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What are dominant alleles?
Is one whose trait always shows up in the organism when the allele is present
Capacity of one allele to suppress the expression?
A dominant allele will express itself if present, and will suppress the recessive allele's expression.
What is the term for an allele that is not expressed in the phenotype of a heterozygous individual?
incomplete dominance source: PH Bio textbook
What name is given to an allele which controls the development of a characteristic even when it is present on only one of the chromosomes?
Homozygous
What is the allele which is overuled?
The two types of alleles are dominant and recessive. The recessive allele will still be present but the recessive trait is not usually seen. However, is not always overruled. In the cases of codominance and incomplete dominance, the recessive trait still shows through some of the dominant one.
What does dominate mean in DNA?
A dominant allele is one that will always be expressed when present.
What are dominant alleles?
Is one whose trait always shows up in the organism when the allele is present
Capacity of one allele to suppress the expression?
A dominant allele will express itself if present, and will suppress the recessive allele's expression.
What is the term for an allele that is not expressed in the phenotype of a heterozygous individual?
incomplete dominance source: PH Bio textbook
What gene is masked if it is paired with a dominant gene?
The different forms of a gene are called alleles. In Mendelian genetics, a gene has a dominant allele and a recessive allele. The dominant allele masks the recessive allele if present. So there are two possible dominant genotypes: homozygous dominant, in which both dominant alleles are present; and heterozygous, in which one allele is dominant and the other allele is recessive. The only way to express a recessive trait is to have the homozygous recessive genotype.
If and individual has one dominant allele and one recessive allele will the recessive allele show up?
YES ALWAYS!!! Even if you have for example, Aa (A being the dominant allele and a being the recessive allele) that trait will always be dominant!
What name is given to an allele which controls the development of a characteristic even when it is present on only one of the chromosomes?
Homozygous
Why is only one character seen in the first filial generation?
because the dominant allele usually masks the other allele present in the combination (one from each parent)
What is the allele which is overuled?
The two types of alleles are dominant and recessive. The recessive allele will still be present but the recessive trait is not usually seen. However, is not always overruled. In the cases of codominance and incomplete dominance, the recessive trait still shows through some of the dominant one.
Is it true that if neither parent possesses a functional allele a child will always have PKU?
True you need at least one functional allele
Is an allele that produces a trait in the heterozygous condition recessive?
No. A recessive allele will not be expressed phenotypically in the heterozygous state. A recessive allele can only be expressed phenotypically in the homozygous state.
What type of allele causes huntington disease?
The allele that causes Huntington's disease is dominant. This means that there only needs to be one present in the gene for it to show in the person's phenotype.
