DAT Practice Test Questions and answers

apoptosis mediated cell death Change salt concentrations or pH how to remove a peripheral protein 00:25 01:29 add a detergent how to remove an integral protein a light centrifuge precipitate out cells or nuclei a heavy centrifuge extract small, soluble proteins ammonia, methane, water, hydrogen the Miller-Urey experiment used... muscle cells microfilaments are found in... turgid means it becomes swollen plasmolysis means it become shrunken spine the notochord becomes the... poikilothermic another word for heterothermic zona pellucida what binds the sperm phrenology the study of the contours of the brain vectors these do gene-splicing cladogram determines if organisms are related, but not based on genes gel electrophoresis determine molecular similarity karyotype tells the size, shape, and number of chromosomes PCR used to clone Northern blotting studies RNA messages and gene expression DNA fingerprinting keeping individual's DNA on file p + q = 1 (p + q)^2 = 1 p^2 = homozygous recessive pp q^2 = homozygous dominant qq Hardy-Weinberg equilibrium equation brackish water mix between salt and fresh water eustary where fresh water meets salt water Deciduous forests do have winters, but they are not characterized as harsh or very snowy and this biome is known for having 4 distinct seasons each year. The savanna biome has small grasses, small shrubs, scattered trees, and have both dry and rainy seasons. The tundra biomes are best defined as regions that have short growing season, cold temperatures all year round and have a layer of permafrost over the soil. The taiga biome has long, cold winters and very short rainy seasons, does have vegetation with most of the tree covering being provided by conifers like spruce, fir and pine trees. Tropical deserts are characterized as having extremely high temperatures with sporadic rainfall.