click below
click below
Normal Size Small Size show me how
Mendel's Law
Vocabulary
| allele | any of several forms of a gene, usually arising through mutation, that are responsible for hereditary variation. |
| fertilization | the union of male and female gametic nuclei. |
| gametes | a mature sexual reproductive cell, as a sperm or egg, that unites with another cell to form a new organism. |
| gene | the basic physical unit of heredity; a linear sequence of nucleotides along a segment of DNA that provides the coded instructions for synthesis of RNA, which, when translated into protein, leads to the expression of hereditary character. |
| genotype | the genetic makeup of an organism or group of organisms with reference to a single trait, set of traits, or an entire complex of traits. |
| heterozygous | having dissimilar pairs of genes for any hereditary characteristic. |
| homologous | having the same alleles or genes in the same order of arrangement |
| chromosome | any of several threadlike bodies, consisting of chromatin, that carry the genes in a linear order: the human species has 23 pairs, designated 1 to 22 in order of decreasing size and X and Y for the female and male sex chromosomes respectively. |
| homozygous | having identical pairs of genes for any given pair of hereditary characteristics. |
| hybrid | a person or group of persons produced by the interaction or crossbreeding of two unlike cultures, traditions, etc. |
| assort | to group with others of the same or similar kind; connect or identify as of a similar class; associate |
| meiosis | part of the process of gamete formation, consisting of chromosome conjugation and two cell divisions, in the course of which the diploid chromosome number becomes reduced to the haploid. |
| phenotype | the appearance of an organism resulting from the interaction of the genotype |
| probability | the extent to which an event is likely to occur, measured by the ratio of the favorable cases to the whole number of cases possible. |
| Punnett spuare | The diagram used by biologists to determine the probability of an offspring having a particular genotype |
| zygote | a diploid cell resulting from the fusion of two haploid gametes; a fertilized ovum. |