Chromosomes. Hope this helps.
We do science because if we didn't we would not know a lot of the things we do know now.
Answer:
The parent with black fur had genotype Bb.
Explanation:
White fur is recessive in mice, so a mouse with white fur has to have two alleles of the white fur gene (bb). Black fur is dominant to white fur, so a mouse with black fur only needs one allele of the black fur gene (BB or Bb). In order for a black mouse and a white mouse to produce white offspring, the black parent has to have an allele for the white fur gene (Bb).
Precipitation and temperature
The correct answer is sympathetic.
Along with the enteric and the parasympathetic nervous systems, it completes the autonomic nervous system of humans. This part of the brain is responsible for 'fight or flight' situations, meaning that if a stressor influences us, the sympathetic nervous system will decide what our course of action is going to be.
