Males are represented my a square
if he is affected by a defective gene he should show a shaded square that differs from normal males just like this■
Answer:
The answer is in the photo
Explanation:
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Answer:
Explanation:
Nitrogen has an atomic number of 7 (Z=7) because it has 7 protons in its nucleus. Some nitrogen atoms have an atomic mass number of 15 (A=15). A is the number of neutrons plus protons in the nucleus. However, we already know that there are 7 protons.
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