Chpt. 5 Vocab Flashcards
What is Dominant trait
The traits observed in the first generation when parents that have different traits are bred.
What is Heredity
The passing of genetic traits from parent to offspring.
What is Recessive trait
A trait that reappears in the second generation after disappearing in the first generation.
What is Gene
One set of instructions for an inherited trait.
What is Allele
One of the alternative forms of gene that governs a characteristic.
What is Phenotype
An organism’s appearance or other detectable characteristics.
What is Genotype
The entire genetic makeup of an organism.
What is Probability
The like hood that a possible future event will occur in any given instance of the event.
What is Homologous chromosomes
Chromosomes that have the same sequence of genes and the same structure.
What is Meiosis
A process in cell division during the number of chromosomes decreases to half the original number by two divisions of the nucleus.
What is Sex chromosomes
One pair of chromosomes that determine the sex of an individual.
What is Pedigree
A diagram that shows the occurrence of a genetic trait in several generations of a family.
