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When the two alleles are both dominant?

When the two alleles are both dominant?

Now what co-dominance is, is when the heterozygous phenotype shows a flower with some red petals and some blue petals. So it’s when the two alleles are dominant together they are co-dominant and traits of both alleles show up in the phenotype.

Can two alleles be dominant?

Different alleles do not always produce equal outward effects or phenotypes. One allele can be dominant and mask the effect of a second recessive allele in a heterozygous organism that carries two different alleles at a specific locus.

What is dominant and recessive alleles?

Dominant refers to the relationship between two versions of a gene. Individuals receive two versions of each gene, known as alleles, from each parent. If the alleles of a gene are different, one allele will be expressed; it is the dominant gene. The effect of the other allele, called recessive, is masked.

What is meant by the term dominant allele?

Definitions of dominant allele. an allele that produces the same phenotype whether its paired allele is identical or different. synonyms: dominant.

What is a dominant allele called dominant?

A dominant allele is a variation of a gene that will produce a certain phenotype, even in the presence of other alleles. A dominant allele typically encodes for a functioning protein. The allele is dominant because one copy of the allele produces enough enzyme to supply a cell with plenty of a given product.

What does it mean if a trait or allele is dominant?

An allele is dominant if it masks the presence of other alleles. This means that if an organism has one allele of this type, it will show the characteristics of this trait.

What results when neither allele is dominant?

In heterozygous relationships where neither allele is dominant but both are completely expressed, the alleles are considered to be co-dominant. Co-dominance is exemplified in AB blood type inheritance. When one allele is not completely dominant over the other, the alleles are said to express incomplete dominance.

Are dominant alleles always the most common?

A widespread misconception is that traits due to dominant alleles are the most common in the population. While this is sometimes true, it is not always the case. For example, the allele for Huntington’s Disease is dominant, while the allele for not developing this disorder is recessive.

What traits are caused by dominant alleles?

Common Dominant Traits. There are fairly common dominant inherited human traits,known as inheritance patterns,within the human population,and some examples are listed below.

  • Long Eyelashes.
  • Dimples.
  • PTC Tasting.
  • Common Recessive Traits.
  • Color Blindness.
  • Five Fingers.
  • Being Single Jointed.
  • Tone Non-Deafness.
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