Do two alleles make a genotype?

Is a genotype two alleles?

Each pair of alleles represents the genotype of a specific gene. For example, in sweet pea plants, the gene for flower color has two alleles. … A particular genotype is described as homozygous if it features two identical alleles and as heterozygous if the two alleles differ.

How many genotypes does 2 alleles have?

With 2 alleles, the number of genotypes is 1 + 2 = 3.

Do two alleles make a gene?

An allele is one of two or more versions of a gene. An individual inherits two alleles for each gene, one from each parent. If the two alleles are the same, the individual is homozygous for that gene. If the alleles are different, the individual is heterozygous.

Are alleles on the same chromosome?

An allele is one of two, or more, versions of the same gene at the same place on a chromosome. It can also refer to different sequence variations for several-hundred base-pair or more region of the genome that codes for a protein. Alleles can come in different extremes of size.

How many genotypes can be produced by two alleles A and A?

Genotype is also used to refer to the pair of alleles present at a single locus. With alleles ‘A’ and ‘a’ there are three possible genotypes AA, Aa and aa.

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Can two organisms have different phenotypes but the same genotype?

Due to the presence of a dominant allele, the same phenotype but distinct genotype is possible. A dominant allele always expresses itself when it is present in the genotype. … Therefore, there will be no phenotype distinction. This phenomenon is observed in all organisms, including plants.