Question

question 2 1 pts complex traits: are typically controlled by a single gene. are either present or absent in an individual. are also called mendelian traits. are often influenced by environmental factors like nutrition.

Explanation:

Complex traits are polygenic (controlled by multiple genes) and are often influenced by environmental factors such as nutrition. Traits controlled by a single - gene are Mendelian traits and are either present or absent in a simple way. Complex traits do not follow simple Mendelian inheritance patterns.

Answer:

are often influenced by environmental factors like nutrition.