Radiometric dating vs radioactive dating
Radiometric dating vs radioactive dating - sex dating in chattanooga tennessee
A pattern of development, such as that of a mammal, in which the early blastomeres retain the potential to form the entire animal.The contribution of one genotype to the next generation compared to that of alternative genotypes for the same locus.
A method paleontologists use for determining the ages of rocks and fossils on a scale of absolute time, based on the half-life of radioactive isotopes. On or in a cell, a specific protein molecule whose shape fits that of a specific molecular messenger, such as a hormone.A specific sequence of nucleotides at which a restriction enzyme cleaves a DNA molecule.The idea that specific mating adaptations become fixed in a population and form the basis of species identification.The vertebrate class of reptiles, represented by lizards, snakes, turtles, and crocodilians.A measure of the clarity of an image; the minimum distance that two points can be separated and still be distinguished as two separate points.A hormone produced by neurosecretory cells in the hypothalamus of the vertebrate brain that stimulates or inhibits the secretion of hormones by the anterior pituitary. Nucleotide sequences, usually noncoding, that are present in many copies in a eukaryotic genome.
The repeated units may be short and arranged tandemly (in series) or long and dispersed in the genome. A Y-shaped point on a replicating DNA molecule where new strands are growing.A specific sequence on a DNA strand that is recognized as a "cut site" by a restriction enzyme.A brain circuit involved with alertness and direction of attention to selected events; consists of a loose network of interneurons running through the brainstem, plus certain neurons in the thalamus that function as an extension of this network.← BACK A bacterial plasmid carrying genes that confer resistance to certain antibiotics.The concept that in certain (r-selected) populations, a high reproductive rate is the chief determinant of life history.An offspring whose phenotype differs from that of the parents.