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PCS Liv Env

Vocabulary for Topic 4 - Reproduction and Development

TermDefinition
Asexual Reproduction a method of reproduction in which all the gens passed on to the offspring come from a single individual or parent (Hint: one parent - identical offspring)
Cloning a technique used to make identical organisms
Differentiation the process that transforms developing cells into specialized cells with different structures and functions
Egg female sex cell
Embryo an organism in the early stages of development (prior to birth)
Estrogen a female hormone (produced by the ovaries) that controls female sexual development and and the reproductive process
Expressed the way that an unseen gene is seen in an organism as an actual physical trait; gene is shown
Fallopian Tube where fertilization occurs
Fertilization the process that combines a sperm cell and an egg cell
Fetus the unborn, developing young of an animal during the later stages of development
Gamete an egg or sperm cell; a sex cell
Gene Expression the result of activated genes
Meiosis the process that results in the production of sex cells - sperm and egg; get half chromosomes from each parent
Mitosis the process that divide the cell's nucleus into two, each with a complete set of genetic material from the parent cell; body cells (Hint: Mitosis = My Toes)
Ovaries the organ of the human female reproductive system that produces an egg cell, the female gamete
Placenta the organ that enables nutrients and oxygen to pass from the mother's blood to the fetus, and waste products to pass from the fetus to the mother's blood (Reminder: mother's blood and baby's blood does not mix)
Progesterone a hormone associated with sexual development and reproductive system
Recombination the additional mixing of genetic material from a sperm and egg which results in a unique combination of genes
Sex Cell an egg (female) or a sperm (male)
Sexual Reproduction a method of reproduction that involves two parents to produce offspring that are genetically different form either parent
Species a group of organisms that share certain characteristics and can mate with one another, producing fertile offspring
Testes the male reproductive organ that produces sperm and the hormone testosterone
Testosterone a male hormone produced with male sexual development and reproduction
Uterus the organ, in female animals, where the embryo develops into a fetus
Zygote the cell that results from the joining of the egg and sperm
Created by: Ms.Sala