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Download Biology Test #3 – Chapter 5 – Genetics Multiple Choice: 1. An
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Biology Test #3 – Chapter 5 – Genetics Multiple Choice: 1. An example of a species characteristic in humans would be: a. blue eyes c. freckles b. blond hair d. thumbs 2. Hair and eye color, body build, and facial features are inherited, and are called: a. human characteristics c. individual characteristics b. racial characteristics d. species characteristics 3. Sections of a chromosome that code for a trait are called: a. chromatids c. traits b. genes d. centromeres 4. Asexual reproduction takes place in all of the following except: a. budding c. fragmentation b. euploidy d. spores 5. A field of seedless grapes would be: a. a natural clone c. b. an artificial clone d. a human clone none of the above 6. Human brothers and sisters are an example of: a. a natural clone c. a human clone b. an artificial clone d. none of the above 7. An organism that can reproduce only asexually must be: a. unicellular c. diploid b. haploid d. able to form a clone 8. Which of these is a difference between mitosis and meiosis? a. The number of consecutive cell divisions b. the presence of spindles c. the attachment between DNA duplicates d. the coiling of the chromosome 9. When two haploid gametes unite, they forma diploid cell called a/an: a. ovum c. sperm b. isogamete d. zygote 10. Gametogenesis is a. the body of a seed b. the carrying of sperm or eggs c. d. formation of ova or sperm a theory of the beginning of games 11. The Austrian monk who established the first laws and principles of heredity was: a. Mendel c. Morgan b. Punnett d. George 12. The separation of genes on homologous chromosomes during the formation of gametes demonstrates the concept of: a. dominance c. segregation b. recessiveness d. unit characteristics 13. The principle of genetics involved when one gene in a pair masks or prevents the expression of the other is called the principle of: a. dominance and recessiveness c. independent assortment b. segregation d. unit characteristics 14. In guinea pigs, black hair is dominant over white hair. If a homozygous black guinea pig was crossed with a homozygous white guinea pig, the F1 offspring probability would be: a. all white c. ½ black and ½ white b. all black d. unable to be predicted 15. The phenotypic ratio of the offspring TT, Tt, tt, TT is: a. 2:1:1 c. 2:2 b. 2:1:2 d. 3:1 16. The ability of a person to roll his tongue is due to a dominant allele T. A woman who can roll her tongue is married to a man who cannot. Two of their four children have the ability to roll their tongues, and two do not. What are the parent’s genotypes? a. mother TT, father tt c. mother Tt, father tt b. mother tt, father Tt d. mother Tt, father Tt 17. In humans, free ear lobes are determined by a dominant gene, F, and ear lobes that are attached are determined by a recessive gene, f. A woman with free ear lobes marries a man with attached ear lobes. Their first child has attached ear lobes. Which of the following expresses the mother’s genotype? a. Ff c. ff b. FF d. xfxf 18. Possessing a pair of identical alleles for one trait is the: a. monohybrid condition c. homozygous condition b. dihybrid condition d. heterozygous condition 19. If an organism has two different genes for a single trait, the organism is: a. homozygous c. monohybrid b. heterozygous d. dihybrid 20. A chart showing the phenotype of the individuals in several different generations of a family is a: a. karyotype c. Punnett square b. pedigree d. clone 21. A condition in which both alleles of a heterozygous condition are expressed is: a. crossing over c. transformation b. incomplete dominance d. sex-linked 22. When dealing with two sets of traits, you would be dealing with a a. diploid condition c. dihybrid cross b. monohybrid cross d. haploid condition 23. The possible number of different gametes that can form from a cell with genotype CcDd is: a. 2 c. 6 b. 4 d. 8 24. The condition in which a locus on a chromosome can have one of several different genes is: a. multiple alleles c. local alleles b. simple alleles d. recessive alleles 25. Autosomes are chromosomes that: a. are not sex chromosomes b. are haploid c. d. bear a lethal gene have been altered by mutation 26. A trait carried only on the X-chromosome is: a. sex-limited c. sex-influenced b. sex-linked d. sex-determined 27. In the case of the sex-linked trait red-green colorblindness, which of the following could not possible have occurred? a. a carrier mother passed the gene on to her son b. a carrier mother passed the gene on to her daughter c. A colorblind father passed the gene on to his son d. A colorblind father passed the gene on to his daughter 28. The blood type that is always evidence of a homozygous condition is: a. A c. AB b. B d. O Matching: Choose from the following list the process that is being described by Each statement below. These are processes in animal cells. Each question only has one answer. A. B. C. 29. 30. 31. 32. 33. 34. 35. 36. 37. 38. 39. 40. 41. 42. 43. 44. 45. anaphase in mitosis interphase in mitosis metaphase in mitosis D. E. F. prophase in mitosis telophase in mitosis none of these The centrioles divide and migrate The nuclear membrane disappears The cell membrane disappears The chromosomes begin to coil in the nucleus Centromeres pull apart sister chromatids The spindle disappears Daughter cells grow to divide again DNA forms messenger RNA Sister chromatids are at the center of the spindle Nucleoli appear The cytoplasm divides Sperm are formed The chromatin material disappears Budding occurs An unequal division of cytoplasm results Four equal cells are formed fertilization occurs 46. Perform a trihybrid cross of a female heterozygous for phone talking, video game playing, and face-booking, married to a male heterozygous for the same. What would be the possible genotypes and phenotypes of the offspring (show each as a ratio). (This question poses that these “traits” are genetically based; there is no evidence of this.)