Gregor Mendel's experiment
Mendel crossed two pure breeding plants they parent plants were called what generation
parent (p)
when does the principal of segregation happen
miosis homologs line up randomly during metaphase 1
when does the principal of segregation happen
miosis homologs line up during metaphase
crosses involving one trait are called what crosses
monohybrid crosses (4 square punnett square)
he preformed what in order to mix genes
cross pollination
what does the principle of segregation state
the members of each pair of genes separate, or segregate, when gametes are formed
what does the principal of segregation state
the members of each pair of genes separate or segregate when gametes are formed
crosses involving two traits are called what
dihybrid crosses 16 square punent square
a gene that masks the other gene in a pair is called what
dominant usally the upper case letter
when the two genes are both dominant it is what
homozygous dominant
what does the principal of independent assortment sate
two or more pairs of genes segretate independently of one another during the formation of gamets however these genes need to be on different chromosomes mendel was lucky since the traits he found in peas were on different chromosomes
incomplete dominance is what
blending of the traits
the gene that is hidden in the F1 generation is called what
recessive lower case letter
individuals with a dominant gene and a recessive are called what
heterozygous
a term used to refer to either member of a pair of genes is called what
an allele
here both alleles are expressed
traits will be blended if it is hetrozygous
after testing the plants in the second generation he saw that one trait seemed to disappear how can you explain this
traits were not lost, they were only being prevented from being expressed
when the two genes are identical the individual is said to be what
homozygous (pure bred)
the pairs of alleles in the cells of an organism make up what
a trait that is actually expressed in an organisms appears is the what
the genotype (genetic combo)
phenotype (physically expressed)
codominance
alleles are each expressed just like incomplete dominance but the traits will be independently expressed instead of having intermediate trait