Plant Biology
Part of the plant that provides support; holds leaves, flowers, and buds; stores food; and connects roots to leaves.
Stem
XX and xx
Disease that results from unchecked cell division
Cancer
Close interactions between individuals of different species over extended periods of time.
Symbiosis
An individual's observed traits
Phenotype
These two adaptations allowed plants to reduce their dependence on water.
Seeds and pollen
Frameshift mutation
Undifferentiated cells that can be totipotent, pluripotent, or multipotent
Stem cells
What is measured and affected in an experiment
Dependent variable
Both alleles for same characteristic expressed simultaneously in heterozygote. Ex. Blood type.
Codominance
Plant tissue that transports water and nutrients.
Xylem
A principle stating that alleles of different genes separate independently of each other during metaphase I of meiosis.
Independent assortment
The "garbage disposal" of the cell; breaks down unused cell parts
Lysosome
The energy molecule for most organisms.
ATP
Stalk that extends from the stem to the base of a leaf
Petiole
Wind, water, animal fur, clothing, digestion/defecation
Mechanisms of seed dispersal
Uracil
Genes that code for proteins that prevent unchecked cell division
Tumor suppressor genes
A type of symbiosis where both individuals benefit from the relationship. Example: Pollinators and flowers.
Mutualism
Male and female organs are on separate individuals
Plant tissue where growth and cell differentiation occurs
Meristems
Zygosity of Mendel's F1 plants
Heterozygous
Tumor suppressor protein that activates DNA-repairing enzymes and triggers apoptosis
p53
A form of genetic drift that results from a drastic reduction in population size
Selecting for beneficial alleles and thus increasing their frequency in the population, while selecting against deleterious alleles and thereby decreasing their frequency.
Adaptive evolution