Phenotype is the _________ characteristics of an organism.
_________ are alternative forms of gene, and they are responsible for difference in the phenotypic expression of a given trait.
In a sex-linked recessive disease, it is usually who are affected because they have a _______ copy of X chromosome that carries the mutation.
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Answer:
1. Observable.
2.Alleles
3.Abnormal
Explanation:
hi,i'm not sure po sa number 3 pero sana nakatulong! GOODLUCKK!