If there are 3 different alleles for a particular gene in a population of diploid organisms, how many different genotypes are possible in the population

Let’s call them allele A, allele B and allele C. A diploid organism always has 2 alleles, which can be equal or different. So you can figure out these posible combinations: AA, AB, AC, BB, BC, CC (please note that AB = BA, so that counts as 1 genotype; the same with AC = CA, BC = CB). So there are 6 different posible genotypes. Besides, this doesn’t mean there are 6 phenotypes – you will have to gather information about dominance to see which phenotype is produced by each genotype (there are usually less phenotypes than genotypes).

hi there!

answer: b. nucleolus

explanation: nucleolus is a structure in the nucleus are ribosomes are made.

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-charlie

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