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final exam for JAMES
biology final exam 2008 james
18
Biology
9th Grade
06/11/2008

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Term
amniocentesis
Definition
The samping of amniotic fluid using a hollow needle inserted into the uterus, screen for developmental abnormalities of fetus.
Term
carcinogen
Definition
A substance capable of causing cancer in living tissue.
Term
meiosis
Definition
A type of cell division that results in two daughter cells each with half the chromosome number of the parent cell, as in the production of gametes.
Term
Anaphase
Definition
The process in meitosis or meiosis in which the chromosomes move away from each other.
Term
Diploid
Definition
containing two complete sets of chromosomes, one of each parent.
Term
M phase
Definition
The mitosis phase the phase of cell cycle in which the cell actually devides.
Term
asexual reproduction
Definition
cell reproduction that does not involve meiosis.
Term
Mutation
Definition
Alteration in the chromosome or the number of chromosomes.
Term
aster
Definition
a plant
Term
Downs syndrome
Definition
A syndrome that is a cause of a missing chromosome 21
Term
Nuclear envelope
Definition
double membane of the nucleus that encloses genetic materialin eukaryotic cells.
Term
Autosomes
Definition
a non sex chromosome
Term
egg
Definition
beginning of an embryo.
Term
nucleolus
Definition
the small dense structure in the nucleus of a cell during interphase.
Term
benign
Definition
does not grow in an aggressive manner, does not invade surrounding tissues, does not metastasize.
Term
metastasize
Definition
cancer that spreads to other sides of the body.
Term
Binary fission
Definition
a form of asexual reproduction in single celled organisms.
Term
eukaryotic cell
Definition
a cell that contains a nucleus.
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