How many dominant alleles I needed for an expression of a dominant phenotype

2 answers:

6 0

If the organism has regular dominance, It can be one or two because it could be homozygous dominant(AA) or heterozygous(Aa)
If the organism has incomplete dominance or co-dominance it can only be Homozygous Dominant (AA)

victus00 [196]4 years ago

5 0

Hello,

The answer is "two".

Reason:

The number needed to have a dominate allies is two. You need two allies in order to have a relationship that helps form the genes and also the phenotype which is the physical features of a organism therefore the answer is two!

If you need anymore help feel free to ask me!

Hope this helps!

~Nonportrit

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Constructing phylogenies is not as simple as grouping organisms with similar characters together. Identify situations in which s

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Answer

similar characters evolved owing to convergent evolution; similar characters are ancestral

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Convergent evolution happens when two organisms belonging to different species, living at different times or different continents but the same biome develop analogous structures hence making them appear similar. The analogous structures were not present in the known ancestors of both groups.

Therefore convergent evolution is ignored during constructing phylogenies

Also similar characteristics that are ancestral are ignored.

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