Bio Vocab

Front 1

Trait

Back 1

Characteristic that is inherited

Front 2

Genetics

Back 2

Study of the hereditary patterns and variations of organisms

Front 3

Purebred

Back 3

Type of organism whose ancestors are genetically uniform

Front 4

Cross

Back 4

Mating of 2 organisms

Front 5

Law of segregation

Back 5

Mendel's first law, stating that 1) organisms inherit 2 copies of genes, 1 from each parent 2) organisms donate only 1 copy of each gene in their gametes because the genes separate during gamete formation

Front 6

Gene

Back 6

Specific region of DNA that codes for a particular protein

Front 7

Allele

Back 7

Any of the alternative forms of a gene that occurs at a specific place on a chromosome

Front 8

Homozygous

Back 8

Cahracteristic of having 2 of the same alleles at the same locus of sister chromatids

Front 9

Heterozygous

Back 9

CharacterisiC of having 2 different alleles that appear @ the same locus of sister chromatids

Front 10

Genome

Back 10

All of an organisms genetic material

Front 11

Genotype

Back 11

Collection of all of an organisms genetic info that codes for traits

Front 12

Phenotype

Back 12

Collection of all of an organisms physical characteristics

Front 13

Dominant

Back 13

Allele that is expressed when 2 diff. Alleles are present in an organisms genotype

Front 14

Recessive

Back 14

Allele that is expressed unless 2 copies are present in an organisms genotype

Front 15

Punnett square

Back 15

Model for predicting all possible genotypes resulting from a cross

Front 16

Mono hybrid cross

Back 16

Cross between organisms that involve only 1 pair of contrasting traits

Front 17

Test cross

Back 17

Cross between an organism with an unknown genotype and an organism with a recessive phenotype

Front 18

Dihybrid cross

Back 18

Cross beten organisms involving 2 pairs of contrasting traits

Front 19

Law of independent assortment

Back 19

Mendels 2nd law, stating THat allele pairs desperate from one another during gamete formation

Front 20

Probability

Back 20

Likelihood that a particular event will happen