enFIch.10 genetics25
genes:DNA segments
gametes:have half the number of chromosomes
Haploid:number n
diploid:number
meiosis:gametes are formed
crossingover:chromosomal segments are exchanged
genetics:the study of
homozygous:same alleles
heterozygous:different allele
genotype: YY yy
phenotype:out ward appearance
hybrids:heterozygous organism
polyploidy:one or more sets of chromosomes
carrier:recessive disorder
pedigree:diagram of generations
incomplete dominance:heterozygous phenotype is intermediate
codominance:both alleles are expressed
multiple alleles:blood in groups of humans
epistasis:a hiding allele effects
autosomes:the other twenty two pairs of chromosomes
sex linked traits:traits controlled by a gene on the x chromosome
polygenic traits: eye skin color
karyotype:arranged by decreasing size
telomeres:protective caps
double helix:twisted ladder