Shared Flashcard Set

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Genetics Terminology
Word
59
Science
11th Grade
05/12/2011

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Term
Gregor Mendel
Definition
The guy with the pea plants. (Father of Genetics)
Term
Meiosis
Definition
Sexual cell splitting
Term
Chromosome Theory of Heredity
Definition
Physical and found in chromosomes
Term
Gene Linkage
Definition
Tendency of certain alleles to be inherited together.
Term
Crossing-over
Definition
When the various parts are traided
Term
Mutations
Definition
deformities in the allele
Term
Gene expression
Definition
The use of information in genes to make proteins and such
Term
Linkage Groups
Definition
All the genes on one chromosome
Term
Recombinant
Definition
An organism that has different alleles from each of it's parents
Term
Sex Chromosomes
Definition
X and Y. Girls have two x, guys have one of each
Term
Autosomes
Definition
Not a sex chromosome
Term
X-Chromosome
Definition
Girls have two
Term
Y-Chromosome
Definition
Guys have one and one x.
Term
Chromosomal Mutation
Definition
The number/structure of the chromosome change
Term
Nondisjunction
Definition
Failure of chromosomes to separate properly during mitosis
Term
Polypoidy
Definition
contain more than two homologous sets of chromosomes
Term
Gene Mutation
Definition
permanent change in DNA sequence
Term
Point Mutation
Definition
causes the replacement of a single base nucleotide
Term
Frameshift Mutation
Definition
indels of a number of nucleotides
Term
Incomplete Dominance
Definition
Red + White = Pink
Term
CoDominance
Definition
Both traits are represented equally
Term
Polygenic
Definition
Influence a phenotype
Term
Hereditary
Definition
Passed down through the family
Term
Genetics
Definition
The study of genes
Term
Self/Cross Pollination
Definition
Like how we have to have two plum trees or else it wont reproduce, but we can have only one Rowan
Term
Purebred
Definition
NN You can predict how the babies will turn out as long as you screen the partners. Homozygous.
Term
Hybrid
Definition
Heterozygous. two different types put together
Term
Trait
Definition
Characteristic
Term
Gene
Definition
Determines a feature in an organism
Term
Allele
Definition
Contains the genes for various traits.
Term
Dominance
Definition
An allele that shows itself over another allele (Nn N is dominant)
Term
Segregation
Definition
Mendel's Law of segregation. The allele pairs separate during gamete formation
Term
Punnett Square
Definition
The way of determining the odds of a specific outcome (traitwise). Parent 1 goes on one side, Parent 2 on the other.
Term
Gamete
Definition
Fuses with another gmaete during sex
Term
Phenotype
Definition
Physical appearance
Term
Genotype
Definition
Genetic status
Term
Homozygous/heterozygous
Definition
Homo - same. Hetero - different
Term
Independent assortment
Definition
Allele pairs separate independantly during the time when gametes are made
Term
Probability
Definition
Likely hood of something happening. In this case, the likelyhood of a trait
Term
Homologous
Definition
Richard Owen defined homology as "the same organ in different animals under every variety of form and function"
Term
Diploid/Haploid
Definition
Diploid = full. Haploid = halfed
Term
Human Traits
Definition
Shape of face, cleft in chin, earlobes, eyes...
Term
Genetic Disorders
Definition
Illness caused by malformalities in genes/chromosomes
Term
Zygote
Definition
Initial cell with two gametes for making a baby to be
Term
Multiple Allele
Definition
Blood type. Three or more forms of a gene
Term
Polygenic trait
Definition
A trait controlled by nonallelic genes
Term
Sex-Influenced
Definition
Relating to a genetic disorder in which the same genotype has differing manifestations in the two sexes.
Term
Amniocentesis
Definition
Taking juices from the unborn baby to see if it will be normal
Term
Colorblindness
Definition
When you can't see color.
Term
Hemophilia
Definition
Bleeding diseases. Once you start bleeding you can't stop. It impares the body's ability to create blood clots
Term
Muscular Dystrophy
Definition
Group of hereditary diseases that weaken the muscles
Term
Selective Breeding
Definition
When you decide who gets to make babies by what you want the children to look like
Term
Inbreeding Hybridization
Definition
Inbreeding - YOu breed with your family. Bad because it brings out traits that wouldn't otherwise be recognised
Term
Mutagen
Definition
Physical/chemical agents that changes the DNA/genetic material
Term
Clone
Definition
Exact copy. Dolly
Term
Genome
Definition
Genetic code. Genetic information en masse
Term
DNA fingerprinting
Definition
Identifying a person by their DNA. For crime-scenes.
Term
Recombinant DNA
Definition
DNA sequences that result from the use of laboratory methods (molecular cloning) to bring together genetic material
Term
Genetic Engineering
Definition
Human Manipulation of an organism's DNA
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