Advanced Biology Genetics

Advanced Biology Genetics Phenotype ️An organism's physical appearance, or visible traits. Homozygous ️An organism that has two identical alleles for a trait Filial ️Second generation self-pollination ️the transfer of pollen grains from an anther to the stigma of the same flower or to the stigma of another flower on the same plant monohybrid corss ️cross involving a single trait trisomy-21 ️the presence of an extra copy of chromosome 21, which causes Down syndrome in humans Patau's Syndrome ️aka trisomy-13 inherited ️a trait passed genetically from parent to offspring 47, +21 ️chromosome nomenclature for down syndrome strain ️A genetically related blookline possessing distinguishing characteristics such as type, color, or coat, and the ability to pass the characteristics to the offspring. probability ️A number that describes how likely it is that an event will occur dominant ️Describes a trait that covers over, or dominates, another form of that trait. Punnett square ️A chart that shows all the possible combinations of alleles that can result from a genetic cross Principle of Segregation ️During meiosis, the alleles separate from each other to make the gametes Dihybrid Cross ️A cross between two individuals, concentrating on two definable traits 47, +13 ️the chromosome nomenclature for patau's syndrome? Principle of Dominance & Recessiveness ️states that some alleles are dominant and others are recessive cross pollination ️Pollen of one plant to the stigma of another trisomy-18 ️Edwards syndrome Law of Independent Assortment ️Each pair of alleles segregates independently of each other pair of alleles during gamete formation pollination ️The transfer of pollen from male reproductive structures to female reproductive structures in plants Triple X Syndrome ️A genetic abnormality in which a female has an extra X sex chromosome Turner's Sydrome ️result of a deletion of part or all of an X chromosome heterozygous ️An organism that has two different alleles for a trait 47, XXX ️chromosome nomenclature for triple X syndrome homozygous ️An organism that has two of the same alleles for a trait recessive gene ️Gene of a trait that is hidden when the dominant gene is prese