Question

The science which deals with the similarities and differences in organisms is_____.
1. Ecology
2. Genetics
3. Heredity
4. Eugenics

Answer 1

Correct Answer - Option 2 : Genetics

The correct answer is Genetics.

• The science which deals with the similarities and differences in organisms is Genetics.
• An organism refers to a living thing that has an organized structure, can react to stimuli, reproduce, grow, adapt, and maintain homeostasis.
• An organism would, therefore, be any animal, plant, fungus, protist, bacterium, or archaeon on earth. These organisms may be classified in various ways.

• Genetics is a branch of biology concerned with the study of genes, genetic variation, and heredity in organisms.
  • Though heredity had been observed for millennia, Gregor Mendel, Moravian scientist and Augustinian friar working in the 19^th century in Brno, was the first to study genetics scientifically. 
• The chemicals come in four types A, C, T, and G. A gene is a section of DNA made up of a sequence of As, Cs, Ts, and Gs. 

Description	Details
Ecology	Ecology is the study of the relationships between living organisms, including humans, and their physical environment; it seeks to understand the vital connections between plants and animals and the world around them.
Heredity	Heredity refers to the genetic heritage passed down by our biological parents. More specifically, it is the transmission of traits from one generation to the next. These traits can be physical, such as eye color, blood type or disease, or behavioral.
Eugenics	Eugenics is the practice or advocacy of improving the human species by selectively mating people with specific desirable hereditary traits. It aims to reduce human suffering by breeding out disease, disabilities, and so-called undesirable characteristics from the human population.