Genetics Flashcards
Somatic Cells
normal body cells
Gametes
sex cells
Autosomes
chromosomes that contain not related to sex
Sex Chromosomes
chromosomes that contsin genes related to sex
Homologus Chromosomes
chromosomes that share the same gene but different alleles
Sister Chromatids
Halves of a duplicated chromosome
Diploid
Full set of chromosomes (normal body cells)
Haploid
Half of full set of chromosomes (sex cells)
Meiosis
replication of sex cells
Meiosis 1
first part of meiosis which produces two haploid cells
Meiosis 2
final part of meiosis which produces four haploid cells
Spermatogenesis
result of meiosis that produces 4 sperm cells
Oogenesis
result of meiosis that produces 1 egg and 3 polar body
Gregor Mendel
Father of Genetics
Law of Dominance
hybrid offspring will only inherit the dominant trait in the phenotype
Law of Segregation
during the production of gametes, two copies of each hereditary factor segregate so that offspring acquire one factor from each parent
Law of Independant Assortment
that a pair of traits segregate independantly of another pair during gamete formation
Homozygous Dominant
having two dominant genes
Homozygous Recessive
having to recessive genes