30 points 1. an organism that has only dominant genes or only recessive genes is considered homozygous. a red plant that is rr is homozygous. how many of the above organisms are homozygous? 2. an organism that has both dominant and recessive genes is considered heterozygous. a red plant that is rr is heterozygous. how many of the above organisms are heterozygous?

Hello.

1. An organism that has only dominant genes or only recessive genes is considered homozygous. A red plant that is RR is homozygous. An organism that has bothdominant and recessive genes is considered heterozygous. A red plant that is Rr is heterozygous.

2. Heterozygous means that an organism has two different alleles of a gene. For example, pea plants can have red flowers and either be homozygous dominant (red-red), or heterozygous (red-white). If they have white flowers, then they are homozygousrecessive (white-white). Carriers are always heterozygous.


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