1001 fall04 exam3

1001 fall04 exam3 - Name: Class: Date: Form: A November 9,...

Info iconThis preview shows pages 1–6. Sign up to view the full content.

View Full Document Right Arrow Icon
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 2
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 4
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 6
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Name: Class: Date: Form: A November 9, 2004 Biology 1001 — Section 9 Dr. Christopher Gregg Instructions: 1. Read each question and all the choices carefully before answering 2. Make sure your name (Last, First) and 55# are bubbled in on the Scantron 3. When finished, turn in your Scantron sheet and keep your exam booklet Exam 3 Multiple Choice Idennfi the letter of the choice that best completes the statement or answers the question. C 1. 2. 3. Who discovered the Laws of Inheritance in the 18005? a. Darwin c. Mendel b. T.H_ Morgan 4: Gregg According to the Law of Segregation, in an organism with the genotype E, __. a. all the gametes will have allele A b. all the gametes will have allele a c. 1/2 the gametes will have A and 1/2 will have a d. 3/4 of the gametes will have A and 1/4 will have a Various forms of a gene at a given locus are called a. alleles c. loci b. autosomes d. chromatlds The most accurate description of an organism with the genotype Aa is . a. homozygous dominant c. homozygous recessive b. heterozygous d. big A, little a In garden pea plants, the allele for purple flowers (P) is dominant to the allele for white flowers (p). A cross between a homozygous dominant plant (PP) and a heterozygous plant (Pp) would produce . (Punnett square) ~ a. all purple flowers P _ b. all white flowers P c, 50% purple and 50% white . d. 75% purple and 25% white P fair—m " if short hair (L) is dominant to long hair (i), animals with the alleles (LL) and (Li) have the same a. parents (3. phenotypes b. genotypes d. alleles An individual with the genotype Aa Bb Co is able to produce how many different kinds of gametes? (assume these genes are on different chromosomes; take your time on this and count all the possible combinations). A 51', a. 2 c. 6 . _ 114 d. 8 #9493251: ABC i“, be {19%; {:00 C DeloC Name: VJ C ls: 13. 14. 15. 16. 17. Form: A C 8. A single gene that effects multiple traits is called a. a super gene c. a pleiotropic gene b. an autosome d. an incompletely dominant gene A child has type 0 blood (ii), while the father has type A and the mother has type B. What is the genotype of the father and mother at the ABO locus? (Punnett square) 3. Father (lAIA): Mother (lElB) {ti 4 b. Father (lAi): Mother (IBIB) I it c. Father (lAtA): Mother (lBi) ‘ d. Father (lAi): Mother (lBi) ‘ The reason for the darker fur on the tail. ears, nose. and legs of a Siamese cat is ___. a. incomplete dominance b. variation in temperature, with cooler temperatures producing dark fur c. epistasis d. the cat rolling around in the mud Genes are _. located on chromosomes bi arranged in a Einear sequence on chromosomes 0. a specific sequence of DNA that codes for a trait d. all of the above a. The location of a gene on a chromosome is its a. centromere c. autosome b. locus d: address With respect to chromosomes, the difference between normal human males and females is defined by which of the following? a. In females, one X is deleted LFemales possess one X and one Y or Males possess one X and one Y ~d=—-Females have three X's A human X-linked gene is found on the Y chromosome. 21. True b. False A recessive allele in the X chromosome causes color blindness. A non-colorblind woman (whose father is colorblind) marries a non-colorblind man. What is the chance that their son will be colorblind? (Punnett square) 3. 0% c. 50% b. 25% d. 100% Huntington’s disease is caused by an autosomal dominant allele (H).. if two parents are heterozygous for the disease (Hh), then their children have a chance of having the diesease. (Punnett square) H [A a, 50% k 3‘ l w . b. 75% '" ll F: {iii 1.. c. 25% do 0% The failure of chromosomes to separate during meiosis is cailed a. crossing over c. hitchiking b. recombination d. nondisjunction Name: it is. \519. $21 if 22. 23. p b 25. L1 26. 20. . By reverse transcription, Form: A Persons with Down's syndrome have three copies of chromosome a. 21 c. 5 b. 16 d. X A chromosome’s gene sequence that was ABCDEFG before damage and ABCFG after is an example of instead of two. a. inversion c. duplication b. deletion d. poiyploidy Symptoms of phenylketonuria may be minimized or suppressed by a diet low in __ a. serine c. phenylalanine b. glycine d. carbohydrates . Small circular molecules of “extra” DNA in bacteria are called _ a. plasmids c. centrioles b. chromolets d. transferins Restriction enzymes are used to . a. produce uniform lengths of DNA a. slow down or stop transcription b. copy DNA during PCR d. cut DNA at specific sites Using the steps listed below, indicate the correct order of steps in the polymerase chain reaction (PCR). i. Annealing ll. Denaturing Ill. Extension 21. l>> ll >> III c. it >> lll >>l b. lll>>i|>>l .dfi ||>>l>>|ll The “DNA fingerprints" of fraternai twins will be the identical. a. True b. False Researchers use to separate DNA fragments by size. a. polymerase chain reaction c. gel electrophoresis b. DNA probes d. rulers When the gene for rat somatotropin was injected into mouse eggs the answer is “d") a. nothing happened because these two animals are different species b. the mice grew up as dwarfs c. the gene integrated into the mouse chromosomes but was not expressed d. the mice grew up to larger than normal . (mid-exam break: . Three of the four enzymes below are used in genetic engineering. Select the exception. a. Ligase c. b. DNA unwindicase Restriction enzymes d. DNA polymerase is used as a template for assembling . 3. mRNA; cDNA 0. DNA; enzymes b. mRNA; tRNA d. DNA; proteins 30. 31. 32. 33. 34. 35. 36. 37. J13. are mutations c. What was the goal of the Human Genome Project? a. Determine the DNA sequence of the human sex chromosomes. b. Determine the DNA sequence of some human autosomes. (3. Determine the DNA sequence of all human genes d. Make Craig Venter rich. Farm: A in bacteria, _ chop up foreign DNA. a. DNA polymerases c. reverse transcriptases b. restriction enzymes d. DNA Knifeases The author of On the Origin of Species by Means of Natural Selection was _. a. Darwin 6. Cuvier b. Mendel d. Gregg Darwin and # both jointly proposed the theory of natural selection. a. Lamarck c. Wallace b. FitzRoy d. Gregg The study of the distribution of plants and animals around the world is a. diversity 0. geology b. biogeography d. paleontology The theory of natural selection states that a. the best adapted individuals survive and reproduce, contributing the most gages to the next generation 7‘ 2" random assortment of genes results in better characteristics in the following generations c. individuals that mutate in response to their environment wiil survive only the iargest and strongest will survive Evolution can be defined as (a: a change in the genetic makeup of an organism .Jyr—a change in the form of an organism in one generation c. a change in the genetic makeup of a population over time *6? an organism growing into another type of organism Which of the following conditions indicates that a population is flo_t in Hardy-Weinberg equilibrium? a. large population size' b. no mutation c. differential survival & reproduction ct. no gene flow \/ Changes in the gene pool of a small population. which are caused by chance events, are termed gene flow b. genetic drift as» natural selection Name: Form: A i 38. Consider the foliowing data from afield study. Four schools (populations) of fish are. sub'ected to an oil sill. After 30 da 3 the tollowin results are observed. [El-IE- _ Which of these schools has the greatest fitness? Relax, take your time, and work your way through this one. ,ar school A c. school C b. school B d. school D 39. The tail feathers of 3 peacock are an example of what process? a. gene flow 0. symbiosis b. founder effect d. sexual selection J3 40. Directional selection occurs when . a. humans determine which organisms will survive b. individuais representing one extreme of the population have a better chance to survive than those on the other extreme c. individuals representing both extremes of the population have a lesser chance of surviving d. individuals representing both extremes of the population have a greater I chance of surviving L4 41. A gene pool is best described as _. a. all alleles that occur in a population for all the genes 43“ all alleles that occur in an individual c. all alleles in the population that survive natural selection 5dr- all alleles for swimming capability in a population 42. In the bioiogioal species concept of Ernst Mayr, what aspect of a population is critical to determining a species? a.- physical appearance b»: similar behavior patterns c. interbreeding capabilities C it.“ ability to get along 43. What are the two main components needed for speciation to occur? - a. Migration and large population size "4;.— Reproduction and gene flow c. Isolation and genetic divergence For, Dogs and cats Name: ,4—4 32 Q9 Form: A 44. Which of the following is not a premating isolation mechanism that helps maintain genetic identity of a species? a. Behavior isolation 0. Geographic isolation b. Temporal isolation d. Hybrid sterility Donkeys and horses (different species) interbreed and produce ofispring called mules that live normal lifespans, but are sterile. What type of reproductive barrier is this? a. Behavioral isolation c. Gametic incompatibility b. Hybrid infertility d. Mechanical incompatability 46. The St. Bernard and the miniature Doberman are both domestic dogs (the same species), but mating between them is limited by . 45. A.” behavioral isolation c. hybrid inviability 4? hybrid infertility d. mechanical incompatibility 47. Allopatric speciation requires a. gene flow c. polyploidy b. geographic isolation d. the presence of Alice plants 48. Which is not necessary for sympatric speciation} a. organisms living together in the same location b. "same homeland“ c. geographical barriers d. existing interbreeding populations 49. Sympatric speciation through polyploidy has been a frequent phenomenon in the evolution of is insects c. bacteria b. mammals d. plants 50. Parapatric speciation would be expected to occur most often near a common border between two populations. a. True b. False ...
View Full Document

Page1 / 6

1001 fall04 exam3 - Name: Class: Date: Form: A November 9,...

This preview shows document pages 1 - 6. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online