Variation And Genetics Flashcards
Inheritance
Transmission of gentic information from one generation to anothe r
Genotype and phenotype
Genotypes shown with 2 letters are called alleles
Heredity
Process by which genes are passed down from parent to offspring
Chromosome
A long coiled up molecule that carries genes
Gene
Shirt section of dna
Dna
Found in the nucleus of a cell Double helix Phosphate and sugar backbone 4 bases cg and ta It is a molecule that contains gentic code for organisms
Gamete
The sex cells
Ova and sperm
Diploid
2 sets of complete chromosomes
Haploid
Singke set of unpaired chromosomes
Zygote
A diploid cell from the fusion of 2 haploid gametes
Allele
Each form of a gene
Eg short or tall
Dominant
Capital
Usually seen the most
Recessive
Lower , only occurs when theres no dominant
Homozygous
Two are same
They are identical alleles
Heterozygous
Different
Genotype
The combination of alleles an organism has for a gene Dd