Thomas’s biological mother and father are both gifted athletes. he was adopted by a couple who had no interest in him being involved in sports. although thomas likely inherited athletic ability, it was never expressed in his alleles phenotype genotype genes

phenotype

Explanation: phenotype is the expression of a particular gene.

Phenotypic expression can be masked by the effect of some environmental factor while some under favourable condition manifest themselves. For Thomas not to have expressed the genes despite the fact that he might have inherited it means his environment ( the adopted parent who have no interest in athlete) is playing a key role in supressing the expression of the traits. Until he finds an enabling environment the traits cannot find expression.

the cytokine-activated janus kinase (jak)-signal transducer and activator of transcription (stat) pathway has an important role in the control of immune responses. dysregulation of jak-stat signaling is associated with various immune disorders.

d. in sexual reproduction, offspring have more chromosomes than

either parent.

asexual reproduction results in offspring which are genetically the same as the parent organism (not counting a rare mutation). sexual reproduction produces a random mixture of the genetics derived from both parents

explanation: