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Genetics Vocab
Vocab Test
14
Biology
Undergraduate 2
10/24/2012

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Term
gene
Definition
a short segment of DNA that contains the information to build one protein.
Term
allele
Definition
a variation of a gene
Term
homologus chromosomes
Definition
paired chromosomes with one from the mother and one from the father.
Term
autosomes
Definition
the pairs that are not sex-related
Term
chromosomes
Definition
sex-related pair
Term
phenotype
Definition
includes the visible or measurable features of an individual
Term
genotype
Definition
is the particular genetic makeup an individual
Term
gametes
Definition
are specialized reproductive cells that carry one copy of each chromosome. 
Term
haploid
Definition
carries half of a pair of chromosomes
Term
meiosis
Definition
the dividing of chromosomes (going from 46 to 23)
Term
zygote
Definition
the result of a haploid sperm fertilizing a haploid egg. It is diploid and carries two copies of every gene on 46 chromosomes.
Term
embryo
Definition
the result of a zygote going through mitosis. The embryo will eventually grow into a human child.
Term
meiosis I
Definition
separates homologus chromosomes. Although each daughter cell is haploid, each chromosome is still in its replicated state.
Term
meiosis II
Definition
separates sister chromatids, creating four haploid daughter cells.
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