Answer:
This indicates that the expression of genes depends partly on environment.
Explanation:
The case shown in the question is showing a situation where there was a genetic interaction with the environment, resulting that gene expression depends in part on the environment.
Gene and environmental interactions are revealed by penetrance and expressiveness. Penetrance is the percentage of individuals with a given gene that have a phenotype linked to this gene, such as children and parents who have the same height. In cases of penetrance, a genotype may not express the expected phenotype due to gene influences and environmental effects, as happened to the couples' children shown in the question.
The body uses more calories for daily activities
During exercise, an individual's heart rate tends to increase steadily until a level of consistent intensity has been reached. Correct answer:C Afterwards the heart rate decreases back to normal.
As a result of increased exercisethe volume of blood pumped by the heart increases
The mRNA brings the message that was transcribed by the DNA to the ribosome, while the tRNA brings the anticodon to translate the message.
