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Pile Management Card
heredity study guide

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sex-linked traits
traits that are carried on the x chromosome
mutation
sudden change in gene or chromosome
nitrogen bases
molecules that contain the element nitrogen as well as other elements
carrier
carries trait but is NOT affected
each gene controls the production of a specific protien and that protein conrols a specific trait?
WHAT?
who is more likely to be affected by sex-linked traits?
males: they only have 1 x chromosome whereas females have 2 therefore if one male x chromosome is affected: there is not another one to take over.
what does haploid mean?
each cell has helf number of chromosomes
what is the result of meiosis
4 sprem cels
what causes a mutation
a change in a gene or chromosome
nitrogen bases
guanine AND cytosine GC
thymine AND adenine AT!
genetic code
the order in which your dna is organized
dna replication
process when dna makes an exact copy of itself
what does dna look like?
a spiral stair case
what is dna made of?
deoxyribose (sugar) and phosphate
why is dna important?
controls cell reproduction
dna
deoxyrionucleic acid ...controls reproduction
allele
one form of a gene
codominant
both alleles are dominant
watson and crick
strudcture of DNA discovers
imconplete dominance
neither gene masks the other
chromosome theory
genes are carried from parent to offspring on chromosomes
law of segregation
one gene from each pair goes to each sex cell
recessive
masked gene
dominant
trait that shows
law of dominance
every trait is controled by genes from both parents....

DOMINANT AND RECESSIVE
genotype
accual trait organism carries
phenoype
physical apearances
heterozygous
2 different traits Bb bB
homozygous
the same traits BB bb
gregor mendel
discovered using pea plants, offspring inherit genes.

discovered genetics
genetics
study of heredity
heredity
the passing on of traits from anb oganism to its offspring
trait
physical characteristic
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