Answer:
All the F2 progeny with recessive traits would be males
Explanation: This is because the x-linked trait chromosomes are recessive, The F1 when crossed would contain females but when crossed again the F2 progeny with recessive traits would be males
Answer:
Absence of a nucleus
Explanation:
In eukaryotic cells, DNA is typically harvested and saved in the nucleus, though prokaryotic cells lack a nucleus, so the DNA merely floats in the cytoplasm instead.
Answer:
a = 9
Explanation:
5(a + 4) - 6a + 1 = 12
5a + 20 - 6a + 1 = 12
5a - 6a + 20 + 1 = 12
-1a + 21 = 12
-21 -21
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-1a = -9
/-1 /-1
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a = 9