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the first stage of mitosis or meiosis in eukaryotic cell division, during which the nuclear envelope breaks down and strands of chromatin form into chromosomes
the stage in mitosis or meiosis in which the duplicated chromosomes line up along the equatorial plate of the spindle
the final stage of mitosis or meiosis, during which a nuclear membrane forms around each set of new chromosomes
Surface area to volume ratio
Determines a cells efficiency to take in and out nutrients. When a cell is too large it can die from starvation or poisoning from waste. Usually once the cell is to large it will divide.
Do not have a properly functioning cell-cycle system; instead, they divide excessively and can invade other tissues of the body - UNCONTROLLED CELL DIVISION
Process by which two daughter cells are formed, each containing the same number of chromosomes. CREATES BODY CELLS
a process in 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
exchange of genetic material between homologous chromosomes during prophase I of meiosis
adenosine triphosphate, an organic molecule that acts as the main energy source for cell processes; composed of a nitrogenous base, a sugar, and three phosphate groups
adenosine diphosphate; molecule that ATP becomes when it gives up one of its three phosphate groups
Set of reactions in photosynthesis that use energy from light to produce ATP and NADPH
set of reactions in photosynthesis that do not require light; energy from ATP and NADPH is used to build high-energy compounds such as sugar; also called the Calvin cycle
in cellular respiration, series of ananerobic chemical reactions in the cytoplasm that breaks down glucose into pyruvic acid; forms a net profit of two ATP molecules
Citric acid cycle
in cellular respiration, series of chemical reactions that break down glucose and produce ATP; energizes electron carriers that pass the energized electrons on to the electron transport chain
oxygen is called this because it is the last molecule in the electron transport chain to accept electrons. Bonds with H2 and makes water (H2O)
A process that supplies energy when there is small or no oxygen. forms 2 molecules of ATP
chromosomes that have the same sequence of genes, that have the same structured, and that pair during meisosis
law of segregation
Mendel's law that states that the pairs of homologous chromosomes separate in meiosis so that only one chromosome from each pair is present in each gamete
Law of independent assortment
mendel's law that each member of a pair of homologous chromosomes separates independently of the members of other pairs so the results are random
creates a blended phenotype; one allele is not completely dominant over the other
A chromosomal alteration in which the organism possesses more than two complete chromosome sets. It is the result of an accident of cell division.
traits that are dominant or recessive depending on gender, disorder pertinent to gender, ie females cant be colorblind..traits can only be carried or present on X or female gene
Deoxyribonucleic acid; the genetic material that carries information about an organism and is passed from parent to offspring.
(genetics) the organic process whereby the DNA sequence in a gene is copied into mRNA. IN NUCLEUS
the process of converting the information in a sequence of nitrogenous bases in mRNA into a sequence of amino acids in a protein. IN RIBOSOMES
a mutation, such as the insertion or deletion of a nucleotide in a coding sequence, that results in the misreading of the code during translation because of a change in the reading frame
(genetics) a kind of mutation in which the order of the genes in a section of a chromosome is reversed
change to a chromosome in which a fragment of one chromosome attaches to a nonhomologous chromosome
Name for the time in earths early history that accounts for ninety percent of earth's time, but only cellular organisms lived. BACTERIA
an era occurring between 570 million and 230 million years ago, characterized by the advent of fish, insects, and reptiles
An era with the Triassic, Jurassic and Cretaceous periods from 251 to 65.5 M years ago, marked by dinosaurs, gymnosperms and angiosperms, as well as the mass extinction at the end of the period. First BIRDS
noting or pertaining to the present era, beginning 65 million years ago and characterized by the ascendancy of mammals. HUMANS
miller and urey
Experiments suggested how mixtures of the organic compounds necessary for life could have arisen from similar compounds present on a primitive Earth
structures that do not have a common evolutionary origin but are similar in function
when two or more species sharing a common ancestor become more different over time
the process by which unrelated species become more similar as they adapt to the same kind of environment
a theory of evolution holding that evolutionary change in the fossil record came in fits and starts rather than in a steady process of slow change
movement of alleles into or out of a population due to the migration of individuals to or from the population
a system for giving each organism a two-word scientific name that consists of the genus name followed by the species name
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