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Newest Genetics Questions

1. Over many generations, there is a good chance that an advantageous gene will be shared by every organism of the same species or
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2. Two chromosomes that each have genes for the same characters are Blank.target 1 of 4Alternative versions of a gene that produce
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3. What is a nondisjunction?View Available Hint(s)for Part A An error in cell division that causes homologous chromosomes or sister
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4. In birds, sex is determined by ZW chromosome inheritance. Males are ZZ and females are ZW. Within pigeon populations there is a
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5. In birds, sex is determined by ZW chromosome inheritance. Males are ZZ and females are ZW. Within pigeon populations there is a
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6. Abnormal chromosomes are frequently found in malignant tumors. Errors such as translocations may place a gene in close proximity
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7. Which of these descriptions of the behavior of chromosomes during meiosis explains Mendel’s law of independent assortment?The
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8. Select the correct statement(s) about sex determination in animals.Select all that apply. In all animals, males are XY and
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9. Imagine a human disorder that is inherited as a dominant, X-linked trait. How would the frequency of this disorder vary between
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10. Two sister chromatids are joined at the centromere prior to meiosis. Which statement is correct?These chromatids make up a
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11. This chromosome has two chromatids, joined at the centromere. What process led to the formation of the two chromatids?The two
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12. Assume that an organism exists in which crossing over does not occur, but that all other processes associated with meiosis occur
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13. True or False: For crossing over to occur, homologous chromosomes must align precisely early in prophase I so that nonsister
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14. True or False: Crossing over occurs at the ends of chromosomes, rather than near the centromeres.
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15. As a result of crossing over, sister chromatids are no longer identical to each other. Blanktarget 1 of 4Crossing over occurs at
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16. Which processes lead to most genetic variation in sexually reproducing organisms?Select all that apply. random fertilization
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17. Look at the Punnett square, which shows the predicted offspring of the F2 generation from a cross between a plant with
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18. A pair of homologous chromosomes. The first chromosome contains an allele for purple flowers; the other chromosome contains an
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19. Which of the following relationships among alleles of a single gene best explains the observation that a single change in the
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20. Gene S controls the sharpness of spines in a type of cactus. Cacti with the dominant allele, S, have sharp spines, whereas
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21. What is transcription?(1 point)Responses The process of breaking down RNA into nucleotides The process of breaking down RNA into
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22. Many people believe that a mutation will always result in the formation of a deadly tumor, or the development of a major body
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23. What is the mRNA complementary strand for the following DNA strand:ACC GTT AAT (1 point) Responses CAA UGG CCG CAA UGG CCG TGG
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24. Which best describes a recessive allele?always inherited from a parent when a dominant allele is inherited from the other parent
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25. Which structure carries instructions for producing the proteins that help make a person’s hair curly?phosphate deoxyribose
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26. In a population of lizards, some have tails that are all red (RR), and some have tails that are all blue (BB). The offspring of
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27. This Punnett square shows the crossing of two heterozygous plants with red flowers. R = dominant red, r = recessive whiteThe
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28. In a certain plant, the gene for tall height (T) is dominant over the gene for short height (t). The Punnett square shows the
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29. According to the chart below, what codon represents the amino acid Histidine (His)?(1 point) Responses GGA GGA AAU AAU CAU CAU
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30. What is happening in translation?(1 point)Responses Lipids in cells are synthesized Lipids in cells are synthesized Information
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31. A population of plants changes over time. Which of the following is accurate?(1 point)Responses The offspring receive genes from
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32. Assume that a Gallele stands for the green pod color, a g allele − yellow pod color, an I allele − inflated pod shape, and
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33. Which modification affects an organism’s expressed characteristics while leaving its DNA sequence unchanged?(1 point)Responses
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34. Which type of mutation causes cystic fibrosis?(1 point)Responses silent silent deletion deletion insertion insertion
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35. During which part of meiosis (meiosis I or meiosis II) do the two alleles of a gene separate? During which phase does the
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36. The different variants of a trait available to a gene are called(1 point) Responses polygenic traits. polygenic traits.
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37. In a population of weasels, black (B) and white (W) are co-dominant traits. The heterozygous genotype produces black and white
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38. 4/6WHAT DOES MEIOSIS CREATE? GAMETES DNA CHROMOSOMES TRAITS
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39. 3/6HOW MANY CHROMOSOMES DO HUMAN GAMETES HAVE? 47 23 22 46
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40. Question Examine the two strands of DNA below. Which kind of mutation occurred? Original strand: AGC GTA CCC TAC New strand: AGC
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41. Which factor could increase the possibility of mutations in your offspring?(1 point) Responses nothing because mutations are
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42. Epigenetic changes are generally(1 point) Responses heritable "on/off switches" for gene sequences due to environmental factors.
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43. Genes contain specific instructions for how to make(1 point) Responses proteins. proteins. nucleotides. nucleotides. carbon.
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44. Which statement about chromosomes is true?(1 point) Responses The same number of chromosomes appears in haploid and body cells.
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45. which of the following best defines gene expression?a the duplication of the entire genome during cell division b the process by
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46. In a population of weasels, black (B) and white (W) are co-dominant traits. The heterozygous genotype produces black and white
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47. A DNA segment has base order CCC ATA GCT. Which copy exhibits a deletion in the first codon triplet and then a substitution
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48. Which modification affect an organism's expressed characteristics while leaving its DNA sequence unchanged?a. substitution
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49. Which type of mutation causes cystic fibrosis?a. insertion b. silent c. deletion d. substitution
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50. A DNA segment has base order CCC ATA GCT. Which copy exhibits a deletion in the first codon triplet and then a substitution
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51. A DNA segment has base order CCC ATA GCT. Which copy exhibits a deletion in the first codon triplet and then a substitution
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    2. asked by Rai
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52. will you find different base pairs in humans and other animals
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53. Which example best describes the influence of genetic factors?(1 point)Responses A shrub with good access to sunlight is taller
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54. In snapdragons, flower color is determined by a gene that follows an incomplete dominance pattern. In this species, the red
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55. A scientist is tracking the evolution of a gene in giant African snails that determines the direction of the spiral in shells.
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56. Which viral trait is controversial?(1 point)Responses .. they possess a genetic code they possess a genetic code - no response
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57. Which statement describes DNA?Chromosomes are wrapped around proteins and condensed into DNA. DNA stores an organism’s genetic
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58. The flow of genetic information in cells follows a process called the !This process explains how a gene in DNA is used to
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59. MutationDescription deletion Part of the chromosome is lost, Extra copies of part of a chromosome are made. Part of a chromosome
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60. Which of the following best defines gene expression? (1 point)• The permanent alteration of the DNA sequence within a gene •
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61. How many chromosomes do humans typically have in each somatic cell? (1 point)23 • 44 • 46 • 22
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62. What is a gene?(1 point) Responses a structure that contains many chromosomes a structure that contains many chromosomes a
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63. Three-letter segments of mRNA code for specific(1 point)Responses disorders. disorders. javascript:void(0) amino acids. amino
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64. Identify the answer choice that correctly states the type of cells that are passed onto offspring and the process that is used
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65. Genetic mutations result from a variety of factors, including DNA replication errors and environmental damage to DNA that is not
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66. Genetic variation is a strong driver of evolution in species. Organisms that use sexual reproduction have evolved a cell
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67. The genetic blueprint that produces the traits of an organism is provided by which macromolecule of the cell?(1 point) Responses
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68. 7. Starting with DNA and ending with proteins, list and describe the process of gene expression. in one short sentence
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69. The law of independent assortment states that a one gene affects the segregation of another gene during gamma formation be one
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70. Using both codon charts, decode the mRNA sequence below:mRNA: AUG-GUU-AAA-CGA-CAA-UCC Amino Acid Chain:
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    2. asked by .
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71. Like enzymes, list what can affect gene expression:
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72. Mutations in these cells will not affect the next generation: Somatic or Gametic
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73. Mutations in these cells affect the next generation: Somatic or Gametic
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74. Define the types of mutations and give an example of each.Substitution - Insertion - Deletion - Silent - Missense -
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75. What is the difference between RNA and DNA? What is the function of RNA?Define the types of RNA and what their function is
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76. A DNA segment has base order AGC TTA TCG. Which copy exhibits a frameshift mutation through deletion?(1 point) Responses AGC TTA
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77. During meiosis, non-sister chromatids may exchange sections of DNA leading to genetic diversity. What is this process called?(1
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78. The inheritance pattern of one gene will not affect the inheritance pattern of another gene. This is known as(1 point) Responses
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79. If a homozygous white horse CWCW and a homozygous black horse CBCB are bred together, what is the likelihood that their
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80. Consider that a plant with genotype RR has red flowers and a plant with genotype WW has white flowers. This plant species
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81. Due to Mendel's law of segregationResponses A homologous chromosomes pair up and cross over during prophase 1 of
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82. Chromosomes are made of tightly packed ________ molecules.Responses A DNADNA B amino acidamino acid C lipidlipid Question 2 A
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83. In a field of sunflower plants, 776 plants are tall and 224 plants are short. Sunflower height follows the normal pattern of
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84. Part B:If a red snapdragon is crossed with a white snapdragon what is the probability of producing pink flowered snapdragon? (1
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85. Identify the parents genotype(2 points) 0 / 10000 Word Limit Question 2 This is a completed dihybrid cross from the above
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86. What is heredity?(1 point)Responses the passing of genetic information from parents to their offspring the passing of genetic
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87. Genetic Variation from Meiosis Quick Check3 of 53 of 5 Items Question Which of the following is a difference between phase I and
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88. What is the difference between gene expression and gene regulation?(1 point)Responses Gene expression is all the possible
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89. What is one difference between the gene regulation in prokaryotes and eukaryotes?(1 point)Responses All eukaryotes use person to
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90. Prokaryotes regulate and control their gene expression in clusters called:(1 point)Responses RNA polymerase RNA polymerase
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91. An advantage ofreproduction is that a genetic disorder in a parent might not affect the offspring.
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    2. asked by danniy
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92. A scientist is studying two types of worms. Worm X has DNA identical to its parent. Worm Y has a combination of DNA from two
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93. Koalas reproduce sexually. Which statement describes how a young koala’s DNA compares to the DNA of its parents?It has the
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    2. asked by danniy
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94. A species of fox lives in the aritic where the ground is covered in white snow most of the year. These arctic foxes hunt rodents
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    2. asked by X_ N01D_X
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95. Which statement is true?Netural mutations occur when a mutation is found in a DNA region that codes for proteins Neutral
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    2. asked by X_ N01D_X
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96. Which statement is accurate about dominant alleles?They are expressed whenever present They result in the trait of shortness in
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    2. asked by X_ N01D_X
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97. Which of the following best defines gene expression?(1 point)Responses The permanent alteration of the DNA sequence within a
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98. What is one way that a frameshift mutation could occur? (1 point) Responses three nucleotides are deleted three nucleotides are
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99. Which factor could increase the possibility of mutation s in your offspring?(1 point) Responses nothing because mutations are
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100. Epigenetic changes are generally(1 point) Responses not heritable genetic changes that are specific to an individual. not
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