A man inherits dominant allele for the trait from father and recessive allele from mother. what trait will this man expressed which alleles will his sperm cell contain??

Explanation:

The dominant trait, since he has a dominant and a recessive allele.

Sperm cells are haploid, meaning contains only one of the two alleles available, in a random fashion.  Therefore on the average, half of his gametes (sperm cells) will have the dominant allele, and the other half will have the recessive allele.  

the correct answer is option d.

an appositive is a noun, noun phrase or noun clause which follows another noun or noun phrase in order to describe it or name it another way. they are usually used between commas, brackets or dashes.

the example sentence with the correct use of commas is the following:

her uncle, the man over there in the red shirt, owns the hardware store in town.