What are the proverbs of heredity and variation?

1, the dragon begets the dragon, the phoenix begets the phoenix, and the mouse's son can make holes.

2. Like a tiger, like a father, like a son.

3. A mother gave birth to nine children, even ten mothers.

As you sow, you reap as you sow.

5. My father is short and my mother is short.

Proverbs about change:

1, Longsheng Jiuzi, all different.

2. golden phoenix flew out of the henhouse.

3. Shining on you is better than blue.

4. Oranges Huainan is an orange, and Huaibei is an orange.

5. The fruit of the tree is bitter and sweet, and the mother's son is stupid and smart.

: heredity:

There are similarities between parents and offspring, which shows that traits can be passed from parents to offspring. This phenomenon is called heredity. Genetics is a subject that studies this phenomenon. At present, it is known that the existing life on the earth mainly uses DNA as genetic material. In addition to heredity, there are also factors that determine biological characteristics, such as environment and the interaction between environment and heredity. Heredity originated from the informationization or rhythm of early life process.

Heredity is the phenomenon that offspring repeat the characteristics (traits) of their parents in this continuous system, and its essence is the genetic material-gene that gametes produced by parents bring to offspring. The same genes define the same traits of biological development, so they are hereditary, which reflects the stability of the biological world. Different expression types of the same trait are called relative traits, which can be stably passed on to future generations.

Change:

Variation is a natural phenomenon of biological reproduction and the result of heredity. The phenomenon of differences in characteristics between parents and children is called variation. It can be divided into heritable variation and heritable variation.

The stability of genes is relative, because in the long-term development of several generations, it is inevitable that the structure of genes will change at this time or that time. Genes with structural changes make the development of organisms different from that before the change, so there is variation (heritable variation).

Genetic variation gives new content to heredity, and also enables the long-lived continuous system of organisms to develop and evolve continuously. Without inheritance, it is impossible to maintain the relative stability of traits and species; Without variation, there will be no new traits, and there will be no evolution of species and breeding of new varieties.