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Monster Media 1996 #15
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Monster Media Number 15 (Monster Media)(July 1996).ISO
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GENETICS.DAT
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43 lines
heredity inheritance - passing of traits to children
genetics part of biology that studies inheritance
purebred organisms that produce offspring just like themselves
trait characteristic or feature of a living thing
hybrid organism produced by crossing different parents
genes what controls the characteristics
factors name that Mendel used for what controls the characteristics
Gregor Mendel considered to be the father of genetics
allele different forms of a gene (such as tall or short)
dominant an allele that has effects even if present with a recessive
recessive an allele that has no effects seen if present w/ a dominant
P used to stand for parental generation
F1 used to stand for "kids" (first filial generation)
F2 second filial generation (the "kid's kids")
segregation alleles do not stay with one another - they go their own way
Punnett square method of figuring how a genetic cross will occur
multiple alleleswhen three or more alleles are needed to determine a trait
gamete sex cell
phenotype appearance caused by a gene combination
genotype gene comination (such as Aa)
homozygous having two identical alleles (such as AA or aa)
heterozygous having two different alleles (such as Aa)
dihybrid cross genetic cross when you are doing two traits at one time
monohybrid crossgenetic cross when you are doing one trait only
independ. asst. genes for different traits go their own way
dominant a gene that prevents the expression of another gene
incomplete dom. when a hybrid has a trait in between its parents
recessive a gene that is not expressed
sex chromosome X or Y chromosome that determines maleness or femaleness
autosomes chromosomes that are not sex chromosomes
sex-linked when a gene is carried on the sex chromosome (X chromosome)
inbreeding when closely related individuals breed (to keep dog breeds)
geneetic engin. altering the DNA to cause a certain result in a living thing
recombinant DNA DNA made by combing different DNA strands in the lab
cloning the process of forming offspring from a single cell