What is the word that means outward expression of allel or alleles?

​Trait. ... The genetic contribution to a trait is called the genotype. The outward expression of the genotype is called the phenotype.

1. What is the expression of alleles called?
2. What describes the outward expression of an allele combination?
3. What is the term for an allele that masks the expression of the other allele?
4. What is the term heterozygous mean?
5. Are genotypes the outward expression of an allele combination?
6. Is PP genotype or phenotype?
7. Is black skin dominant or recessive?
8. What is epistasis example?
9. What is meant by the term recessive allele?
10. Is an allele a genotype?
11. Why do recessive alleles seem to vanish in some generations and reappear in later generations?
12. What is the genotype of RR?
13. What is a genotype and phenotype?
14. Can As marry as?
15. Can As marry AA?
16. Would pp be purple?

What is the expression of alleles called?

​Codominance

= Codominance is a relationship between two versions of a gene. Individuals receive one version of a gene, called an allele, from each parent. If the alleles are different, the dominant allele usually will be expressed, while the effect of the other allele, called recessive, is masked.

What describes the outward expression of an allele combination?

Describes the outward expression of an allele combination. A phenotype that is the most common expression of a particular allele combination in a population. May be dominant or recessive. A phenotype that is a variant of a gene's expression that arises when the gene undergoes a change.

What is the term for an allele that masks the expression of the other allele?

When one of the alleles of a heterozygous pair masks the presence of another, recessive allele, it is known as a dominant allele.

What is the term heterozygous mean?

(HEH-teh-roh-ZY-gus JEE-noh-tipe) The presence of two different alleles at a particular gene locus. A heterozygous genotype may include one normal allele and one mutated allele or two different mutated alleles (compound heterozygote).

Are genotypes the outward expression of an allele combination?

Mendel's law of segregation states that the two alleles of each gene are packaged into separate gametes. Genotypes are the outward expression of an allele combination.

Is PP genotype or phenotype?

There are three available genotypes, PP (homozygous dominant ), Pp (heterozygous), and pp (homozygous recessive). All three have different genotypes but the first two have the same phenotype (purple) as distinct from the third (white).

Is black skin dominant or recessive?

Inheritance of Skin Color

Each gene has two forms: dark skin allele (A, B, and C) and light skin allele (a, b, and c). Neither allele is completely dominant to the other, and heterozygotes exhibit an intermediate phenotype (incomplete dominance).

What is epistasis example?

An example of epistasis is the interaction between hair colour and baldness. A gene for total baldness would be epistatic to one for blond hair or red hair. The hair-colour genes are hypostatic to the baldness gene. The baldness phenotype supersedes genes for hair colour, and so the effects are non-additive.

What is meant by the term recessive allele?

Recessive refers to a type of allele which will not be manifested in an individual unless both of the individual's copies of that gene have that particular genotype.

Is an allele a genotype?

Different forms of a gene are called alleles. ... The alleles an individual has at a locus is called a genotype. The genotype of an organism is often expressed using letters. The visible expression of the genotype is called an organism's phenotype.

Why do recessive alleles seem to vanish in some generations and reappear in later generations?

Recessive alleles seem to vanish in some generations and reappear in later generations because they are masked by a dominant allele....

What is the genotype of RR?

The (RR) genotype is homozygous dominant and the (rr) genotype is homozygous recessive for seed shape. In the image above, a monohybrid cross is performed between plants that are heterozygous for round seed shape. The predicted inheritance pattern of the offspring results in a 1:2:1 ratio of the genotype.

What is a genotype and phenotype?

The genotype–phenotype distinction is drawn in genetics. "Genotype" is an organism's full hereditary information. "Phenotype" is an organism's actual observed properties, such as morphology, development, or behavior. This distinction is fundamental in the study of inheritance of traits and their evolution.

Can As marry as?

However, AS and AS should not marry because there is every chance of having a child with Sickle Cell Disease, while AS and SS shouldn't think of marrying. And definitely, SS and SS must not marry since there's absolutely no chance of escaping having a child with the sickle cell disease.

Can As marry AA?

If AA marries an AS. They can have kids with AA and AS which is good. In some cases, all the kids will be AA or all the kids may be AS, which limits their choice of a partner. AS and AS should not get married, there is the risk of having children with SS.

Would pp be purple?

the allele P (purple) is dominant. this means that if there are one or more alleles present in the genotype of the offspring (Pp or PP), the flower will be purple. ... the genotype PP would code for a purple phenotype.