Shared Flashcard Set

Details

Genetics and Heredity Vocab.
Vocabulary Review
23
Science
8th Grade
10/22/2008

Additional Science Flashcards

 


 

Cards

Term
Traits
Definition
The physical characteristics of an organism
Term
Heredity
Definition
The passing of traits from parents to offspring
Term
Genetics
Definition
The study of genetics
Term
Gregor Mendel
Definition
The father of genetics, studied pea plants
Term
Gene
Definition
The factors that control traits
Example - for eye color, height, hair color
Term
Alleles
Definition
The different forms of a gene
Example - blue eye, brown eye, blonde hair, brown hair
Term
Dominant alleles
Definition
The traits that show up if the allele is present; written as capital letters
Ex - B, T, C
Term
Recessive alleles
Definition
The allele that is covered up if the dominant allele is present; written as lowercase letters
Ex - b, t, c
Term
The number of genes for each trait
Definition
TWO
Term
Purebred
Definition
Two of the same alleles for a trait; TT, tt
Term
Hybrid
Definition
Two different alleles for a trait; Tt
Term
Probability
Definition
The chance of something happening
Term
Punnett square
Definition
Shows the possible combinations of a genetic cross; shows the probability of combinations in a genetic cross
Term
Phenotype
Definition
The physical appearance of a trait
Ex - blue eyes, pink flower, tall, straight finger
Term
Genotype
Definition
The genetic make-up of a trait
Ex - TT, Tt, tt
Term
Homozygous
Definition
Two of the same alleles for a trait; TT, tt
Term
Heterozygous
Definition
Two different alleles for a trait; Tt
Term
Homozygous dominant
Definition
TT
Term
Homozygous recessive
Definition
tt
Term
Heterozygous dominant
Definition
Tt
Term
Purebred dominant
Definition
TT
Term
Purebred recessive
Definition
tt
Term
Hybrid dominant
Definition
Tt
Supporting users have an ad free experience!