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biology vocab

biolagy vocab

DNA a molecule that contains information that determines the traits that a living thing needs to survive.
chromosomes in a eukaryotic cell, one of the structures in the nucleus that are made up of DNA, andprotein; in prokaryotic cells, the main ring of DNA
cell cycle the life cycle of a cell
innerphase the period of a cell cycle during activities such as cell growth and protein synthesis occur without visible signs of cell division
mitosis in eukaryotic cells a process of cell division forms two new nuclei each has the same number of chromosomes.
cytokinesis the division of the cytoplasm of a cell
homologous chromosomes chromosomes that have the same sequence of genes, and structur
meiosis a process in cell division during which the number of chromosomes decrease to half the original number by two divisions of the nucleus which results in the production of sex cells
asexual reprodection reproduction that does not involve the union of sex cells
sexual reproduction Reproduction that involves the union of the sex cells
fertilization the union of the male and female gamete to form zygote
hereditary the passing of a genetic
gene one set of instructions for an inherited trait
genotype the entire genetic makeup of an organism
phenotype an organisms apperence
dominate in genetics describes the allele that is fully expresses
recessive describes the allele that will be masked unless the organism is homozygous
incomplete dominence when two alleles are expressed such as the phenotype of a heterozygous individual is an intermediate of the phenotypes of the two homozygous parents
codominance a condition in which two alleles are expressed such that the phenotype of a heterozygous individual is a combination of the phenotypes of the two homozygous parents
punnett square a graph used to predict the results of a genetic cross
probability the likely hood of an event to occur due to current events
ratio the comparison of two numbers
pedigree a diagram that shows the occurrence of a genetic trait in several generations of a family
Created by: burnsze