I would go with C most likely
Trisomy 21, as illustrated by the karyotype, is caused by nondisjunction. This occurs when chromosomes do not separate properly during meiosis.
Answer is D) nondisjunction
The correct answer is 9 proteins form each of the 20 facets of this virus. A capsid is the protein shell that surrounds a virus. A capsomere is the subunit of the capsid. Depending on the virus, capsomeres arrange in many different shapes to form the capsid. The yellow mottle virus has 20 facets, this means that it has an icosahedral capsid. Since it contains 180 identical capsomeres, we can conclude that 9 proteins form each facet.
The right option is; scientific laws were theories that have been tested, proven, and adopted as laws
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Scientific laws are generalized rules that are created to describe a body of observations in the form of words or mathematical equations. Scientific laws are based on repeated experimental evidence that have been tested, proven, and they are commonly restricted to a specific set of conditions. Examples of scientific laws are Newton's law of gravity and the Hubble's law of cosmic expansion.
The answer is right in front of your face lol
