JAMB - Biology (1981 - No. 21)
Normally any character shown by an organism is due to the effects of
hormones and chromosomes
chromosomes
mutation
hormones and genes
genes and environment
Spiegazione
An organism's genetic makeup (DNA) provides the foundation for its development and behaviour. Environmental factors, including experiences, nutrition, and social interactions, influence how genes are expressed and can lead to variations in behaviour.
Genes and environment interact in complex ways, where the environment can modify how genes are expressed, and genes can influence an individual's susceptibility to environmental influences.