Heredity Flashcards
heredity
the passing of genetic traits from parents to offspring.
dominant trait
the stronger trait.
recessive trait
the weak trait.
genes
one set of instructions for inherited traits.
allele
an alternative trait that can make such as hair color.
phenotype
an organism’s appearance or other detectable traits.
genotype
the entire genetic makeup of an organism.
possibility
the likely hood of a possible future event will occur.
miosis
a process in which cell division during which the number of chromosomes to half the original number by two divisions of the nucleus, which results in the production of sex cells.
sex chromosomes
one of the pairs of chromosomes that determine the sex of the 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 traits that a living thing inherits and needs to live.
nucleotide
in a nucleic acid chain, a submit that consists of sugar, a phosphate, and a nitrogenous base.
mutations
a change in the nucleotide-base sequence of a gene or DNA molecule.
RNA
a molecule that is present in all living cells and that plays a role in protein production.
