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Genotypes are written differently depending on what gene you are referring to.

A capital letter means that allele is dominant over an allele written with a lower case letter. For example B is dominant over b.

Some genotypes are written using a superscript, such as IAIB for the genotype of a person with blood type AB. Or HbsHbs for a person with sickle cell anaemia (compared to HbSHbS for a person without sickle cell). In this case Hb stands for haemoglobin.

Usually the letters chosen relate to the trait involved... for example, if talking about tall plants T would be used to represent the tall allele and t would represent the short allele.

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10y ago
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13y ago

By using a very, very, very long string of 2'-deoxy nucleotide bases.

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11y ago

You would just write in complete sentences your observations of the organism.

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12y ago

It would be a uppercase letter and a lower case letter. Like Bb or Ff for example.

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13y ago

With two CAPITAL LETTERS or with two lowercase letters, Ex. AA or aa; BB or bb, The prefix "Homo-" comes from the Latin word for same, so same letter type representation.

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11y ago

If A is the dominant allele, then a homozygous dominant genotype would be AA.

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10y ago

I would be AA or BB, homo meaning of the same and the dominant being capital letters if I remember correctly.

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Q: How do you write the genotype for a trait?
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Related questions

What is the genetic composition determining a trait?

Genotype is the genetic makeup of a trait.


What contains a dominant trait and a recessive trait?

Genotype


Is a genotype?

A genotype is an organism's combination of genes that forms a trait.


What a genotype?

A genotype is an organism's combination of genes that forms a trait.


How can a person's genotype for a trait be determined from his or her phenotype for the trait?

hk.bjhjb


How can a person genotype for a trait be determined from his or her phenotype for the trait?

hk.bjhjb


Is a gene a genotype that is not mixed?

No. A gene is a part of the DNA that identifies the outcome of a certain trait or part of a trait. A genotype is the actual definition of the gene for each individual.


What is responsible for an acquired trait?

Genotype


What is the genotype of a man who has sickle cell trait?

rr since sickle cell is a recessive trait.


What is the expression of a trait and is determined by the combination of alleles?

The expression of a specific trait in an individual (such as hair color) is determined by two factors,one from each parent. These factors are represented with an uppercase letter for a dominantfactor and a lowercase letter for a recessive factor. The combination of these factors determineshow that trait will be expressed in an individual.


Are phenotype and genotype traits the same?

Phenotype and genotype traits don't always have to be the same. Phenotype is the physical characteristics and genotype is the genetic makeup. For example a pea plant can have the genotype of TT and look tall while another plant can have a genotype of Tt and also look tall (T= dominant trait; t= recessive trait.)


When can the phenotype tell you genotype of a trait?

The phenotype can tell the genotype when the characteristic is recessive and is displayed in the individual.