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ipn [44]
3 years ago
8

In ____, several sets of alleles control the phenotype and each dominant allele present codes for a product which has a quantita

tive and additive effect.
Biology
1 answer:
tatuchka [14]3 years ago
6 0

Answer:

Polygenic inheritance

Explanation:

Polygenic inheritance occurs when a genetic trait is regulated by more than one genes. All the alleles of these genes together determine the phenotype of the organism for the polygenic trait. Here, the phenotype is regulated by the total number of dominant alleles for all the genes that regulate a polygene trait.

For example, human skin color is a polygenic trait. The final phenotype depends on the total number of dominant alleles of all the genes that regulate the skin color in human.  

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Read 2 more answers
What is the expected phenotypic ratio for a cross between two individuals that are heterozygous for a given trait? Use one of Me
svetlana [45]

The expected phenotypic ratio for a cross between two individuals that are heterozygous for a given trait is 3:1.

<h3>What is Phenotype?</h3>

This is referred to the physical characteristics of an organism such as the size, shape etc.

When two heterozygous traits are crossed:

Rr ×  Rr ⇒ RR Rr Rr rr

The ratio is therefore 3:1 of the dominant to recessive phenotype.

Read more about Phenotype here brainly.com/question/22117

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