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Cream of the Crop 20
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Cream of the Crop 20 (Terry Blount) (1996).iso
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CHROMOS.DAT
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1994-08-10
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gene linkage some genes travel together with one another
linkage group units of genes that always occur together
crossing over reconnecting of chromosomes during cell division
recombinant an individual with a new combination of genes
gene mapping making a map of the chromosomes in an individual
genome project research that will make a map of all human chromosomes
sex chromosome X or Y chromosome that determines maleness or femaleness
autosome chromosomes that are the SAME in males and in females
sex linkage occurence of a gene on one of the sex chromosomes
X chromosome two of these result in a female in human beings
Y chromosome one of these is present in a male in human beings
mutation a sudden change in a gene or in a chromosome
deletion a kind of mutation in which a part of a chromosome is lost
duplication a kind of mutation in which a part of a chromosome is copied
inversion a kind of mutation in which part of a chromosome is reversed
translocation where part of one chromosome breaks off and attached to another
nondisjuntion failure of homologous chromosomes to separate during meiosis
polyploid having an extra set of chromosomes
triploid having the 3N chromosome number
diploid having the 2N chromosome number (46 for humans)
monoploid having the 1N chromosome number (23 for humans)
point mutation a mutation where a single nucleotide of the DNA is involved
mutagen something that can cause a mutation (radiation; chemical)
somatic mutationa mutation that occurs in the body cells
germ mutation a mutation that occurs in the reproductive cells
gene mutation another name for point mutation
trisomy when there are three copies of a particular chromosome
karyotype a map or picture of the chromosomes of an individual
Down's syndrome condition caused by having trisomy of the #21 chromosome
sickle cell genetic disorder that affects the hemoglobin
hemophilia genetic disorder that affects blood clotting
amniocentesis use of a probe to obtain chromosomes from a fetus
phenylketonuria genetic disorder that affects enzyme that makes tyrosine