Depending on what trait the alleles carry, the brothers will have a different phenotype and a different genotype.
For example; Eye color. My sister is heterozygous, meaning she has brown eyes. I am homozygous recessive, meaning I have blue(green/hazel) eyes. We both have the same parents, I just happened to inherit both of the recessive eye color alleles from my parents whereas, my sister inherited both the dominant and recessive alleles.
So, since the brothers inherited different sets of alleles, their genotype for a certain trait will be different.
A) only express certain genes
Answer:
Answer is C. Companies are learning that engaging in sustainable practices is good for business.
Explanation:
Environmental sustainability is the way of reducing the amount of toxins in the environment. This act include renewing the waste products such as plastics and nylon in the environment. The deterioration of these waste products is dangerous to the environment.
This act can be achieved when good policies are made on proper waste disposal and renewing the renewable substances.
Example is invention of wind power which prevent global warming.
In this case, companies should understand that engaging sustainable practices will reduce things that may affect their productivity, and what that can pollute their products and render it useless.