The National Scholars Unparalleled Knowledge Quiz is here! The Awakening of Nations has launched the exciting National Warriors event, which includes a lot of knowledge questions and answers. Answer correctly and win rewards! One of the questions - "Where does environmental adaptability come from?" has attracted widespread attention. Want to know the answer? Then follow PHP editor Yuzi to explore the next content, unlock the treasure trove of knowledge, and win event rewards!
Title: Where does environmental adaptability come from?
Answer: mutation and genetic recombination
1. Gene mutation, genetic recombination, and chromosomal variation are three types of biological variation.
2. Gene mutation is the arrangement of bases in the DNA sequence or the substitution of bases.
3. Gene recombination is the free combination between non-homologous chromosomes and the cross-over exchange between chromatids of homologous chromosomes.
4. Chromosomal mutations are substitutions, transfers, deletions, etc. of DNA sequences.
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