You are a research scientist trying to determine if the genes controlling bone density can be affected by environmental factors. What would be most useful to your research?
A. X-ray machine
B. Siblings to study
C. Mass Spectrometer
D. Identical twins to study

Drag the correct tiles to the image. not all tiles will be used. the diagram is a schematic representation of the electron transport mechanism in mitochondria. label the diagram to complete the model.

As a small change in a person's dna can cause a genetic disorder

Plz ! cattle ranchers and dairy farmers rarely allow all of their animals to reproduce instead they practice selective breeding and only encourage the reproduction of animals with specific features. which of the following cows would a dairy farm most likely choose to reproduce? a. a cow that makes a lot of milk. b. a cow that can run quickly. c. a cow with a think, soft fur. d. a cow with large, strong hooves.