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32 Cards in this Set

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Disk of protein on a chromososes centromere to which micrtupules attach during mitosis and meiosis
Kinetochore
Kinetochore
Form of mutation in which a chromosome contains an extra copy of a segment on DNA
duplication
Duplication
Chromosomes that are similar in shape, size and the genes they carry.
Homologous Chromosomes
Homologous Chromosome
Mutation in which a nucleotide on segment of DNA is lost
Deletion
deletion
term usedto indicate cell containing two homologues of each chromosome
diploid
diploid
A syndrome of congenital defects especially mental retardation, resulting
from an additional chromosome
Down syndrome
Down syndrome
In meiosis, term esed to indicats the reduction of the number of chromosomer when the cytoplasm divides
Reduction division
growth response in which the direction of growth is determined by the stimulus
Trisomy
Trisomy
Form of mutation caused by a chromosome fragment jioning a nonhomologous chromosome during cell division
translocation
Translocation
Process in which the nucleus of a cell divides into two nuclei each with the sam number and of chromosome
mitosis
mitosis
process in which the nucleus of a cell completes two successive divisions that produce for nuclei, each with a chromosome number that has been reduced by half
meiosis
meiosis
Accident in chromosome separation when one daughter cell recelues both chromosomes and the other daughter
nondisjunction
nondisjunction
a chromosome that is not directly involved in determining sex
Autosomes
Autosomes
Procedure in which a sample of amniotic fluid is withdrawn and tested for gegetic abnormalities in a fetus
Amniocentesis
Amniocentesis
The exchange of reciprocal segments of DNA dy Chromosomes at the beginning of meiosis; source of genetic recombination
Crossing over
Crossing over
change in the DNA OF a gene or chromosome
Mutations
mutations
formof asexual reproduction that produces indentical offspring
Binary fission
Binary Fission
mutation in which a chromosome fragment rejoins its orignal chromosome with it's nucleotides reversed
inversion
invertion
network of hollow protein cables that form between separeted centrioles and move chromosomes apart
spindle Fiber
spindle fiber
Section of chromosome that cods for a protein or RNA molecules
GENE
GENE
Fertilized egg cell
Zygote
Zygote
Fetel testing procedure in which pieces of the chrionic villi in a mothers uterus are removed and examined for genetic adnormalities
Chronic Villi samplinf
Chronic Villi Sampling
Array of the chromosomes found in an individual's cell's arranged in order of size and shape
Karyotype
Karyotype
Chromosomes that differ Between males and Femals
Sex Chromosomes
Haploid cell that partiaipates in fertilization by fusing with another haplad cell
Gamete
Gamete
Rearrangement of genetic material
Genetic Recombination
Genetic recombination
Period of growth between two mitotic or meiotis divisions of a Eukaryotic cell
interphase
interphase
Having only one set of chromosomes
Haploid
pne of a pair of strands of DNA that make up a chromosome during meiosis or mitosis
Chromatids
Chromatids
Repeating five phase sequence of Eukaryotic cell growth and division
cell cycle
cell cycle
rejoining two chromatids
centromere
centromere
division of the cytoplasm
cytokinesis
cytokinesis