Bio Study Quiz This quiz is to help me ace my biology midterm coming up soon. Mutation- evolution Demmings published on March 17, 20133 responses 1 « Previous Next » Questions in vertical order 1/19 What is the function of MutS protien in methyl-directed mismatch repair? To exercise the mismatched base pair to find mismatches to bind to DNA polymerase to make a cut in the nonmethylated DNA strand to digest the nonmethylated DNA strand 2/19 The process of evolutionary changes that result in formation of new species and groups of species is called temporal evolution artificial selection macroevolution serial evolution 3/19 What is the Ames test? Type answer. Hint: 16 characters 4/19 The effects of inbreeding is an increase of homozygotes in succeeding generations a decrease of heterozygotes in succeeding generations decrease the mean fitness of a population an increase likelihood of recessive traits appearing in succeeding generations all of the choices are correct 5/19 The ability of glucose to repress the lac operon depends on a small effector molecule. What is the name of this effector molecule? CAMP ADP CDNA 6/19 What are the assumption of the Hardy-Weinberg equation Hint: 5 choices Large Population size One allele in the population Random mating Disassortive mating Natural Selection No Selection No mutation No migration Evolution is occuring 7/19 Fundamental similarity die to descent from a common ancestor is called Convergence Analogy Homology Commonality 8/19 There are 2 types of birds one with blue bellies and one with white bellies. The blue bellies are more common. Predation on the blue bellies increases causing there to be more white bellies. This is an example of? Type answer. Hint: 19 characters 9/19 What would be the frequency of pink flower in a population where the allele frequency Cr is 0.4 and the population is in Hardy-Winberg equilibrium? 4% 16% 20% 80% 48% 10/19 What would result from a single nucleotide deletion within the coding sequence of a structural gene? a missense point mutation a frameshift mutation a nonsense point mutation 11/19 A frog and a toad mate. The frog drops its sperm onto the toads eggs as they are being laid, offspring don't develop because the sperm cannot fertilize the eggs. This is an example of.. Mechanical Isolation Habitat Isolation Gametic Isolation 12/19 A species that is naturally found only in a particular location is called endemic exotic extinct 13/19 What are the Benefits of gene regulation? Hint: 3 choices helps reduce mutations conserves resources Allows cells differentiation in multi-cellular organisms Doesn't allow differentiation in multi-cellular organisms allows different gene to be expressed over the course of development 14/19 Which of the following does not occur during transcriptional regulation in eukaryotes The gene must be transcribed Chromatin is converted to the closed conformation The RNA must be processed and exported for the nucleus 15/19 Allopatric speciation occurs because a population merges with another population of the same species becomes geographically isolated and undergoes genetic change become extinct and is replaced by a population of a different spcies shows no genetic change from generation to generation hubrid sterility occurs 16/19 Which concept stats that "the preferred hypothesis is the one that is the simplest for all the characters and their states" when deciding which hypothesis to accept when deciphering a cladogram? Maximum likelihood principle of parsimony bayesian methos 17/19 Natural Selection is one mechanism to change allele frequency in a gene pool, what is the name of the machanism that fosters change in allele frequencies due to random chance? Type answer. Hint: 13 characters 18/19 The term evolution is used to describe changes in the number of individuals in a population any change in an individual hertitable changes in characteristics of a population any change in an individual organism that occurs in somatic cells 19/19 Eukaryotic DNA methylation occurs on which base Cytrosine Adenine Thymine Guanine
