Terms : Hide Images
| 430077787 | semiconservative replication | method of DNA replication in which parental strands separate, act as templates, and produce molecules of DNA with one parental DNA strand and one new DNA strand | |
| 430077788 | B cells | a white blood cell that make antibodies | |
| 430077789 | T cells | an immune system cell that coordinates the immune system and attacks many infected cells | |
| 430077790 | macrophage | an immune-system cell that engulfs pathogens | |
| 430077791 | promoter | A specific nucleotide sequence in DNA that binds RNA polymerase and indicates where to start transcribing RNA. | |
| 430077792 | point mutation | gene mutation involving changes in one or a few nucleotides | |
| 430077793 | base-pair substitution | A point mutation; the replacement of one nucleotide and its partner in the complementary DNA strand by another pair of nucleotides. | |
| 430077794 | insertion | A mutation involving the addition of one or more nucleotide pairs to a gene. | |
| 430077795 | frameshift | A nucleotide is inserted or deleted, changing where the coding for entirely different amino acids. | |
| 430077796 | aneuploidy | A chromosomal aberration in which one or more chromosomes are present in extra copies or are deficient in number. | |
| 430077797 | polypoidy | condition when an organism has extra sets of chromosomes | |
| 430077798 | genome | the ordering of genes in a haploid set of chromosomes of a particular organism | |
| 430077799 | recombinant DNA | genetically engineered DNA made by recombining fragments of DNA from different organisms | |
| 430077800 | recognition sequences | specific sites on DNA that restriction enzymes cut | |
| 430077801 | restriction fragments | DNA segment resulting from cutting of DNA by a restriction enzyme | |
| 430077802 | polymerase chain reaction | A method of producing thousands of copies of DNA segment using the enzyme DNA polymerase | |
| 430077803 | ECOLOGY | ... | |
| 430077804 | clumped | describing a dispersion pattern in which individuals are aggregated in patches | |
| 430077805 | random spacing | unpredictable, patternless dispersion (relatively rare in nature) | |
| 430077806 | uniform | evenly spaced | |
| 430077807 | biotic potential | the maximum reproductive rate of an organism, given unlimited resources and ideal environmental conditions | |
| 430077808 | limiting factors | Conditions in the environment that put limits on where an organism can live | |
| 430077809 | density-dependent factors | Limiting factors (such as competition, predation, parasitism, and disease) that are affected by the number of individuals in a given area | |
| 430077810 | density-independent factors | Limiting factor that affects all populations in similiar ways, regardless of population size. | |
| 430077811 | commensalism | the relation between two different kinds of organisms when one receives benefits from the other without damaging it | |
| 430077812 | parasitism | the relation between two different kinds of organisms in which one receives benefits from the other by causing damage to it (usually not fatal damage) | |
| 430077813 | aposematic coloration | conspicuous coloration or markings of an animal serving to warn off predators | |
| 430077814 | Batesian mimicry | A type of mimicry in which a harmless species looks like a species that is poisonous or otherwise harmful to predators. | |
| 430077815 | mullerian mimicry | evolution of two species, both of which are unpalatable and, have poisonous stingers or some other defense mechanism, to resemble each other | |
| 442391594 | Human Physiology | ... | |
| 442391595 | Artery | a blood vessel that carries blood from the heart to the body | |
| 442391596 | vein | a blood vessel that carries blood from the capillaries toward the heart | |
| 442391597 | cappilarie | Smallest blood vessel | |
| 442391598 | Erythrocytes | red blood cells | |
| 442391599 | Leukocytes | white blood cells, or WBC, form in the bone marrow and are part of the body's nonspecific defenses and the immune system | |
| 442391600 | Thrombocytes | platelets, blood-clotting cell fragments | |
| 442391601 | Thromboplasin | substance released by paltelets; reacts with prothrombin to form thrombin | |
| 442391602 | Prothrombin | a protein in blood plasma that is the inactive precursor of thrombin | |
| 442391603 | thrombin | an enzyme that acts on fibrinogen in blood causing it to clot | |
| 442391604 | Fibrinogen | a protein present in blood plasma | |
| 442391605 | fibrin | a white insoluble fibrous protein formed by the action of thrombin on fibrinogen when blood clots | |
| 442391606 | SA node | a specialized bit of heart tissue that controls the heartbeat | |
| 442391607 | systolic | measurement of blood pressure taken when the heart is contracting and forcing blood into the arteries | |
| 442391608 | diastolic | the blood pressure during that part of the heartbeat when the hearts venticles are relaxing | |
| 442391609 | ductless | Endocrine glands release hormones directly into the blood because they are __________. | |
| 442391610 | Tropic hormones | hormones that stimulate other glands to release their hormones | |
| 442391611 | Pheremones | chemical signals released by organisms when they are ready to breed | |
| 442391612 | urea | waste product formed in the liver, filtered out of the blood by the kidneys, and excreted in urine | |
| 442391613 | uric acid | nitrogenous waste excreted in the urine | |
| 442391614 | ammonia | A small, very toxic molecule (NH3) produced by nitrogen fixation or as a metabolic waste product of protein and nucleic acid metabolism. |
