"linkage" refers to genes for different traits

1. forming dominate traits
2. resulting in incomplete dominance
3. being located on the same chromosome
4. being located on paired chromosomes

The use of logic making empirical observations and performing dissections were all part of the scientific studies by

Drag each tile to the correct box. the body monitors the levels of oxygen in the blood to regulate breathing. isabel is running in a marathon and is near the finish line. she feels out of breath. how will her nervous system work to generate a reaction? arrange the tiles in chronological order. isabel's breathing rate increases. sensory receptors in the arteries detect low oxygen levels. the brain sends signals through motor neurons. sensory neurons generate an impulse. the central nervous system relays an impulse to certain brain regions.

When a population split into two subgroups what is most likely to cause the subgroups to develop different traits?