Which is an example of a heterozygous pair?

If the two versions are different, you have a heterozygous genotype for that gene. For example, being heterozygous for hair color could mean you have one allele for red hair and one allele for brown hair. The relationship between the two alleles affects which traits are expressed.

What are heterozygous pairs?

A gene pair having different alleles in the two chromosome sets of the diploid individual for example, Aa or, A1A2.

What are 3 heterozygous examples?

As a second example of a heterozygous trait, consider human blood types. The three allele possibilities are types A, B and O. A and B are codominant; O is recessive. The heterozygote AO gives type A blood, while BO gives type B blood.

Is TT a heterozygous trait?

If an organism has two different alleles (Tt) for a certain gene, it is known as heterozygous (hetero means different).

Genotype and Phenotype.

Genotype Definition Example
Homozygous Two of the same allele TT or tt
Heterozygous One dominant allele and one recessive allele Tt

Is BB An example of heterozygous?

An organism with one dominant allele and one recessive allele is said to have a heterozygous genotype. In our example, this genotype is written Bb. Finally, the genotype of an organism with two recessive alleles is called homozygous recessive.

What does heterozygous look like?

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 homozygous recessive (white-white).

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What is heterozygous example?

If the two versions are different, you have a heterozygous genotype for that gene. … For example, being heterozygous for hair color could mean you have one allele for red hair and one allele for brown hair. The relationship between the two alleles affects which traits are expressed.

Is curly hair heterozygous?

Individuals with curly hair are homozygous for curly hair alleles. … Individuals who are heterozygous, with one of each allele have wavy hair, which is a blend of the expressions of the curly and straight hair alleles. Blood Typing/ Multiple Alleles. A number of human traits are the result of more than 2 types of alleles …

Why do we write TT in genetics?

the genes present in the DNA of an organism. We will use a pair of letters (ex: Tt or YY or ss, etc.) to represent genotypes for one particular trait. … When the GENOTYPE is made up of one capital letter & one lowercase letter (ex: Tt) it’s called HETEROZYGOUS (“hetero” means “other”).

What type of trait always shows up when present?

Dominant – An allele whose trait always shows up in the organism when it is present.

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