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chapter 10 Vocab. words
science class
15
Science
7th Grade
11/02/2015

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Term
asextual reproduction 
Definition
A  type of repeduction fission , budding , and resperation in which a new organism is produced from one organism and has DNA identical to the parent or organism.
Term
chromosome 
Definition
structure in a cell`s nucleus that contains hereditary material.
Term
diploid
Definition
cell whose similiar chromosomes occur in pairs
Term
DNA
Definition
deoxyribonucleic acid; the genectic material of all organisms; made up of two twisted strands of sugarphosphate molecules and nitrogen bases
Term
egg
Definition
haploid sex cell formed in the female reprodutive organs
Term
fermentation 
Definition
process by which oxygen-lacking cells and some one-celled organisms release small amounts of energy from glucose molecules and produce wastes such as alcohol , carbon dioxide, and lactic acid
Term
Gene
Definition
section of DNA on a chomosome that contains instructions for making specific protiens
Term
haploid 
Definition
cell that has half the number of chomosomes as body cells
Term
meiosis
Definition
reproductive process that produces four haploid sex cells form one deploid cell and ensures offspring will have the same number of chromosomes as the parent organisms
Term
mitosis
Definition
cell process in which the nucleus divides to form two nuclei identical to the original nucleus in a series of steps
Term
mutation
Definition
any permanent change in a gene or chromosome of a cell; may be benificial , harmful, or have little effect on an organism
Term
RNA
Definition
ribonucleic acid, a type of nucliec acid that carries codes for making protiens from the nucleus to the ribsomes
Term
 sexual reproduction 
Definition
two sex cells sometimes called an egg and a sperm, come together
Term
sperm
Definition
haploid sex cells formed in the male reproductve organs
Term
zygote
Definition
new diloid cell formed when sperm fertilizes an egg
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