FORESTRY
SOIL SCIENCE
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
flower color
|
|
|
seed yield
|
|
|
pod shape
|
|
|
stem length
|
Detailed explanation-1: -Examples of quantitative traits include height, skin colour, weight and blood pressure. There is no single gene for any of these traits, instead it is generally believed that continuous variation in a trait such as blood pressure is partly due to DNA sequence variations at multiple genes.
Detailed explanation-2: -For example, height in many plants (e.g., corn, tomato, pea, marigold) is genetically controlled quantitative trait, but some environmental factors as soil, fertility, texture, and water, the temperature, the duration and wavelength of incident light, the occurrence of parasites, etc., also affect the height.
Detailed explanation-3: -A quantitative trait is a characteristic controlled by multiple genes as well as the environment. Some good examples of quantitative traits include IQ, blood pressure, height, and weight.