Question | Answer |
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 |