Heredity

Heredity

What is Heredity?

ผลการค้นหารูปภาพสำหรับ what is heredity

Heredity is the passing on of traits from parents to their offspring; either through asexual reproduction or sexual reproduction, the offspring cells or organisms acquire the genetic information of their parents. Through heredity, variations between individuals can accumulate and cause species to evolve by natural selection. The study of heredity in biology is genetics.

 

What are traits?

ผลการค้นหารูปภาพสำหรับ what are traits

Identical twins have exactly the same DNA, but they are not exactly alike. Each twin has his or her own personality, talents, likes, and dislikes. There are even diseases that appear in one twin but not the other, including arthritis, diabetes, autism, schizophrenia, cancer, and many others. The differences between identical twins don’t come from DNA—they all come from external factors.

Scientists often study twins to understand how genes and the environment work together to affect traits. They compare traits in identical twins, who have identical DNA, and fraternal twins, who share half their DNA, just like any siblings. If a characteristic appears more frequently in identical twin pairs than in fraternal twin pairs, then it has an inherited component.

 

5 examples

ผลการค้นหารูปภาพสำหรับ 5 examples of heredity

Flat feet vs Arches

Attached vs Free Earlobes

Eyecolor

Widows Peak vs Straight Hairline

Colorblindness vs Non Colorblindness

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