Chupp Biology 121 test 3 Exam Questions And Answers

Chupp Biology 121 test 3 Exam Questions And Answers Genotype - ANS the genetic makeup of a cell or organism phenotype - ANS a cell or organism observed characteristics. numerous different genotypes - ANS A population with a gene pool that has many variants in many different genes will consist of organisms with Mutations - ANS the ultimate source of differences among genotypes polymorphism - ANS Geneticists use the term _________ to refer to any genetic difference among individuals that is sufficiently common that it would almost certainly be present in a group of 50 randomly chosen individuals height, weight, eye color - ANS Examples of phenotype environment - ANS It is most accurate to say that a phenotype results from an interaction between the genotype and the alleles - ANS The different forms of any gene are called ______ , and they correspond to different DNA sequences (polymorphisms) homozygous - ANS An individual who inherits an allele of the same type from each parent is said to be first; second - ANS The _____ letter or symbol in each pair indicates the allele inherited from one parent, and the ______ indicates the allele inherited from the other parent heterozygous - ANS individuals who inherit different types of allele from their parents are disease - ANS Some genetic differences are major risk factors for genotype-by-environment interaction - ANS a phenotype is the result of an interplay between genes and the environment harmful - ANS Not all genetic differences are large genomes and abundant noncoding DNA - ANS Neutral mutations are therefore especially likely to occur in organisms with TAS2R38 - ANS The ability or inability to taste PTC is due largely, but not exclusively, to alleles of a single gene called _______ that encodes a taste receptor in the tongue infectious disease - ANS In human populations, beneficial mutations are often discovered through their effects in protecting against DNA typing - ANS Areas of the genome with variable numbers of tandem repeats are useful in variable number tandem repeat (VNTR) - ANS A genetic difference in which the number of short repeated sequences of DNA differs from one chromosome to the next. 30,000 - ANS There are about ____ different variable number tandem repeat locations in the human genome DNA typing - ANS the analysis of a small quantity of DNA can be as reliable for identifying individuals as fingerprints. This is why it is often called DNA fingerprinting