Why are plants in the alpine biome typically low growing?

Because of the conditions of the alpine biome,  these factors contribute to the residual and graudal growth of the plant population.

The alpine biome is low in temperature, high in snow fall and with robust wind speeds. These plants are barely surviving in these types of conditions. Also the alpine biome has a higher sunlight rate which affects the plants development and homeostatic balance. 

Dna strands are split apart to allow an opening for replication. the opening has two replication forks so synthesis goes toward them in 5' to 3' direction.