2. The inability of the dominant allele to make up for the presence of the recessive allele is...
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Transcript of 2. The inability of the dominant allele to make up for the presence of the recessive allele is...
![Page 1: 2. The inability of the dominant allele to make up for the presence of the recessive allele is associated with _____. A. codominance B. epistasis C. incomplete.](https://reader034.fdocuments.net/reader034/viewer/2022051114/56649e055503460f94af1509/html5/thumbnails/1.jpg)
2. The inability of the dominant allele to make up for the presence of the recessive allele is associated with _____.
A. codominance B. epistasis C. incomplete dominance D. pleiotropy
___
![Page 2: 2. The inability of the dominant allele to make up for the presence of the recessive allele is associated with _____. A. codominance B. epistasis C. incomplete.](https://reader034.fdocuments.net/reader034/viewer/2022051114/56649e055503460f94af1509/html5/thumbnails/2.jpg)
4. If the allele for red petals is not completely dominant to the allele for white petals, when a true-breeding plant with red petalsis crossed with a true breeding plant with white petals, the offspring will ____.
A. all have red petals B. all have pink petals C. all have white petals D. all have red and white petals
___
![Page 3: 2. The inability of the dominant allele to make up for the presence of the recessive allele is associated with _____. A. codominance B. epistasis C. incomplete.](https://reader034.fdocuments.net/reader034/viewer/2022051114/56649e055503460f94af1509/html5/thumbnails/3.jpg)
5. When the plants with pink petals (R1R2) are allowed to self-pollinate, the phenotypic ratio of the offspring will be _____.
A. 3:1 B. 1:1:1:1 C. 1:2:1 D. 9:3:3:1
___
![Page 4: 2. The inability of the dominant allele to make up for the presence of the recessive allele is associated with _____. A. codominance B. epistasis C. incomplete.](https://reader034.fdocuments.net/reader034/viewer/2022051114/56649e055503460f94af1509/html5/thumbnails/4.jpg)
8. The appearance of both A and B types of glycoproteins on the red blood cells of the people with AB blood type is anexample of _______.
A. codominance B. polygenic inheritance C. epistasis D. incomplete dominance
___
![Page 5: 2. The inability of the dominant allele to make up for the presence of the recessive allele is associated with _____. A. codominance B. epistasis C. incomplete.](https://reader034.fdocuments.net/reader034/viewer/2022051114/56649e055503460f94af1509/html5/thumbnails/5.jpg)
9. In _____, genes at two different loci interact to control a single trait.
A. codominance B. pleiotropy C. polygenic inheritance D. epistasis ___
![Page 6: 2. The inability of the dominant allele to make up for the presence of the recessive allele is associated with _____. A. codominance B. epistasis C. incomplete.](https://reader034.fdocuments.net/reader034/viewer/2022051114/56649e055503460f94af1509/html5/thumbnails/6.jpg)
10. Albinism is the result of _____.
A. epistasis B. pleiotropy C. codominance D. incomplete dominance
___
![Page 7: 2. The inability of the dominant allele to make up for the presence of the recessive allele is associated with _____. A. codominance B. epistasis C. incomplete.](https://reader034.fdocuments.net/reader034/viewer/2022051114/56649e055503460f94af1509/html5/thumbnails/7.jpg)
11. If sweet peas are _____ in either gene for pigmentation, a lack of color results.
A. homozygous dominant B. heterozygous C. homozygous recessive ___
![Page 8: 2. The inability of the dominant allele to make up for the presence of the recessive allele is associated with _____. A. codominance B. epistasis C. incomplete.](https://reader034.fdocuments.net/reader034/viewer/2022051114/56649e055503460f94af1509/html5/thumbnails/8.jpg)
12. An absence of color occurs when _____.
A. a gene is absent B. an enzyme in a metabolic pathway is missing C. at least one dominant allele is present
___
![Page 9: 2. The inability of the dominant allele to make up for the presence of the recessive allele is associated with _____. A. codominance B. epistasis C. incomplete.](https://reader034.fdocuments.net/reader034/viewer/2022051114/56649e055503460f94af1509/html5/thumbnails/9.jpg)
13. Polygenic inheritance occurs when one trait is governed by many genes occupying different loci on ______.
A. the same homologous pair of chromosomes B. different homologous pairs of chromosomes
C. either A or B D. neither A or B
___
![Page 10: 2. The inability of the dominant allele to make up for the presence of the recessive allele is associated with _____. A. codominance B. epistasis C. incomplete.](https://reader034.fdocuments.net/reader034/viewer/2022051114/56649e055503460f94af1509/html5/thumbnails/10.jpg)
14. More than two possible phenotypes for a particular trait can be attributed to inheritance by _____.
A. simple dominance B. multiple alleles C. epistasis D. pleiotropy
___
![Page 11: 2. The inability of the dominant allele to make up for the presence of the recessive allele is associated with _____. A. codominance B. epistasis C. incomplete.](https://reader034.fdocuments.net/reader034/viewer/2022051114/56649e055503460f94af1509/html5/thumbnails/11.jpg)
15. Blood type in humans is controlled by _____ allele(s).
A. one B. two C. three D. four
___
![Page 12: 2. The inability of the dominant allele to make up for the presence of the recessive allele is associated with _____. A. codominance B. epistasis C. incomplete.](https://reader034.fdocuments.net/reader034/viewer/2022051114/56649e055503460f94af1509/html5/thumbnails/12.jpg)
17. When there is a range of phenotypes, the inheritance is _____.
A. polygenic B. codominant C. incompletely dominant D. pleiotropic
___
![Page 13: 2. The inability of the dominant allele to make up for the presence of the recessive allele is associated with _____. A. codominance B. epistasis C. incomplete.](https://reader034.fdocuments.net/reader034/viewer/2022051114/56649e055503460f94af1509/html5/thumbnails/13.jpg)
19. When individuals make an abnormal form of the extracellular matrix protein, fibrillin, which affects many other traits, theinheritance is the result of ______.
A. codominance B. multiple alleles C. simple dominance D. pleiotropy ___
![Page 14: 2. The inability of the dominant allele to make up for the presence of the recessive allele is associated with _____. A. codominance B. epistasis C. incomplete.](https://reader034.fdocuments.net/reader034/viewer/2022051114/56649e055503460f94af1509/html5/thumbnails/14.jpg)
20. More phenotypes than expected may result from polygenic inheritance because of _____.
A. multiple alleles B. codominance C. environmental effects D. pleiotropy
___
![Page 15: 2. The inability of the dominant allele to make up for the presence of the recessive allele is associated with _____. A. codominance B. epistasis C. incomplete.](https://reader034.fdocuments.net/reader034/viewer/2022051114/56649e055503460f94af1509/html5/thumbnails/15.jpg)
22. Height in humans is affected by _____.
A. polygenic inheritance B. environmental effects such as nutrition C. both A and B ___
![Page 16: 2. The inability of the dominant allele to make up for the presence of the recessive allele is associated with _____. A. codominance B. epistasis C. incomplete.](https://reader034.fdocuments.net/reader034/viewer/2022051114/56649e055503460f94af1509/html5/thumbnails/16.jpg)
23. Environmental conditions can influence _____.
A. the skin color of humans B. the fur color of rabbits C. the appearance of a water buttercup D. all of the above ___
![Page 17: 2. The inability of the dominant allele to make up for the presence of the recessive allele is associated with _____. A. codominance B. epistasis C. incomplete.](https://reader034.fdocuments.net/reader034/viewer/2022051114/56649e055503460f94af1509/html5/thumbnails/17.jpg)
27. Which of the following supports the chromosomal theory of inheritance?
A. both chromosomes and alleles are paired in diploid cells B. homologous chromosomes and alleles separate during meiosis C. fertilization restores both the diploid chromosome number and allele pairs in the zygote. D. all of the above
___
![Page 18: 2. The inability of the dominant allele to make up for the presence of the recessive allele is associated with _____. A. codominance B. epistasis C. incomplete.](https://reader034.fdocuments.net/reader034/viewer/2022051114/56649e055503460f94af1509/html5/thumbnails/18.jpg)
28. Who determines the sex of the child?
A. the male B. the female
___
![Page 19: 2. The inability of the dominant allele to make up for the presence of the recessive allele is associated with _____. A. codominance B. epistasis C. incomplete.](https://reader034.fdocuments.net/reader034/viewer/2022051114/56649e055503460f94af1509/html5/thumbnails/19.jpg)
30. The sex chromosomes of a human female are _____.
A. XX B. XY C. YY
___
![Page 20: 2. The inability of the dominant allele to make up for the presence of the recessive allele is associated with _____. A. codominance B. epistasis C. incomplete.](https://reader034.fdocuments.net/reader034/viewer/2022051114/56649e055503460f94af1509/html5/thumbnails/20.jpg)
33. Male and female Drosophila flies have _____.
A. the same number of chromosomes as humans B. one pair of sex chromosomes C. the same number of sex chromosomes as humans D. both B and C ___
![Page 21: 2. The inability of the dominant allele to make up for the presence of the recessive allele is associated with _____. A. codominance B. epistasis C. incomplete.](https://reader034.fdocuments.net/reader034/viewer/2022051114/56649e055503460f94af1509/html5/thumbnails/21.jpg)
34. The allele for Drosophila eye color ____.
A. is on the Y chromosome B. is on the X chromosome C. is on one of its autosomes
___
![Page 22: 2. The inability of the dominant allele to make up for the presence of the recessive allele is associated with _____. A. codominance B. epistasis C. incomplete.](https://reader034.fdocuments.net/reader034/viewer/2022051114/56649e055503460f94af1509/html5/thumbnails/22.jpg)
37. Which of the following best describes a Drosophila with the genotype XRXr assuming XR = red eyes and Xr = white eyes?
A. female with red eyes B. female that is a carrier C. male with white eyes D. both A and B ___
![Page 23: 2. The inability of the dominant allele to make up for the presence of the recessive allele is associated with _____. A. codominance B. epistasis C. incomplete.](https://reader034.fdocuments.net/reader034/viewer/2022051114/56649e055503460f94af1509/html5/thumbnails/23.jpg)
38. Assuming XR = red eyes and Xr = white eye, what is the phenotype of an individual with the genotype XrY?
A. male with red eyes B. male with white eyes C. female with red eyes D. female with white eyes
___
![Page 24: 2. The inability of the dominant allele to make up for the presence of the recessive allele is associated with _____. A. codominance B. epistasis C. incomplete.](https://reader034.fdocuments.net/reader034/viewer/2022051114/56649e055503460f94af1509/html5/thumbnails/24.jpg)
39. An individual with the genotype XrY will produce which of the following gametes?
A. XR B. Xr C. Y D. both B and C ___
![Page 25: 2. The inability of the dominant allele to make up for the presence of the recessive allele is associated with _____. A. codominance B. epistasis C. incomplete.](https://reader034.fdocuments.net/reader034/viewer/2022051114/56649e055503460f94af1509/html5/thumbnails/25.jpg)
43. If XB = normal vision and Xb = color blindness, what are the chances a color blind female will have color blind sons if shehas children with a man with normal vision?
A. 100% B. 50% C. 25% D. none
___
![Page 26: 2. The inability of the dominant allele to make up for the presence of the recessive allele is associated with _____. A. codominance B. epistasis C. incomplete.](https://reader034.fdocuments.net/reader034/viewer/2022051114/56649e055503460f94af1509/html5/thumbnails/26.jpg)
44. What are the chances of a female, homozygous for normal vision, and a color blind male having color blind daughters?
A. 100% B. 50% C. 25% D. none ___
![Page 27: 2. The inability of the dominant allele to make up for the presence of the recessive allele is associated with _____. A. codominance B. epistasis C. incomplete.](https://reader034.fdocuments.net/reader034/viewer/2022051114/56649e055503460f94af1509/html5/thumbnails/27.jpg)
45. Carriers can also be described as _____.
A. homozygous recessive B. homozygous dominant C. heterozygous ___
![Page 28: 2. The inability of the dominant allele to make up for the presence of the recessive allele is associated with _____. A. codominance B. epistasis C. incomplete.](https://reader034.fdocuments.net/reader034/viewer/2022051114/56649e055503460f94af1509/html5/thumbnails/28.jpg)
47. There is a direct relationship between the frequency of crossing-over and the percentage of recombinant __________.
A. gametes B. phenotypes C. genotypes ___
![Page 29: 2. The inability of the dominant allele to make up for the presence of the recessive allele is associated with _____. A. codominance B. epistasis C. incomplete.](https://reader034.fdocuments.net/reader034/viewer/2022051114/56649e055503460f94af1509/html5/thumbnails/29.jpg)
48. The chromosomes can be mapped by determining the frequency of recombinant _____ that occurs due to the process ofcrossing over.
A. gametes B. phenotypes C. genotypes
___
![Page 30: 2. The inability of the dominant allele to make up for the presence of the recessive allele is associated with _____. A. codominance B. epistasis C. incomplete.](https://reader034.fdocuments.net/reader034/viewer/2022051114/56649e055503460f94af1509/html5/thumbnails/30.jpg)
49. Drosophila chromosome II carries the gene for _____.
A. antennae type B. wing type C. leg length D. all of the above ___
![Page 31: 2. The inability of the dominant allele to make up for the presence of the recessive allele is associated with _____. A. codominance B. epistasis C. incomplete.](https://reader034.fdocuments.net/reader034/viewer/2022051114/56649e055503460f94af1509/html5/thumbnails/31.jpg)
50. If crossing over occurs between two linked alleles of interest, a dihybrid produces _____ type(s) of gamete(s).
A. one B. two C. three D. four ___
![Page 32: 2. The inability of the dominant allele to make up for the presence of the recessive allele is associated with _____. A. codominance B. epistasis C. incomplete.](https://reader034.fdocuments.net/reader034/viewer/2022051114/56649e055503460f94af1509/html5/thumbnails/32.jpg)
51. When chromosomes are mapped by examining recombinant phenotypes, it is assumed that 1% of crossing over equals_____ map unit(s).
A. one B. two C. five D. ten
___
![Page 33: 2. The inability of the dominant allele to make up for the presence of the recessive allele is associated with _____. A. codominance B. epistasis C. incomplete.](https://reader034.fdocuments.net/reader034/viewer/2022051114/56649e055503460f94af1509/html5/thumbnails/33.jpg)
52. When individuals heterozygous for two traits that have linked alleles are crossed the expected phenotypic ratio of theoffspring is _____.
A. 1:1:1:1 B. 1:1 C. 3:1 D. 9:3:3:1
___
![Page 34: 2. The inability of the dominant allele to make up for the presence of the recessive allele is associated with _____. A. codominance B. epistasis C. incomplete.](https://reader034.fdocuments.net/reader034/viewer/2022051114/56649e055503460f94af1509/html5/thumbnails/34.jpg)
53. When a cross involving mutant genes b and e is done 3% recombinants are observed. When a cross involving mutantgenes t and e is done 22% recombinants are observed. When a cross involving mutant genes b and t is done 19%recombinants are observed. What is the correct order of the genes on the chromosome?
A. t, b, e B. b, t, e C. t, e, b
___
![Page 35: 2. The inability of the dominant allele to make up for the presence of the recessive allele is associated with _____. A. codominance B. epistasis C. incomplete.](https://reader034.fdocuments.net/reader034/viewer/2022051114/56649e055503460f94af1509/html5/thumbnails/35.jpg)
55. It is estimated that __________ of all flowering plants are polyploids.
A. 21% B. 47% C. 68% D. 92%
___
![Page 36: 2. The inability of the dominant allele to make up for the presence of the recessive allele is associated with _____. A. codominance B. epistasis C. incomplete.](https://reader034.fdocuments.net/reader034/viewer/2022051114/56649e055503460f94af1509/html5/thumbnails/36.jpg)
56. Triploids have _____ of each kind of chromosome.
A. one B. two C. three D. four
___
![Page 37: 2. The inability of the dominant allele to make up for the presence of the recessive allele is associated with _____. A. codominance B. epistasis C. incomplete.](https://reader034.fdocuments.net/reader034/viewer/2022051114/56649e055503460f94af1509/html5/thumbnails/37.jpg)
57. Nondisjunction can occur during meiosis I if _____.
A. members of a homologous pair fail to separate B. the daughter chromosomes fail to separate and instead go into the same daughter cell C. both A and B
___
![Page 38: 2. The inability of the dominant allele to make up for the presence of the recessive allele is associated with _____. A. codominance B. epistasis C. incomplete.](https://reader034.fdocuments.net/reader034/viewer/2022051114/56649e055503460f94af1509/html5/thumbnails/38.jpg)
59. When an individual has only one of a particular type of chromosome it's described as _____.
A. monosomy B. disomy C. trisomy D. tetrasomy
___
![Page 39: 2. The inability of the dominant allele to make up for the presence of the recessive allele is associated with _____. A. codominance B. epistasis C. incomplete.](https://reader034.fdocuments.net/reader034/viewer/2022051114/56649e055503460f94af1509/html5/thumbnails/39.jpg)
62. Down syndrome is a _____.
A. monosomy B. disomy C. trisomy D. tetrasomy
___
![Page 40: 2. The inability of the dominant allele to make up for the presence of the recessive allele is associated with _____. A. codominance B. epistasis C. incomplete.](https://reader034.fdocuments.net/reader034/viewer/2022051114/56649e055503460f94af1509/html5/thumbnails/40.jpg)
63. In humans, Turner syndrome _____.
A. is a monosomy B. involves the sex chromosomes C. results in a female D. all of the above ___
![Page 41: 2. The inability of the dominant allele to make up for the presence of the recessive allele is associated with _____. A. codominance B. epistasis C. incomplete.](https://reader034.fdocuments.net/reader034/viewer/2022051114/56649e055503460f94af1509/html5/thumbnails/41.jpg)
64. Nondisjunction can occur during _____.
A. anaphase I B. anaphase II C. both A and B ___
![Page 42: 2. The inability of the dominant allele to make up for the presence of the recessive allele is associated with _____. A. codominance B. epistasis C. incomplete.](https://reader034.fdocuments.net/reader034/viewer/2022051114/56649e055503460f94af1509/html5/thumbnails/42.jpg)
65. A trisomy occurs when an individual has three of _____.
A. a particular type of chromosome B. each kind of chromosome C. both A and B
___
![Page 43: 2. The inability of the dominant allele to make up for the presence of the recessive allele is associated with _____. A. codominance B. epistasis C. incomplete.](https://reader034.fdocuments.net/reader034/viewer/2022051114/56649e055503460f94af1509/html5/thumbnails/43.jpg)
67. Polyploidy generally results from _____.
A. mutation B. hybridization C. nondisjunction
___
![Page 44: 2. The inability of the dominant allele to make up for the presence of the recessive allele is associated with _____. A. codominance B. epistasis C. incomplete.](https://reader034.fdocuments.net/reader034/viewer/2022051114/56649e055503460f94af1509/html5/thumbnails/44.jpg)
68. Which of the following is a polyploid?
A. wheat B. watermelons C. cotton D. all of the above ___
![Page 45: 2. The inability of the dominant allele to make up for the presence of the recessive allele is associated with _____. A. codominance B. epistasis C. incomplete.](https://reader034.fdocuments.net/reader034/viewer/2022051114/56649e055503460f94af1509/html5/thumbnails/45.jpg)
70. A(n) _____ is the movement of a segment of a chromosome from one chromosome to another nonhomologouschromosome.
A. inversion B. translocation C. deletion D. duplication
___
![Page 46: 2. The inability of the dominant allele to make up for the presence of the recessive allele is associated with _____. A. codominance B. epistasis C. incomplete.](https://reader034.fdocuments.net/reader034/viewer/2022051114/56649e055503460f94af1509/html5/thumbnails/46.jpg)
71. When a broken segment from one chromosome attaches to its homologue a(n) _____ occurs.
A. duplication B. deletion C. inversion D. both A and B ___
![Page 47: 2. The inability of the dominant allele to make up for the presence of the recessive allele is associated with _____. A. codominance B. epistasis C. incomplete.](https://reader034.fdocuments.net/reader034/viewer/2022051114/56649e055503460f94af1509/html5/thumbnails/47.jpg)
72. Which of the following may result in abnormal gametes and offspring?
A. inversion B. translocation C. deletion D. all of the above ___
![Page 48: 2. The inability of the dominant allele to make up for the presence of the recessive allele is associated with _____. A. codominance B. epistasis C. incomplete.](https://reader034.fdocuments.net/reader034/viewer/2022051114/56649e055503460f94af1509/html5/thumbnails/48.jpg)
75. Down syndrome that tends to run in the family of either the mother or father is the result of _____.
A. deletion B. inversion C. duplication D. translocation ___
![Page 49: 2. The inability of the dominant allele to make up for the presence of the recessive allele is associated with _____. A. codominance B. epistasis C. incomplete.](https://reader034.fdocuments.net/reader034/viewer/2022051114/56649e055503460f94af1509/html5/thumbnails/49.jpg)
76. Cri du chat syndrome is the result of a(n) _____.
A. inversion B. translocation C. deletion D. duplication ___
![Page 50: 2. The inability of the dominant allele to make up for the presence of the recessive allele is associated with _____. A. codominance B. epistasis C. incomplete.](https://reader034.fdocuments.net/reader034/viewer/2022051114/56649e055503460f94af1509/html5/thumbnails/50.jpg)
78. Chromosomes may be broken by _____.
A. viruses B. radiation C. certain organic chemicals D. all of the above ___
![Page 51: 2. The inability of the dominant allele to make up for the presence of the recessive allele is associated with _____. A. codominance B. epistasis C. incomplete.](https://reader034.fdocuments.net/reader034/viewer/2022051114/56649e055503460f94af1509/html5/thumbnails/51.jpg)
79. A(n) _____ occurs when a segment of chromosome is turned around 180o.
A. inversion B. translocation C. deletion D. duplication
___