A scientist makes an image of all of a person's chromosomes. What
technique is she using?
O
A. Polymerase chain reaction (PCR)

The correct answer is karyotype.                                                          

Explanation: A karyotype is an image that helps in analysis to a person's chromosome.

the principles and empirical processes of discovery and demonstration considered characteristic of or necessary for scientific investigation, generally involving the observation of phenomena, the formulation of a hypothesis concerning the phenomena, experimentation to test the hypothesis, and development of a conclusion that confirms, rejects, or modifies the hypothesis.

the elements of art are the visual tools that the artist uses to create a composition. these are line, shape, color, value, form, texture, and space.

the principles of art and design are balance, contrast, emphasis, movement, pattern, rhythm, and unity/variety.