What is the point of stem cells when there are already normal cells that can replace worn out cells when needed?

1.the evidene of the reaction

2.yes

3.yes

oak trees? ? what was listed

ans.

gregor john mendel is known for study of inheritance in pea plants. he used garden pea plant for his study, having alternative traits for various characters. he performed cross-breeding in pea plants to check how characters are transmitted between parents to offspring, such as cross between pure tall and pure dwarf plant. mendel studied the inheritance patterns in pea plants for various generations.

thus, the correct answer includes options and f).