AP BIOLOGY

Detailed explanation-1: -Some identical twins can have different heights and weights. This is because height and weight are controlled by what you eat as well your DNA. Differences in diet can start earlier than you might imagine. When the twins are growing inside the uterus, there can be differences in how well they connect to the placenta.

Detailed explanation-2: -Because identical twins share all of their genes, their measurements of IQ and sleep time will be more similar the bigger role genes play in it (i.e., differences between two identical twins must be caused by the environment because their genes are the same).

Detailed explanation-3: -Although the majority of monozygotic twin pairs achieve an identical height, a proportion of them are discordant. Because monozygotic twins completely share their genome, differences in their adult height are not due to heritable factors.

Detailed explanation-4: -An individual’s height is mainly determined by their genes. However, environmental factors such as nutrition, sleep, or physical exercise play an important role in how tall we’ll become. Also, socioeconomic status, stress, and urbanization influence people’s height.