Question

what do we call a magnified image of chromosomes arranged by size?
mri
karyotype
cardiogram

Explanation:

• MRI (Magnetic Resonance Imaging) is a medical imaging technique used for body tissues, not related to chromosome arrangement.
• A karyotype is a visual representation of an individual's chromosomes, arranged by size, shape, and other features.
• A cardiogram (ECG/EKG) records the electrical activity of the heart, irrelevant to chromosomes.

Answer:

B. karyotype (assuming the options are labeled, with the second option being karyotype as per the list: 1. MRI, 2. karyotype, 3. cardiogram)