Question

Each physical trait of an organism is produced by the instruction of a particular _____.

Answer 1

The answer is ''gene''

Answer 2

Allele Pair/gene

Step-by-step explanation:

The alleles are found on gene. Allele are the genetic material that are responsible for expressing any trait/characteristic in any living being.

For instance,

Suppose a red gulmohar flower has genotype "RR"

and a white gulmohar flower has genotype "rr"

Here , "R" is the allele for red color of flower while "r" is the allele for white color of flower.

Thus, each physical trait of an organism is produced by the instruction of a particular allele pair or gene.