Human Health And Inheritance And Variation Flashcards
(17 cards)
What is variation
The way members of the same species differ from wachother
How is variation caused
Changed in DNA
What is a species
A group of organisms that can be bred with eachother and produce a fertile offspring
What is fertile
Fertile is an organism capable of creating offspring
What are chromosomes
Things found within cells
How many chromosomes do humans have
46 in each cell
How many chromosomes do we get from our parents
23 from each parent
What are genes
Lengths of DNA along a chromosome
What can effect traits
Environment
What is inheritance
Traits that are passed from parents to offspring
Exampke of inherited traits
Hair, eyes, hair texture, build, facial features, blood type
Exampke of non inherited traits
The way you talk, personality, hobbies
What’s a genotype
Genes an organism posses
What is a phenotype
The traits that can be seen in an organism
Dominant
A gene that prevents anotjer from working
Recessive
A gene that is prevented from being expressed
Three types of human health
Physical, mental, social well-being
