Genetic crosses Flashcards
Heredity
passing on of traits from parents to offspring my means of genes
somatic cells
non-sex cells eg.body cell
diploid
2 sets of chromosomes
haploid
contains 1 set of chromosomes
gamete
sex cell, haploid and capable of fusion
progeny
offspring
fetilisation
when two gametes fuse to form a zygote
Gene
section of Dna on a chromosome that contains information how to make a ptotein
gene expression
when the gene is made
alleles
different forms of the same gene
locus
position of a gene on a chromosome
Genotype
The genetic make up of the individual
phenotype
the physical apperance of an individial.
Phenotype = genotype + enviorment
Dominant gene/ allele
always expressed in the phenotype
recessive gene allele
prevented from being expressed by the dominant allele