[Campbell Biology P.593] The concept of 'evo-devo' evolutionary developmental biology highli... | Practice Question

The concept of 'evo-devo' evolutionary developmental biology highlights how major morphological differences between species can result from slight genetic differences that alter which of the following aspects of an organism's development?

  • A: The total number of genes in the genome.
  • B: The rate, timing, and spatial pattern of change in an organism's form.
  • C: The frequency of spontaneous mutations.
  • D: The direct inheritance of acquired characteristics.

Explanation

The section 'Effects of Developmental Genes' states: 'In particular, large morphological differences can result from genes that alter the rate, timing, and spatial pattern of change in an organism's form as it develops from a zygote into an adult.'