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PCS LivingEnv.Topic4
vocab words
Term | Definition |
---|---|
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 | the result of activated genes |
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 | hormone associated with sexual development and the reproductive system |
recombination | additional mixing of genetic material from a sperm and egg |
sex cell | an egg or a sperm |
sexual reproduction | a method of reproduction that involves 2 parents |
species | a group of organisms that share certain characteristics and can mate with one another |
sperm | male sex cell |
testes | male reproductive organ that produces sperm and the hormone testosterone |
testosterone | a hormone associated with make sexual development and reproduction |
uterus | the organ in female animals where the embryo develops into a fetus |
zygote | cell that results from joining of egg and sperm contains all genetic information needed by the offspring |