Which of the following principles of genetics got its foundation in the work of Gregor Mendel?
a. The idea that a human zygote has 23 pairs of chromosomes.
b. The existence of dominant and recessive genes.
c. The fact that mitosis and meiosis explain how chromosomes replicate themselves.
d. The concept that monozygotic twins share more of their genetic code than dizygotic twins.
Answer: B
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