Radiometric dating vs radioactive dating

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.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.

radiometric dating vs radioactive dating-56

The division of environmental resources by coexisting species populations such that the niche of each species differs by one or more significant factors from the niches of all coexisting species populations.

(1) In aerobic organisms, the intake of oxygen and the liberation of carbon dioxide.

An isotope, an atomic form of a chemical element, that is unstable; the nucleus decays spontaneously, giving off detectable particles and energy.

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 type of embryonic development in deuterostomes in which the planes of cell division that transform the zygote into a ball of cells are either parallel or perpendicular to the polar axis, thereby aligning tiers of cells one above the other.

A method of determining the age of fossils and rocks using half-lives of radioactive isotopes.

An enzyme whose synthesis is inhibited by a specific metabolite.

A protein that suppresses the transcription of a gene.

An offspring whose phenotype differs from that of the parents.

A DNA molecule made in vitro with segments from different sources.

A type of nucleic acid consisting of nucleotide monomers with a ribose sugar and the nitrogenous bases adenine (A), cytosine (C), guanine (G), and uracil (U); usually single-stranded; functions in protein synthesis and as the genome of some viruses. A cell organelle constructed in the nucleolus, functioning as the site of protein synthesis in the cytoplasm.

Tags: , ,