What allele will always show up?

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

Which alleles are always visible?

When two different alleles are present they interact in specific ways. For the traits included in this activity, the alleles interact in what is called a dominant or a recessive manner. The traits due to dominant alleles are always observed, even when a recessive allele is present.

Which allele will always show up because it masks or hides the other allele?

If the two alleles are different, the plant is said to be a hybrid or heterozygous for that trait. As Mendel noted, when both alleles are present, one allele masks or hides the other. The stronger allele is said to dominant, and the weaker allele that is masked is said to be recessive.

What type of allele can be hidden?

6th grade Chapter 4 Science Review

an allele that can be masked, or hidden, by tht presence of another allele is classified as recessive
both alleles influence the phenotype, causing a blended appearance incomplete dominance
an organism that has two different alleles for a particular trait hybrid

When two alleles are the same they are?

Genotypes are described as homozygous if there are two identical alleles at a particular locus and as heterozygous if the two alleles differ. Alleles contribute to the organism’s phenotype, which is the outward appearance of the organism.

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Which allele is always written first?

The alleles are represented by letters. The letter chosen is usually the first letter of the trait.

What are the 5 patterns of inheritance?

There are five basic modes of inheritance for single-gene diseases: autosomal dominant, autosomal recessive, X-linked dominant, X-linked recessive, and mitochondrial. Genetic heterogeneity is a common phenomenon with both single-gene diseases and complex multi-factorial diseases.

Can a dominant allele be hidden?

One allele for every gene in an organism is inherited from each of that organism’s parents. … The dominance or recessivity associated with a particular allele is the result of masking, by which a dominant phenotype hides a recessive phenotype.

What traits are considered hidden or masked?


Question Answer
Recessive trait The form of a trait that is hidden or masked; represented by a small letter
Genotype The genetic makeup of an organism; represented by a 2-letter code
Phenotype The way an organism looks or behaves; determined by its genotype
All about hereditary diseases