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2. In a certain fish, blue scales (BB) and red scales (bb) are codominant. When a fish has the
hybrid genotype, it has a patchwork of blue and red scales. (Use the letter B)
a. What is the genotype for blue fish?
b. What is the genotype for red fish?
c. What is the genotype for patchwork fish

2 In a certain fish blue scales BB and red scales bb are codominant When a fish has the hybrid genotype it has a patchwork of blue and red scales Use the letter class=

Respuesta :

samueladesida43

Answer:

a) BB

b) bb

c) Bb

Explanation:

Co-dominance is a type of non-mendelian genetic inheritance in which two alleles of a gene are neither dominant nor recessive over one another, hence, they form an hybrid offspring that simultaneously exhibits the traits encoded by both alleles. This is the case of the scale color gene in a certain fish. The allele for blue scales (B) and allele for red scales are codominant. Hence, they produce an hybrid with a patchwork of both blue and red colours.

Therefore, a fish with blue scale color will possess an homozygous genotype of the blue allele: BB while a fish with a red scale color will possess an homozygous genotype of the red allele: bb. Since the patchwork fish is an hybrid or heterozygous, it will contain a combination of the blue and red alleles i.e. Bb.

Because both alleles (red and blue) are codominant, both traits encoded by both alleles will be expressed at the same time in the hybrid organism (patchwork fish).

luisvaschetto

The genotype for bluefish is 'BB', the genotype for red fish is 'bb' and the genotype for patchwork fish is 'Bb'.

In genetics, codominance occurs when both 'alleles' are expressed in heterozygous individuals.

Thus, for a given trait that exhibits codominance, the phenotypes of both parents are simultaneously expressed in the offspring.

In this case, both 'B' allele and 'b' allele are expressed in patchwork fish.

Conversely, complete dominance occurs when one allele referred to as 'dominant' completely masks the expression of another allele of the same gene, which is referred to as 'recessive'.

In conclusion, the genotype for bluefish is 'BB', the genotype for red fish is 'bb' and the genotype for patchwork fish is 'Bb'.

Learn more in:

https://brainly.com/question/10239875?referrer=searchResults

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