When a cell's cytoplasm divides
cytokinesis
what type of cells perform cell differentiation
stem cells
why did mendel use cross-pollination in his experiments
control the plants that pollinated other plants
When two alleles in a genotype are the same
homozygous
platypus or echidna
when a cell's nucleus divides
mitosis
unspecialized cell that can develop into many different cell types
stem cell
how many factors control each trait you inherit
2 (1 from each parent)
phenotype that is a blend of both parents' phenotypes
incomplete dominance
what is the name of the largest desert on earth
antarctica
when a cell grows and develops
interphase
group of similar types of cells that work together to do a specific job
tissue
fertilization that occurs when pollen from one plant lands on the pistil of a flower on the same plant
self-pollination
phenotype that shows both traits of the parents alleles
codominance
what is the largest organ on the human body
the skin
includes interphase and the mitotic phase
cell cycle
group of different organs working together to do a series of jobs
organ system
a genetic factor that is blocked by the presence of a dominant factor
recessive
phenotype determined by multiple genes
polygenic inheritance
how many bones are in the body
206
holds together the DNA strands in a chromosome
centromere
group of different tissues working together to do a job
organ
offspring from parents with different forms of the same trait
hybrids
how a trait is expressed
phenotype
how many elements are on the periodic table of elements
118