Exam Review:
Exam III (chap 15-17,23-25)
Supplemental Instruction
Iowa State University
Leader: Adam
Course: Biology 211
Instructor: Dr. Holscher
Date:
1. The sexual life cycle alternates between fertilization and what?
a. Mitosis
b. Meiosis
c. Zygote
d. Somatic cell
2. How many possible daughter cell combinations are there for an organism with a diploid
number of 8?
a. 4
b. 12
c. 16
3. Two alleles that both affect the phenotype in separate distinguishable ways is known as?
a. Complete dominance
b. Codominance
c. Incomplete dominance
d. Partial dominance
4. Incorporation of genetic material from another organism without being the offspring of
that organism is referred to as what?
a. Vertical evolution
b. Horizontal evolution
c. Diagonal evolution
d. Genomic evolution
5. This occurs when a few individuals become isolated from a larger population,
establishing a new population whose gene pool differs from the original population?
a. Bottleneck effect
b. Founder effect
c. Adam effect
d. Translocation
6. When are homologues separated?
a. Meiosis I
b. Meiosis II
c. Meiosis III
d. Meiosis IV
7. Which phase is not part of Interphase?
a. G0 leaves the cell cycle
b. S
c. G1
d. G2
8. What term refers to all chromosomes other than the sex chromosomes?
a. Gametes
b. Body Cell
c. Barr Body
d. Autosome
9. Which type of spindle microtubule controls movement of the chromosome?
a. Astral
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b. Polar
c. Kinetochore
d. Anchoring
10. Genes for each character exist in two variant forms, called ________.
a. Alleles
b. Chromosomes
c. Spots
d. Genotype
11. Which describes Maternal effect?
a. The phenotype of the mother determines the genotype of the offspring.
b. The genotype of the mother determines the phenotype of all the offspring.
c. The genotype of the mother produces offspring of the same genotype as the
father.
d. The genotype of the sons is only dependent on the mother’s phenotype.
12. Who hypothesized that species evolve through use and disuse and through the inheritance
of acquired traits.
a. Charles Darwin
b. Carolus Linnaeus
c. Jean-Baptiste de Lamark
d. Alfred Wallace
13. When are sister chromatids separated?
a. Meiosis I
b. Meiosis II
c. Meiosis III
d. Meiosis IV
14. How many pairs of autosomes are in a human muscle cell?
a. 23
b. 22
c. 44
d. 46
15. What stage is missing during meiosis II?
a. Metaphase
b. Prophase
c. Interphase
d. Telophase
16. A Barr body will be found in the nucleus of _______.
a. Male gamete
b. Female gamete
c. Male somatic cell
d. Female somatic cell
17. Genetic drift as a major impact on ________.
a. Small populations
b. Large population
18. A testcross can determine the _________ of an organism that has a _________
phenotype.
a. Phenotype, recessive
b. Genotype, dominant
c. Phenotype, dominant
d. Genotype, recessive
19. What event produces recombinant chromosomes?
a. Formation of a tetrad
b. Independent assortment of chromosomes
c. Crossing Over
d. Random Fertilization
20. The normal character phenotype is referred to as what?
a. Dominant type
b. Recessive type
c. Wild type
d. Normal Type
21. Which checkpoint in the cell cycle checks the integrity of the spindle apparatus?
a. Prophase Checkpoint
b. Metaphase Checkpoint
c. Anaphase Checkpoint
d. G2 checkpoint
22. Fathers pass sex-linked alleles to all of their ________, but to none of their ________.
a. Sons, daughters
b. Daughters, sons
23. Which person(s) advocated Unifromitarianism?
a. John Ray
b. Carolus Linnaeus
c. Jean-Baptiste de Lamark
d. James Hutton/Charles Lyell
24. Prevents the interspecies hybrid zygote from developing into a viable, fertile offspring.
a. Prezygotic isolating mechanism
b. Postzygotic isolating mechanism
25. The apparatus of microtubules originate from what structure?
a. Centromere
b. Nucleus membrane
c. Centrosome
d. Polar astrals
26. Homologous chromosomes do not share which quality?
a. Same length
b. Same staining pattern
c. Same RNA double helix
d. Same centromere position
27. Meiosis results in the formation of how many daughter cells?
a. 2
b. 3
c. 4
d. 8
28. In animal cells cytokinesis involves the formation of what?
a. Cell plate
b. Cyclin dependent kinase
c. Cleavage furrow
d. Cyclin
29. What is the smallest unit that can evolve?
a. Individual
b. Population
c. Species
30. The Hardy-Weinberg equation is represented by:
a. q^3 +2pq + q^3=1
b. q^2 +pq^2 +q^2=1
c. q^2 +2pq+ q^2=1
31. Migration tends to ________ difference in allele frequency between population while
______ genetic diversity within population.
a. Decrease, increase
b. Increase, decrease
32. Anueploidy may result from __________ during either Meiosis I or II.
a. Crossing Over
b. Nondisjunction
c. Inversion
d. Translocation
33. Variation in the number of sets of chromosomes is called?
a. Anueploidy
b. Polyploidy
c. Nondisjunction
d. Translocation
34. All mouse cells are diploid
a. True
b. False
35. How many autosomes are in a human brain cell?
a. 22
b. 44
c. 46
d. 88
36. Which type of spindle microtubule play a role in the separation of the cell?
a. Astral
b. Polar
c. Kinetochore
d. Anchoring
37. A variation in the number of a particular chromosome within a set is called?
a. Anueploidy
b. Polyploidy
c. Nondisjunction
d. Translocation
38. In a particular animal species, a long tail (T) is dominant to a short tail (t), and a blonde
hair (B) is dominant to grey hair (b). When a TtBb female is mated with a ttbb male, the
observed distribution of offspring is as follows 411 offspring with a long tail and blonde
hair, 101 offspring with a long tail and grey hair, 312 offspring with a short tail and
blonde hair, and 386 offspring with a short tail and grey hair. Based on these offspring,
what is the approximate recombination frequency?
a. 24%
b. 34%
c. 64%
d. 84%
39. A hypothesis that had been tested and is well supported by data is known as?
a. Scientific theory
b. A fact
c. Idea
d. Postulate
40. Which type of spindle microtubule positions the centrosome in the cell?
a. Astral
b. Polar
c. Kinetochore
d. Anchoring
41. Which sex determines the gender of the offspring?
a. Male
b. Female
42. The phenotype of F1 hybrids is somewhere between the phenotype of the two parental
varieties is called?
a. Complete dominance
b. Codominance
c. Incomplete dominance
d. Partial dominance
43. All of the alleles for every gene in a given population is called a ______?
a. Species
b. Gene Pool
c. Locus
d. Hybrid Zone
44. What phase of the cell cycles do sister chromatids form?
a. G1
b. G2
c. S
d. Prophase
45. Which person viewed life as descent with modification?
a. Charles Darwin
b. Carolus Linnaeus
c. Georges Cuvier
d. Alfred Wallace
46. Which refers to when organelles such as chloroplasts are contributed by only the egg
______.
a. Extranuclear inheritance
b. Organelle inheritance
c. Maternal effect
d. Maternal inheritance
47. Dominant alleles are always more common in population that recessive alleles.
a. True
b. False
48. The alleles of one gene mask the expression of the alleles of another gene is known as?
a. Incomplete dominance
b. Epistasis
c. X inactivation
d. Translocation
49. Most animal species are?
a. Diploid dominant
b. Haploid dominant
c. Alternate between generation
d. Triploid dominant
50. In meiosis how many cell division are there?
a. 1
b. 2
c. 3
d. 4