If a person has a recessive allele for a disorder and that allele is masked by the presence of a normal dominant allele, this personIf a person has a recessive allele for a disorder and that allele is masked by the presence of a normal dominant allele, this person:.

Is a carrier.

Explanation:

In genetic engineering, a carrier is simply describes an organism that carries two different forms (alleles) of a recessive gene (alleles of a gene linked to a recessive trait) and is thus heterozygous for that the recessive gene.

Even though carriers may act to convey and maintain recessive genes within a population by passing them on to offspring, the carriers themselves are not affected by the recessive trait associated with the recessive gene.

1)

i))the process of preparing food by green plants in the presence of sunlight is called photosynthesis.

ii) leaf is the site for photosynthesis.

iii) it takes place as,

6h2o+6co2=c6h12o6+602