Ask a New Genetics Question

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
   1. 1 answer
   2. 47 views
2. Two chromosomes that each have genes for the same characters are Blank.target 1 of 4Alternative versions of a gene that produce
   1. 1 answer
   2. 29 views
3. What is a nondisjunction?View Available Hint(s)for Part A An error in cell division that causes homologous chromosomes or sister
   1. 1 answer
   2. 35 views
4. In birds, sex is determined by ZW chromosome inheritance. Males are ZZ and females are ZW. Within pigeon populations there is a
   1. 1 answer
   2. 30 views
5. In birds, sex is determined by ZW chromosome inheritance. Males are ZZ and females are ZW. Within pigeon populations there is a
   1. 1 answer
   2. 31 views
6. Abnormal chromosomes are frequently found in malignant tumors. Errors such as translocations may place a gene in close proximity
   1. 1 answer
   2. 40 views
7. Which of these descriptions of the behavior of chromosomes during meiosis explains Mendel’s law of independent assortment?The
   1. 1 answer
   2. 29 views
8. Select the correct statement(s) about sex determination in animals.Select all that apply. In all animals, males are XY and
   1. 1 answer
   2. 28 views
9. Imagine a human disorder that is inherited as a dominant, X-linked trait. How would the frequency of this disorder vary between
   1. 1 answer
   2. 31 views
10. Two sister chromatids are joined at the centromere prior to meiosis. Which statement is correct?These chromatids make up a
    1. 1 answer
    2. 96 views
11. This chromosome has two chromatids, joined at the centromere. What process led to the formation of the two chromatids?The two
    1. 1 answer
    2. 90 views
12. Assume that an organism exists in which crossing over does not occur, but that all other processes associated with meiosis occur
    1. 1 answer
    2. 41 views
13. True or False: For crossing over to occur, homologous chromosomes must align precisely early in prophase I so that nonsister
    1. 1 answer
    2. 91 views
14. True or False: Crossing over occurs at the ends of chromosomes, rather than near the centromeres.
    1. 1 answer
    2. 26 views
15. As a result of crossing over, sister chromatids are no longer identical to each other. Blanktarget 1 of 4Crossing over occurs at
    1. 1 answer
    2. 31 views
16. Which processes lead to most genetic variation in sexually reproducing organisms?Select all that apply. random fertilization
    1. 1 answer
    2. 42 views
17. Look at the Punnett square, which shows the predicted offspring of the F2 generation from a cross between a plant with
    1. 1 answer
    2. 28 views
18. A pair of homologous chromosomes. The first chromosome contains an allele for purple flowers; the other chromosome contains an
    1. 1 answer
    2. 96 views
19. Which of the following relationships among alleles of a single gene best explains the observation that a single change in the
    1. 1 answer
    2. 28 views
20. Gene S controls the sharpness of spines in a type of cactus. Cacti with the dominant allele, S, have sharp spines, whereas
    1. 1 answer
    2. 29 views
21. What is transcription?(1 point)Responses The process of breaking down RNA into nucleotides The process of breaking down RNA into
    1. 1 answer
    2. 32 views
22. Many people believe that a mutation will always result in the formation of a deadly tumor, or the development of a major body
    1. 1 answer
    2. asked by .
    3. 28 views
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
    1. 1 answer
    2. 23 views
24. Which best describes a recessive allele?always inherited from a parent when a dominant allele is inherited from the other parent
    1. 1 answer
    2. 28 views
25. Which structure carries instructions for producing the proteins that help make a person’s hair curly?phosphate deoxyribose
    1. 3 answers
    2. 30 views
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
    1. 1 answer
    2. 27 views
27. This Punnett square shows the crossing of two heterozygous plants with red flowers. R = dominant red, r = recessive whiteThe
    1. 1 answer
    2. 15 views
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
    1. 1 answer
    2. 11 views
29. According to the chart below, what codon represents the amino acid Histidine (His)?(1 point) Responses GGA GGA AAU AAU CAU CAU
    1. 3 answers
    2. 9 views
30. What is happening in translation?(1 point)Responses Lipids in cells are synthesized Lipids in cells are synthesized Information
    1. 7 answers
    2. 19 views
31. A population of plants changes over time. Which of the following is accurate?(1 point)Responses The offspring receive genes from
    1. 1 answer
    2. 12 views
32. Assume that a Gallele stands for the green pod color, a g allele − yellow pod color, an I allele − inflated pod shape, and
    1. 1 answer
    2. 20 views
33. Which modification affects an organism’s expressed characteristics while leaving its DNA sequence unchanged?(1 point)Responses
    1. 1 answer
    2. 14 views
34. Which type of mutation causes cystic fibrosis?(1 point)Responses silent silent deletion deletion insertion insertion
    1. 1 answer
    2. 15 views
35. During which part of meiosis (meiosis I or meiosis II) do the two alleles of a gene separate? During which phase does the
    1. 1 answer
    2. 16 views
36. The different variants of a trait available to a gene are called(1 point) Responses polygenic traits. polygenic traits.
    1. 1 answer
    2. 12 views
37. In a population of weasels, black (B) and white (W) are co-dominant traits. The heterozygous genotype produces black and white
    1. 1 answer
    2. 10 views
38. 4/6WHAT DOES MEIOSIS CREATE? GAMETES DNA CHROMOSOMES TRAITS
    1. 1 answer
    2. 6 views
39. 3/6HOW MANY CHROMOSOMES DO HUMAN GAMETES HAVE? 47 23 22 46
    1. 1 answer
    2. 6 views
40. Question Examine the two strands of DNA below. Which kind of mutation occurred? Original strand: AGC GTA CCC TAC New strand: AGC
    1. 1 answer
    2. 8 views
41. Which factor could increase the possibility of mutations in your offspring?(1 point) Responses nothing because mutations are
    1. 1 answer
    2. 10 views
42. Epigenetic changes are generally(1 point) Responses heritable "on/off switches" for gene sequences due to environmental factors.
    1. 1 answer
    2. 8 views
43. Genes contain specific instructions for how to make(1 point) Responses proteins. proteins. nucleotides. nucleotides. carbon.
    1. 1 answer
    2. 6 views
44. Which statement about chromosomes is true?(1 point) Responses The same number of chromosomes appears in haploid and body cells.
    1. 1 answer
    2. 8 views
45. which of the following best defines gene expression?a the duplication of the entire genome during cell division b the process by
    1. 1 answer
    2. 10 views
46. In a population of weasels, black (B) and white (W) are co-dominant traits. The heterozygous genotype produces black and white
    1. 1 answer
    2. 13 views
47. A DNA segment has base order CCC ATA GCT. Which copy exhibits a deletion in the first codon triplet and then a substitution
    1. 1 answer
    2. 8 views
48. Which modification affect an organism's expressed characteristics while leaving its DNA sequence unchanged?a. substitution
    1. 1 answer
    2. 11 views
49. Which type of mutation causes cystic fibrosis?a. insertion b. silent c. deletion d. substitution
    1. 1 answer
    2. 9 views
50. A DNA segment has base order CCC ATA GCT. Which copy exhibits a deletion in the first codon triplet and then a substitution
    1. 1 answer
    2. 10 views
51. A DNA segment has base order CCC ATA GCT. Which copy exhibits a deletion in the first codon triplet and then a substitution
    1. 1 answer
    2. asked by Rai
    3. 13 views
52. will you find different base pairs in humans and other animals
    1. 5 answers
    2. 15 views
53. Which example best describes the influence of genetic factors?(1 point)Responses A shrub with good access to sunlight is taller
    1. 1 answer
    2. 15 views
54. In snapdragons, flower color is determined by a gene that follows an incomplete dominance pattern. In this species, the red
    1. 1 answer
    2. asked by 0000
    3. 19 views
55. A scientist is tracking the evolution of a gene in giant African snails that determines the direction of the spiral in shells.
    1. 1 answer
    2. asked by 0000
    3. 19 views
56. Which viral trait is controversial?(1 point)Responses .. they possess a genetic code they possess a genetic code - no response
    1. 1 answer
    2. asked by 0000
    3. 11 views
57. Which statement describes DNA?Chromosomes are wrapped around proteins and condensed into DNA. DNA stores an organism’s genetic
    1. 1 answer
    2. asked by danniy
    3. 16 views
58. The flow of genetic information in cells follows a process called the !This process explains how a gene in DNA is used to
    1. 1 answer
    2. 15 views
59. MutationDescription deletion Part of the chromosome is lost, Extra copies of part of a chromosome are made. Part of a chromosome
    1. 1 answer
    2. 14 views
60. Which of the following best defines gene expression? (1 point)• The permanent alteration of the DNA sequence within a gene •
    1. 1 answer
    2. 15 views
61. How many chromosomes do humans typically have in each somatic cell? (1 point)23 • 44 • 46 • 22
    1. 1 answer
    2. 7 views
62. What is a gene?(1 point) Responses a structure that contains many chromosomes a structure that contains many chromosomes a
    1. 1 answer
    2. 12 views
63. Three-letter segments of mRNA code for specific(1 point)Responses disorders. disorders. javascript:void(0) amino acids. amino
    1. 1 answer
    2. 18 views
64. Identify the answer choice that correctly states the type of cells that are passed onto offspring and the process that is used
    1. 47 answers
    2. 30 views
65. Genetic mutations result from a variety of factors, including DNA replication errors and environmental damage to DNA that is not
    1. 1 answer
    2. 14 views
66. Genetic variation is a strong driver of evolution in species. Organisms that use sexual reproduction have evolved a cell
    1. 1 answer
    2. 16 views
67. The genetic blueprint that produces the traits of an organism is provided by which macromolecule of the cell?(1 point) Responses
    1. 1 answer
    2. 10 views
68. 7. Starting with DNA and ending with proteins, list and describe the process of gene expression. in one short sentence
    1. 1 answer
    2. 12 views
69. The law of independent assortment states that a one gene affects the segregation of another gene during gamma formation be one
    1. 1 answer
    2. 18 views
70. Using both codon charts, decode the mRNA sequence below:mRNA: AUG-GUU-AAA-CGA-CAA-UCC Amino Acid Chain:
    1. 1 answer
    2. asked by .
    3. 14 views
71. Like enzymes, list what can affect gene expression:
    1. 1 answer
    2. asked by .
    3. 11 views
72. Mutations in these cells will not affect the next generation: Somatic or Gametic
    1. 1 answer
    2. asked by .
    3. 10 views
73. Mutations in these cells affect the next generation: Somatic or Gametic
    1. 1 answer
    2. asked by .
    3. 9 views
74. Define the types of mutations and give an example of each.Substitution - Insertion - Deletion - Silent - Missense -
    1. 1 answer
    2. asked by .
    3. 14 views
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
    1. 1 answer
    2. asked by .
    3. 13 views
76. A DNA segment has base order AGC TTA TCG. Which copy exhibits a frameshift mutation through deletion?(1 point) Responses AGC TTA
    1. 1 answer
    2. 15 views
77. During meiosis, non-sister chromatids may exchange sections of DNA leading to genetic diversity. What is this process called?(1
    1. 1 answer
    2. 13 views
78. The inheritance pattern of one gene will not affect the inheritance pattern of another gene. This is known as(1 point) Responses
    1. 1 answer
    2. 13 views
79. If a homozygous white horse CWCW and a homozygous black horse CBCB are bred together, what is the likelihood that their
    1. 1 answer
    2. 11 views
80. Consider that a plant with genotype RR has red flowers and a plant with genotype WW has white flowers. This plant species
    1. 1 answer
    2. 9 views
81. Due to Mendel's law of segregationResponses A homologous chromosomes pair up and cross over during prophase 1 of
    1. 1 answer
    2. 18 views
82. Chromosomes are made of tightly packed ________ molecules.Responses A DNADNA B amino acidamino acid C lipidlipid Question 2 A
    1. 1 answer
    2. 15 views
83. In a field of sunflower plants, 776 plants are tall and 224 plants are short. Sunflower height follows the normal pattern of
    1. 1 answer
    2. 20 views
84. Part B:If a red snapdragon is crossed with a white snapdragon what is the probability of producing pink flowered snapdragon? (1
    1. 3 answers
    2. 14 views
85. Identify the parents genotype(2 points) 0 / 10000 Word Limit Question 2 This is a completed dihybrid cross from the above
    1. 3 answers
    2. 10 views
86. What is heredity?(1 point)Responses the passing of genetic information from parents to their offspring the passing of genetic
    1. 1 answer
    2. 14 views
87. Genetic Variation from Meiosis Quick Check3 of 53 of 5 Items Question Which of the following is a difference between phase I and
    1. 1 answer
    2. 11 views
88. What is the difference between gene expression and gene regulation?(1 point)Responses Gene expression is all the possible
    1. 1 answer
    2. 15 views
89. What is one difference between the gene regulation in prokaryotes and eukaryotes?(1 point)Responses All eukaryotes use person to
    1. 1 answer
    2. 10 views
90. Prokaryotes regulate and control their gene expression in clusters called:(1 point)Responses RNA polymerase RNA polymerase
    1. 1 answer
    2. 12 views
91. An advantage ofreproduction is that a genetic disorder in a parent might not affect the offspring.
    1. 1 answer
    2. asked by danniy
    3. 12 views
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
    1. 1 answer
    2. asked by danniy
    3. 13 views
93. Koalas reproduce sexually. Which statement describes how a young koala’s DNA compares to the DNA of its parents?It has the
    1. 1 answer
    2. asked by danniy
    3. 11 views
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
    1. 1 answer
    2. asked by X_ N01D_X
    3. 10 views
95. Which statement is true?Netural mutations occur when a mutation is found in a DNA region that codes for proteins Neutral
    1. 1 answer
    2. asked by X_ N01D_X
    3. 14 views
96. Which statement is accurate about dominant alleles?They are expressed whenever present They result in the trait of shortness in
    1. 1 answer
    2. asked by X_ N01D_X
    3. 14 views
97. Which of the following best defines gene expression?(1 point)Responses The permanent alteration of the DNA sequence within a
    1. 11 answers
    2. 14 views
98. What is one way that a frameshift mutation could occur? (1 point) Responses three nucleotides are deleted three nucleotides are
    1. 1 answer
    2. 14 views
99. Which factor could increase the possibility of mutation s in your offspring?(1 point) Responses nothing because mutations are
    1. 1 answer
    2. 5 views
100. Epigenetic changes are generally(1 point) Responses not heritable genetic changes that are specific to an individual. not
     1. 1 answer
     2. 11 views