Answer:
D. they are usually dominant or recessive.
Explanation:
alleles are pairs of genes found on a particular spot a chromosome. If one is dominant over the other it give rise to a particular trait.
Number of neutrons in the nucleus
<span>a. constructed from thick aluminum walls that can control the nuclear reactions </span>
Consumer takes energy away
Are composed tiny particles called Atoms. Which are composed of neutrons, protons and electrons.
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