heredity Flashcards
(16 cards)
heredity
the passing of genetic traits from parent to offspring
dominate trait
the trait observed in the first generational when parents that have different traits are bad
recessive
a trait reapers in the second generation when parents with different traits are bred
gene
one set of instructions for an inherited trait
allele
one of the alternative forms of a gene that governs a characteristic such as hair color
phenotype
an organism’s appearance or other detectable characteristic
genotype
the entire genetic makeup of an organism also the combination of genes for one or more specific traits
probility
the likelihood that a possible future event will occur in any given instance of the event
meiosis
a process in cell division during which 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 an individual
pedigree
a diagram that shows the occurrence of a genetic trait in several generations of a family
DNA
a molecule that is present in all living cells and that contains the information that determines the trait that a living thing inherits and needs to live
Nucleotide
in a subunit consists of a sugar a phosphate and a nitrogenous base
Multations
a change in the nucleotide-base sequence of a gene or DNA molecule
RNA
a molecule that is in all living cells and that plays a role in protein production
Ribosome
a cell organelle composed of RNA and protein the site of protein synthesis
