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explain point mutations gene mutations involving single genes occur by addition substitution or deletion of a single base in dna such mutations
explain the term mutationsmutations are changes in the genetic structure of an organism that occur at random or are the results of environmental
why did the pueblo people revolt against the ish in 1680 what were the results of this revolt ish exploration and conquest-spain was the first
what is multiple alleles obviously diploid organisms such as humans can have only two different alleles for a certain gene locus however new alleles
explain the pair of chromosomes and sex chromosomesmorgan also noticed that one pair of chromosomes is different in male and female flies one of the
why were microbes the most influential aspect of the columbian exchange smallpox and other diseases-the most influential aspect of the columbian
what is chromosome mapping in phenotypic traitchromosome mapping by noting how often a gene segment associated with a specific phenotypic trait
what is the role of linked traits in geneticsin his study of inheritance in the fruit fly morgan observed that certain genes are distributed together
what is cytogeneticsbefore the advent of modern technology the american biologists thomas hunt morgan gw beadle h sturtevant barbara mcclintock and
explain the factor chromosomal inheritancea huge step forward in our understanding of heredity came in 1902 when a biologist named walter s sutton
what was the columbian exchange what was exchanged between europeans and indians when europeans and indians came into contact they
what did columbus call the natives he encountered in the western hemisphere why what other terms refer to these people and their descendantsthe age
what is mendels crosses in genetics explain breiflymendel found that if he transferred pollen from a green-seed strain to a yellow-seed strain and
explain pea plants in geneticspea plants in pea plants sperm are located in the pollen grains produced by the anthers of the flower eggs are
what is powerpower is how fast work is done or energy is used example remember that cheeseburger 14 pound i lifted up one meter to do one
how indians basic worldview differ from europeans indians lives and worldviews-despite the extraordinary diversity of indian peoples their cultures
what is frictionwhen we think about friction there is one more place for energy to go - heat when you push a book across a table does the energy of
define living of indians of western americaindians of western america-in the desert southwest many indians developed sizeable villages with
q what is si unit of energyansthe si unit of energy is called the joule a joule is a pretty small mount of energy so often chemists will use the
how did the way of life of the nomadic indians of the great plains differ from that of the woodland indiansthe great plain-on the
what was the iroquois confederacy how long did it endureindian cultures in north america-as indians spread throughout north america they developed an
q what is basic diffrence between heat and temperatureans heat is energy which flows from hot objects to cooler ones it flows because of the
when and how did humans first arrive in north americamany scholars estimate the population of the western hemisphere to have been
describe us history timelinethe us history interactive timeline gives you a broad overview of the 10 eras of us history covered in this course for
find the perimeter of an irregulary shapep blocks of land didvided into 4 triangles ab12m by 15m bc 15m by 60m cd 24m by25m da 25m by