Heredity Flashcards
Phenotype
observable traits
Genotype
name of the alleles
Heredity
traits that are passed on from the parents to offspring
Gene
Alleles
variety of the same gene an in dimple or not dimple
Offspring
babies
Traits
characteristics
Sexual reproduction
Requires male and female gametes to produce offspring
Mitosis
cell division that results in two identical daughter cells
Meiosis
cell division that produces sex cells, each cell is unique (different from one another)
DNA
located in the nucleus of a cell; it is a genetic material
Asexual Reproduction
does not require male and female gametes to produce offspring
Probability
a chance
Gametes
sex cells (egg or sperm)
Punnett Square
diagram showing how male and female alleles might combine in offspring
Fertilization
the process by which sperm and egg combine to form an offspring
Zygote
Recessive
a gene that is expressed only when there are 2 copies of the same alleles (ff)
Homozygous Recessive
2 copies of the same recessive alleles (small small letter: gg ,ff)
Dominant
a gene that is expressed either with 1 or 2 of the alleles
Homozygous Dominant
2 copies of the same dominant alleles (big big letter : ie.. TT,GG,FF)
Heterozygous
a mixed gene with one dominant allele and one recessive allele; ie.. Tt,Gg,Ff)
Gregor Mendel
father of genetics. He experimented with pea plants
Cross Pollination
the crossing of gene between two flowers; done by insects, human,winds)