
a gene may be either recessive or dominant. A gene just controls the construction of a certain protein. If it does create the protein it is dominant. If it does not is recessive. Some medical conditions need one gene to produce a certain effect. Some require two.
2007-01-04 05:06:51 · answer #1 · answered by sweetienugent 2 · 0⤊ 0⤋
A recessive gene controls its corresponding trait, just like a dominant gene does. Dominant/recessive just refers to which one gets expressed over the other in a heterozygous person, animal, whatever. Unless you get into incomplete, codominance, etc.
2007-01-04 13:10:10 · answer #2 · answered by NML 1635 3 · 0⤊ 0⤋
the recessive gene doesn't appear the character unless it is paired and pure
i.e the dominant gene must be completely absent
2007-01-04 13:09:11 · answer #3 · answered by Diamond 2 · 0⤊ 0⤋