Biology
Introductory Biology, Biology 1407 MWF 11:00. TAMU-CC.
Working version of the 1st lecture exam, as of 19 January 2014 1. Science can prove hypotheses to be false because: 2. In a population: phenotype
Average number of offspring per individual
Very small nose
5.5
Small nose
6.0
Medium size nose
10.7
Large nose
20.7
What is the relative fitness of organisms with small noses? 3. In the above population, assuming that at one time the population followed a normal curve for nose size, which mode of selection occurred? 4. Abbie is conducting an experiment evaluating the performance of sunflower plants from seeds produced during the winter and sunflower plants from seeds produced during the summer. Abbie’s null hypothesis is: 5. The prediction for which Darwin had evidence that is similar to our modern evidence is: 6. In a population of plants, the following data are collected. Time 1. Time 2. p= 0.7 p= 0.7 q= 0.3 q= 0.3 p2= 0.49 p2= 0.53
2pq= 0.42 2pq= 0.35 q2= 0.09 q2= 0.12 The best explanation for the trend seen in these data is: 7. How would you know if a population is in HWE? 8. Knell (2004) argues that soon after syphilis appeared in Europe that: 9. Knell (2004) argues that the less virulent disease strains of syphilis achieved _____ transmission rates than more virulent disease strains of syphilis soon after syphilis appeared in Europe.
a. higher b. lower 10. There are two different ways the water snail, Lymnaea peregra, can coil: dextral and sinistral. Dextral coiling is caused by the dominant allele (D) and sinistral is caused by the recessive allele (d). Although this is a completely dominant trait, the genotypes of all individuals in a population were determined yielding the following data:
DD
Dd dd Conduct a χ square test to determine if the population is evolving. Show all your work. In your answer, be sure you 1. clearly state your
Working version of the 1st lecture exam, as of 19 January 2014 1. Science can prove hypotheses to be false because: 2. In a population: phenotype
Average number of offspring per individual
Very small nose
5.5
Small nose
6.0
Medium size nose
10.7
Large nose
20.7
What is the relative fitness of organisms with small noses? 3. In the above population, assuming that at one time the population followed a normal curve for nose size, which mode of selection occurred? 4. Abbie is conducting an experiment evaluating the performance of sunflower plants from seeds produced during the winter and sunflower plants from seeds produced during the summer. Abbie’s null hypothesis is: 5. The prediction for which Darwin had evidence that is similar to our modern evidence is: 6. In a population of plants, the following data are collected. Time 1. Time 2. p= 0.7 p= 0.7 q= 0.3 q= 0.3 p2= 0.49 p2= 0.53
2pq= 0.42 2pq= 0.35 q2= 0.09 q2= 0.12 The best explanation for the trend seen in these data is: 7. How would you know if a population is in HWE? 8. Knell (2004) argues that soon after syphilis appeared in Europe that: 9. Knell (2004) argues that the less virulent disease strains of syphilis achieved _____ transmission rates than more virulent disease strains of syphilis soon after syphilis appeared in Europe.
a. higher b. lower 10. There are two different ways the water snail, Lymnaea peregra, can coil: dextral and sinistral. Dextral coiling is caused by the dominant allele (D) and sinistral is caused by the recessive allele (d). Although this is a completely dominant trait, the genotypes of all individuals in a population were determined yielding the following data:
DD
Dd dd Conduct a χ square test to determine if the population is evolving. Show all your work. In your answer, be sure you 1. clearly state your