a factor that masks the presence of another factor(gene)
a contrasting form of a gene
the genetic makeup of an organism
the physical appearance of an organism
when both pairs of alleles of a pair are the same.
any substance that causes cancers
species that changes over time
all the genes in a population
the science of grouping organism
Scientist known for classifying animals based on their habitat
scientist who gave us the modern system of classification
a mutation that results in death
a three nitrogen base sequence that is found on mRNA and codes for an amino acid
failure of chromosomes to separate during meiosis
transmission of characteristics from parent to offspring
a pair of chromosome that determine the sex of an organism
a diagram used to predict the probability that certain traits will be inherited by offspring
Scientist who studies heredity
the nitrogen base that replaces thymine in RNA
the enzyme that initiates DNA Transcriptase
the scientific principle that living things only come from other living things.
a trait that makes an individual successful in its environment.
numerous abnormal cells that result from uncontrolled, abnormal cell division
a genetically determined characteristic (flower color)
a structure in an organism that is reduced in size and function.