Biology 102 Stakes Test 5

Which of the following is more fitA 500 year old bristlecone pine tree that produced 100 offspring every year
All of the following are true of evolution exceptIndividuals adapt their genes to improve survival
Which is necessary for natural selection to proceedAll of the above
Natural selection causesChanges in Allele frequencies within a population
All of the following are true of natural selection exceptIt works best in genetically uniformed populations
Natural selection that favors survival of extreme phenotypes of a population is called:Diversifying selection
When extreme phenotypes are selected against and disappear, which pattern of natural selection is at work?Stabilizing selection
Allele frequencies of a population can change byAll of the above
The biological species concept defines a species asMembers of a population that interbreed and produce fertile offspring
Frog species mate at different times of the year. This is an example of which type of reproductive isolation?Temporal isolation
Reproductive isolation based on location or geography is referred to as:Ecological isolation
Pollen from a tomato plant lands on grapefruit flower. The pollen fails grow a pollen tube. This is an example of:Gametic isolation
Which of the following can influence the evolutions of a species?All of the above
Which of the following best points to a close evolutionary relationship between two different species?Both species have very similar DNA
The proportion of alleles present in a gene pool is called the ________ and is an important tool in measuring evolutionary changes.Allele frequency
In a population of 100 mice, if the recessive allele frequency is 0.25 how many copies of the recessive alleles are found in the population?50
Which of the following does not influence allele frequencies in a population?All of the above influence allele frequencies in a population
Inbreeding can lead to a decrease in genetic diversity and _____Inbreeding Depression
Which of the following is not an example of adaptive evolution ?All choices are non adaptive
You examine a population and note that it’s allele frequency for a particular gene are p=0.55 and q=0.45. If you come back and examine ….The population is evolving
If you examine a population for a particular gene where B represents the dominate allele and b represents the recessive allele l, you find that the allele frequencies for this gene …:0.42
Which of the following situations would represent a situation that reduces the effect of genetic driftThe population is very large
If you examine the gene pool of a population due to genetic drift, what do you predict will occur with the allele frequenciesThere is no way to tell how p or q will change
Which of the following conditions can lead to two populations becoming different speciesAll of the above can lead to two populations becoming different species
Which of the following statements is falseThe 13 diff species of finches flew to the Galápagos Islands and separated themselves in response to diff food environments
All of Darwins Finches came from a single species with a normal beak. Which of the following factors can explain the development of the variety of breaks seen in those finches todayA,B,+ C (answer D)
Which of the following statements regarding the dating of fossils is false ?Fossils can be dated using a microscope to examine tissue
Which of the following scenarios would be least likely to result in a fossilA jelly fish that dies and slowly floats to the bottom of the ocean
Which of the following changes in the evolutionary history of horses is documented by the fossil record?A gradual decrease in the number of toes
Which of these characteristics would be expected to apply to a transitional fossil?B and C (answer E)
Which of the following sequence places Tiktaalik in the correct evolutionary order?Lobe-finned fish, Tiktaalik, tetrapods
What can we learn about vertebrae evolution from Tiktaalik that we did not know before??How vertebrates evolved tetrapod limbs
The variation in shape and function of the forelimb in tetrapods is a result of _______Evolutionary adaptations to different environments
The forelimb of a chicken and a primate contain many of the same bones arranged in the same order. This is an example of _____________.Homology
All organisms share same 4 nucleotides, _________ make eachSequence