How many different alleles make up a heterozygous gene pair?

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How many different alleles make up a heterozygous gene pair?

4 genotypes, right? I'm still not too sure.

2007-01-10 12:34:32 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Biology

3 answers

Heterozygous just means that the alleles for a trait don't match. Rr is heterozygous - it has two alleles, R and r.

RR is homozygous - it has two alleles, R and R.
rr is homozygous - it has two alleles, r and r.

I tell my students to remember that homo means same. We go with the m sound in the words. homozygous = same-o=zygous

2007-01-10 13:28:38 · answer #1 · answered by ecolink 7 · 0⤊ 0⤋

2.

one allele from the mother and one from the father.

2007-01-10 12:50:45 · answer #2 · answered by Seaweed G 4 · 0⤊ 0⤋

I would think four off the bat, but can you give me more info?

2007-01-10 12:41:01 · answer #3 · answered by wasnt_invited 1 · 0⤊ 1⤋