Sexy sexy seeds Flashcards
(44 cards)
The expanded, apical, pollen-bearing portion of the stamen
Anther
Production of an embryo/seed without fertilization; results in clonal offspring of the parent plant
Apomixis
Female reproductive organ located in the innermost whorl of the flower; also known as the pistil
Carpel
A type of flower that contains all four whorls
Complete flower
A cross in which the parent plants have been selected by a plant breeder
Controlled cross
Pollination of a flower by a male parent that is NOT genetically identical to the female; pollination between different clones
Cross pollination
Spontaneous opening of a structure such as an anther or fruit permitting the escape of reproductive entities contained in the structure
Dehiscence
A species having separate male and female plants
Dioecious
Term used to describe cells that have two sets of chromosomes (twice that of a sex cell)
Diploid
Process that takes place in angiosperms in which two fertilization events occur–egg with pollen cell and polar nuclei with pollen cell
Double fertilization
Removal of male parts from the flower
Emasculation
The developing new plant inside a seed that the zygote becomes
Embryo
A triploid tissue containing stored food that is digested by the developing zygote as it grows into an embryo and then a mature seed
Endosperm
A first generation hybrid; the direct result of the crossing of two parent plants
F1 hybrid
Fusion of male and female gametes to form a diploid cell
Fertilization
Stalk of the stamen
Filament
Sex cell
Gamete
Term used to describe the characteristic of sex cells only containing half of the genetic material of the parent cell
Haploid
A type of flower that is missing either the male or female organs (stamen or pistil)
Imperfect flower
A type of flower that is missing one or more of the four whorls
Incomplete flower
An aggressive plant that escapes cultivation and takes over natural areas, crowding out native species
Invasive species
A block of plants placed together for open pollination away from any other plants to help reduce crossing with unknown plants outside of the block
Isolation block
Type of cell division that occurs in the reproductive parts of the plant and in which the daughter cells are NOT genetically identical to the parent cell
Meiosis
A species having male and female reproductive organs on the same plant
Monoecious