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Reproduction
Reproduction
22
Biology
9th Grade
05/19/2014

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Term
Reproduction
Definition
the process by which organisms
produce new organisms of the same
type
Term
Asexual Reproduction
Definition
a method of reproduction in which all
the genes passed on to the offspring
come from a single individual or parent
Term
Sexual Reproduction
Definition
a method of reproduction that involves
two parents producing offspring that
are genetically different from either
parent
Term
Sperm
Definition
the male sex cell
Term
Egg
Definition
a sex cell produced by a female
Term
Gamete
Definition
an egg or sperm cell; a sex cell
Term
Mitosis
Definition
the process that divides the cell’s
nucleus into two, each with a complete
set of genetic material from the parent
cell
Term
Meiosis
Definition
the process that results in the
production of sex cells (sperm and egg)
Term
Fertilization
Definition
the process that combines a sperm cell
and an egg cell
Term
Zygote
Definition
the cell that results from the joining of
the egg and sperm
Term
Recombination
Definition
the additional mixing of genetic
material from a sperm and egg which
results in a unique combination of
genes
Term
Differentiation
Definition
the process that transforms developing
cells into specialized cells with
different structures and functions
Term
Embryo
Definition
an organism in the early stages of
development
Term
Gene Expression
Definition
the result of activated genes
Term
Ovary
Definition
the organ of the human female
reproductive system that produces an
egg cell, the female gamete
Term
Progesterone
Definition
a hormone associated with sexual
development and the reproductive
system
Term
Estrogen
Definition
a hormone (produced by the ovaries)
that controls female sexual
development and the reproductive
process
Term
Uterus
Definition
the organ, in female animals, where the
embryo develops into a fetus
Term
Placenta
Definition
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
Term
Testes
Definition
the male reproductive organ, that
produces sperm and the hormone
testosterone
Term
Testosterone
Definition
a hormone associated with male sexual
development and reproduction
Term
Fetus
Definition
the unborn, developing young of an
animal during the later stages of
development
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