GENETICS AND EVOLUTION
GENETIC BASIS OF INHERITANCE
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
environment
|
|
|
diet
|
|
|
stage of the organism’s life cycle
|
|
|
all of these are true
|
Detailed explanation-1: -Apart from the genetic interactions, the phenotype of an organism will also depend on the influence of the environment and random (genetic) variations. Exposure to environmental factors could affect the appearance of an organism.
Detailed explanation-2: -Environmental factors such as diet, temperature, oxygen levels, humidity, light cycles, and the presence of mutagens can all impact which of an animal’s genes are expressed, which ultimately affects the animal’s phenotype.
Detailed explanation-3: -An organism’s phenotype results from two basic factors: the expression of an organism’s genetic code (its genotype) and the influence of environmental factors.
Detailed explanation-4: -Morphology, physiology, and behavior are attributes of individual organisms that can be observed. These attributes are known as the phenotype.
Detailed explanation-5: -With one locus and additive effects we have three phenotypic classes: AA, Aa and aa.