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Topic 4

Living environment

TermDefinition
Asexual Reproduction A method of reproduction in which all the genes passed on to the genes passed on to the offspring come from a single individual or parent
Sexual Reproduction A method of reproduction that involves two parents producing offspring that are genetically different from either parent
Sperm The male sex cell
Egg A sex cell produced by a female
Species A group of organisms that share certain characteristics, producing fertile offspring
Sex cells an egg (female) or a sperm (male)
Gametes an egg or sperm cell; a sex cell
Mitosis The process that divides the cell's nucleus into two, each with a complete set of genetic material from the parent cell
Meiosis The process that results in the production of sex cells ( sperm and egg)
Fertilization The process that combines a sperm cell and an egg cell
Zygote The cell that results from the joining of the egg and sperm
Recombination The additional mixing of genetic material from a sperm and egg which results in a unique combination of genes
Differentiation The process that transforms developing cells into specialized cells with different structures and functions
Embryo An organism in the early stages of development
Gene expression The result of activated genes
Ovary The organ of the human female reproductive system that produces an egg cell, the female gamete
Progesterone A hormone associated with sexual development and the reproductive system
Estrogen A hormone (produced by the ovaries) that controls female sexual development and the reproductive process
Uterus The organ, in female animals, where the embryo into a fetus
Placenta The organ that enables nutrients and oxygen to pass from thee mother's blood to the fetus and waste products to pass from the fetus to the mother's blood
Testes The male reproductive organ, that produces sperm and the hormone testosterone
Testosterone A hormone associated with male sexual development and reproduction
Fetus The unborn, developing young of an animal during the later stages of development
Cloning A technique used to make identical organisms
Created by: user-1977505
 

 



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