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Herdity Chapter 5
genes, alleles, etc...
24
Science
Not Applicable
02/27/2005

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Term
Genetics
Definition
the study of how traits are inherited through the movements of alleles
Term
alleles
Definition
the different forms a gene may have for a trait
Term
purebred
Definition
organism that always produce the same trait in their offspring.
Term
Gregor Mendel
Definition
Austrian Monk born in 1822 crossed purbred tall and purebred short plant and got all tall plants the 1st generation. The 2nd generation for every 3 tall plants their was 1 short one. He is now known as "The father of Genetics"
Term
Genes
Definition
Genes control traits
Genes are made up of DNA
Term
Meiosis
Definition
when pairs of chromosomes seperate during meiosis, pairs of genes also seperate
Term
Dominant
Definition
commanding, prevailing, controlling, prevailing over all traits
Term
recessive
Definition
the trait that seems to be covered up
Term
Punnett Square
Definition
a handy tool used to predict traits in offspring
Term
Homozygous
Definition
an organism that has 2 alleles that are identical
Term
Heterozygous
Definition
an organism with 2 alleles that are different
Term
phenotype
Definition
the physical trait that shows for the genotype
Term
incomplete dominance
Definition
the production of a phenotype that is intermediate to those of the 2 homozygous parents
Term
multiple alleles
Definition
a trait that is controlled by more than 2 alleles
Term
polygenic inheritance
Definition
when a group of genes act together to produce to 1 trait
Term
sex-linked genes
Definition
disorders inherited on the sex chromosomes
Term
homozygous disorders
Definition
sickle cell anemia
cystic fibrosis
Term
pedigree
Definition
tool used to trace the occurence of traits in a family
Term
genetic engineering
Definition
biological and chemical methods used to change the sequence of genes and to make medicine
Term
genome
Definition
a chromosome map of all the genetic material in the human body(a certain human's body)
Term
your sex depends on
Definition
your sex depends on your parents chromosomes and fertilization. If and X fertilizes the egg your a girl if you inherit a Y your a guy
Term
Blood types
Definition
AB
AA AO
BB BO
O
Term
ERIN'S SPECIAL REMINDER
Definition
MAKE SURE YOU REMEMBER WHAT A FREAKIN ALLELE IS!!!!!!!!!!!!!!!!!!!!!!!!!!!!! AND REMEMBER ROXMYSOX(u no what the missing word is)
-gOoD LuCk
LuV bRiT
Term
BRITTANY'S SPECIAL REMINDER!!!!
Definition
YOU KNOW EVERYTHING ON THE TEST SO YOUR GONNA PASS! (OH U 2 ERIN)
-PeAcE oUt A-tOwN
-lUv BrIt
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