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Dominance

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11y ago

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In mendels experiment a trait that always disappeared in the f1 generation but reappeared in the f2 generation was called the?

recessive trait


If and individual has one dominant allele and one recessive allele will the recessive allele show up?

No, the dominant allele will be expressed in the individual's phenotype, masking the presence of the recessive allele. The recessive allele will only be expressed if an individual inherits two copies of the recessive allele.


When does a recessive trait dominant over a dominant trait?

A recessive trait cannot be dominant over a dominant trait. Dominant traits are always expressed over recessive traits in heterozygous individuals because they mask the expression of the recessive trait.


Which genes are dominant and which are recessive?

Dominant genes are always expressed in preference to recessive genes in cased where both genes are present.


What kind of trait always appears in the offspring produced in Mendels first experiment?

Dominant


How do genetics represent h dominant and Recessive allele?

A dominant genotype is represented as DD or Dd but with many different letters. The DD is a homozygous dominant, while the Dd is the heterozygous dominant. Recessive is always represented as dd or rr or whatever letter you want to use. It is always homozygous recessive. There can never be a heterozygous recessive.


What will always hide a recessive trait?

A dominant trait will always hide a recessive trait in an individual's phenotype because the dominant allele is expressed over the recessive allele in the presence of both alleles.


What is dominant recessive?

There is dominant and there is recessive. There is no dominant recessive. A dominant gene will always be expressed when present, such as in the homozygous dominant genotype (RR), or heterozygous genotype (Rr). A recessive allele is only expressed when the genotype is homozygous recessive (rr).


What is the difference between dominant alleles and recessive alleles?

dominant-appears in first generation recessive-seems to dissapear


What is recessive and dominant mean?

I am pretty sure the recessive and dominant alleles you are talking about are covered in Biology. Recessive alleles are basically alleles that are received from both parent's DNA that are carries, (dd). However, dominant alleles are (exactly what it says) always expressed. If there is one dominant allele and one recessive allele the dominant allele overpowers the recessive. (DD) and (Dd)overpowers (dd).


What is the difference between dominant and recessive gene?

There are no such things as dominant and recessive genes. There are only dominant and recessive alleles. Dominant alleles are parts of a gene that present its features over the recessive allele, which is the one that is always masked by the dominant allele. The recessive allele's trait only shows if both of the alleles in a trait are recessive.


If an individual expresses a dominant disease will the children always inherit the disease?

Not always. It depends if the individual is a hybrid- meaning they have both the dominant and the recessive gene. They can pass on the recessive gene instead of the dominant one, and assuming the other parents also passes on the recessive gene, the child will not inherit the disease.