Heredity Vocab Flashcards
(14 cards)
Herenity
the passing of genetic traits from parent to offspring
Dominant trait
the trait observed in the first generation when parents that have different traits are bred.
Recessive trait
a trait that reappears in the second generation after disappearing in the first generation when pare with different traits are bred.
Genes
a unit of heredity that is transferred from a parent to an offspring determining what characteristics it will have.
Alleles
one of the alternative forms of a gene that governs a characteristic, such as hair color.
Phenotype
an organism’s appearance or other detectable characteristics.
Genotype
the entire genetic makeup of an organism; also the combination of genes for one or more specific traits.
probability
the likelihood of something happening.
Meiosis
a process in a cell division during which the number of chromosomes decreases to half the original number by two divisions of the nucleus, which results in the production of sex cells.
sex chromosomes
one of the pair of chromosomes that determine the sex of an individual
Pedigree
a diagram that shows the occurrence of a genetic trait in several generations of a family.
DNA
indicates who you are.
Nucleotide
a compound consisting of nucleoside linked to a phosphate. They make the basic structural units like nucleic acid such as DNA.
Mutations
permanent alteration of the nucleotide sequence of the genome of an organism , virus, or extra chromosomal DNA or other DNA elements.
