ZOO 2 - L4 Non Mendelian
Okay, here are 40 questions in the requested format, including True or False questions, based on the provided text about Non-Mendelian Inheritance.
Multiple Choice Questions:
1. What is the central concept of Non-Mendelian Inheritance?
(space)
a) Traits are always dominant or recessive.
b) Inheritance follows Mendel’s laws strictly.
c) Genetic patterns deviate from Mendel’s laws.
d) Only single gene traits are considered.
--> c) Genetic patterns deviate from Mendel’s laws\
2. In which type of inheritance is the heterozygous phenotype a mixture of the two homozygous phenotypes?
(space)
a) Codominance
b) Complete Dominance
c) Incomplete Dominance
d) Multiple Alleles
--> c) Incomplete Dominance\
3. Which of these is NOT an example of incomplete dominance in humans mentioned in the text?
(space)
a) Hair texture
b) Skin color
c) Lip shape
d) ABO blood type
--> d) ABO blood type\
4. What happens when neither allele is fully dominant in incomplete dominance?
(space)
a) One allele completely masks the other.
b) Both alleles are fully expressed.
c) An intermediate phenotype is produced.
d) Only the recessive phenotype is visible.
--> c) An intermediate phenotype is produced\
5. What distinguishes codominance from incomplete dominance?
(space)
a) Codominance involves blending of traits.
b) In codominance, both alleles are fully and separately expressed.
c) Incomplete dominance shows both traits distinctly.
d) Codominance only applies to plants.
--> b) In codominance, both alleles are fully and separately expressed\
6. Which human blood type demonstrates codominance?
(space)
a) Type A
b) Type B
c) Type O
d) Type AB
--> d) Type AB\
7. What is the function of an antigen in the ABO blood group system?
(space)
a) To attack foreign blood cells.
b) To trigger an immune response.
c) To carry oxygen.
d) To produce antibodies.
--> b) To trigger an immune response\
8. What genetic condition is associated with partial codominance and resistance to malaria?
(space)
a) Hemophilia
b) Cystic Fibrosis
c) Sickle cell trait
d) Color blindness
--> c) Sickle cell trait\
9. What is the defining feature of "multiple alleles"?
(space)
a) Multiple genes for one trait in an individual.
b) More than two allele choices for a gene in a population.
c) Multiple mutations in a single allele.
d) Multiple traits controlled by one allele.
--> b) More than two allele choices for a gene in a population\
10. Which of the following traits is NOT listed as an example of multiple alleles in humans?
(space)
a) ABO blood group system
b) Eye color
c) Hair color
d) Height
--> d) Height\
Term Identification Questions:
11. _________ : The type of inheritance where heterozygous individuals exhibit a phenotype that is intermediate between the two homozygous phenotypes.
(space)
a) Codominance
b) Non-Mendelian Inheritance
c) Incomplete Dominance
d) Multiple Alleles
--> c) Incomplete Dominance\
12. _________ : The type of inheritance where both alleles are equally and distinctly expressed in the heterozygous condition.
(space)
a) Incomplete Dominance
b) Polygenic Inheritance
c) Codominance
d) Non-Mendelian Inheritance
--> c) Codominance\
13. _________ : The genetic scenario where a gene has more than two possible alleles within a population.
(space)
a) Polygenic Inheritance
b) Incomplete Dominance
c) Multiple Alleles
d) Codominance
--> c) Multiple Alleles\
14. _________ : A substance that, when introduced into the body, triggers an immune response.
(space)
a) Antibody
b) Gene
c) Antigen
d) Allele
--> c) Antigen\
15. The ABO blood group system is determined by _________ , with alleles Iᴬ, Iᴮ, and i.
(space)
a) Incomplete Dominance
b) Multiple Alleles
c) Codominance
d) Polygenic Inheritance
--> b) Multiple Alleles\
16. The wavy hair phenotype resulting from straight and curly hair parents is an example of _________ .
(space)
a) Codominance
b) Complete Dominance
c) Incomplete Dominance
d) Multiple Alleles
--> c) Incomplete Dominance\
17. In sickle cell trait, the presence of both normal and sickle-shaped red blood cells demonstrates _________ .
(space)
a) Incomplete Dominance
b) Complete Dominance
c) Codominance
d) Polygenic Inheritance
--> c) Codominance\
18. Type O blood is referred to as the universal _________ in blood transfusions.
(space)
a) Recipient
b) Donor
c) Antibody
d) Antigen
--> b) Donor\
Fill in the Blanks Questions:
19. __________ inheritance patterns do not follow Mendel's laws of dominance and recessiveness.
(space)
a) Mendelian
b) Complete Dominance
c) Non-Mendelian
d) Single Gene
--> c) Non-Mendelian\
20. In incomplete dominance, the heterozygous phenotype is a __________ of the two homozygous phenotypes.
(space)
a) Masking
b) Dominant Expression
c) Blend
d) Recessive Expression
--> c) Blend\
21. ___________ occurs when both alleles are fully expressed in a heterozygote, showing both phenotypes distinctly.
(space)
a) Incomplete Dominance
b) Complete Dominance
c) Codominance
d) Blending Inheritance
--> c) Codominance\
22. A gene is said to have ___________ __________ when there are more than two possible alleles in a population.
(space)
a) Incomplete Dominance
b) Multiple Alleles
c) Polygenic Traits
d) Codominance
--> b) Multiple Alleles\
23. The ‘I’ in Iᴬ and Iᴮ alleles refers to ___________, which are found on red blood cells.
(space)
a) Immunoglobulins
b) Isoagglutinogens
c) Inherited factors
d) Immune cells
--> b) Isoagglutinogens\
24. Type AB blood exhibits ___________ because both A and B antigens are expressed equally.
(space)
a) Incomplete Dominance
b) Complete Dominance
c) Codominance
d) Recessive Inheritance
--> c) Codominance\
25. Individuals with sickle cell _________ (HᴬHˢ) are typically resistant to malaria.
(space)
a) Anemia
b) Mutation
c) Trait
d) Disease
--> c) Trait\
26. Type _________ blood is known as the universal recipient because it lacks antibodies against A and B antigens.
(space)
a) O
b) A
c) B
d) AB
--> d) AB\
Enumeration through Exclusion Questions (Choose the Correct Statement(s)):
27. Which statements are TRUE about Codominance?
I. Both alleles are fully expressed in heterozygotes.
II. The heterozygous phenotype is a blend of homozygous phenotypes.
III. ABO blood type is an example.
IV. It results in an intermediate phenotype.
a) I and III are correct
b) II and III are correct
c) III and IV are correct
d) I, II, and IV are correct
--> a) I and III are correct\
28. Which statements are TRUE regarding Multiple Alleles?
I. Each individual can have more than two alleles for a gene.
II. A population can have more than two alleles for a gene.
III. Eye color inheritance involves multiple alleles.
IV. It limits genetic diversity.
a) II and III are correct
b) I and II are correct
c) III and IV are correct
d) II, III, and IV are correct
--> a) II and III are correct\
29. Which of the following are examples of Non-Mendelian Inheritance discussed in the text?
I. Incomplete Dominance
II. Complete Dominance
III. Codominance
IV. Multiple Alleles
a) I, II, and III are correct
b) I, III, and IV are correct
c) II, III, and IV are correct
d) I, II, III, and IV are correct
--> b) I, III, and IV are correct\
30. Which of the following human traits exhibit Incomplete Dominance, as per the text?
I. Hair texture
II. ABO blood type
III. Lip shape
IV. Skin color
a) I and II are correct
b) I, III, and IV are correct
c) II, III, and IV are correct
d) I and III are correct
--> b) I, III, and IV are correct\
31. Which of the following are examples of human traits involving Multiple Alleles?
I. Hair color
II. Sickle cell trait
III. Eye color
IV. ABO blood group system
a) I, III, and IV are correct
b) II and III are correct
c) III and IV are correct
d) I, II, and IV are correct
--> a) I, III, and IV are correct\
32. Which of the following blood types can be produced if a Type A (Iᴬi) and Type B (Iᴮi) individual have children?
I. Type A
II. Type B
III. Type AB
IV. Type O
a) I, II, and III are correct
b) II, III, and IV are correct
c) I, III, and IV are correct
d) I, II, III, and IV are correct
--> d) I, II, III, and IV are correct\
True or False Questions:
33. True or False: Non-Mendelian inheritance patterns always result in recessive phenotypes.
(space)
a) True
b) False
--> b) False\
34. True or False: In incomplete dominance, the dominant allele completely masks the recessive allele.
(space)
a) True
b) False
--> b) False\
35. True or False: Codominance leads to a blending of the two homozygous phenotypes in heterozygotes.
(space)
a) True
b) False
--> b) False\
36. True or False: An individual can have three alleles for the ABO blood group gene.
(space)
a) True
b) False
--> b) False\
37. True or False: Type O blood is the universal recipient for blood transfusions.
(space)
a) True
b) False
--> b) False\
38. True or False: Sickle cell trait (HᴬHˢ) provides some protection against malaria.
(space)
a) True
b) False
--> a) True\
Bonus Questions (More Challenging):
39. Which of the following best describes the relationship between incomplete dominance and codominance?
(space)
a) They are the same thing.
b) They are both types of Mendelian inheritance.
c) They are both types of Non-Mendelian inheritance, but differ in heterozygous phenotype expression.
d) Incomplete dominance is a type of codominance.
--> c) They are both types of Non-Mendelian inheritance, but differ in heterozygous phenotype expression\
40. If hair color is determined by multiple alleles with incomplete dominance, and skin color is determined by multiple alleles with polygenic inheritance, what is the key difference in their inheritance patterns based on the text?
(space)
a) Only hair color is influenced by environmental factors.
b) Skin color inheritance is more complex and influenced by environmental factors, while hair color is primarily genetic.
c) Hair color involves more genes than skin color.
d) Skin color follows Mendelian inheritance, but hair color does not.
--> b) Skin color inheritance is more complex and influenced by environmental factors, while hair color is primarily genetic\
Situational Questions (Application):
41. A woman with wavy hair (SC genotype for hair texture, incomplete dominance) and a man with curly hair (CC) are planning to have children. What is the probability that their child will have curly hair?
(space)
a) 0%
b) 25%
c) 50%
d) 75%
--> c) 50%\
42. In snapdragons, flower color exhibits incomplete dominance: RR is red, WW is white, and RW is pink. If a pink snapdragon is crossed with a white snapdragon, what percentage of offspring is expected to be pink?
(space)
a) 0%
b) 25%
c) 50%
d) 100%
--> c) 50%\
43. A hospital needs to perform an urgent blood transfusion for a patient with Type B blood. Which blood type would be the SAFEST option if Type B blood is temporarily unavailable, but Type O blood is in stock?
(space)
a) Type A
b) Type AB
c) Type O
d) Type B (always preferred, but unavailable in this scenario)
--> c) Type O\
44. A couple, both with sickle cell trait (HᴬHˢ), are concerned about their children inheriting sickle cell anemia (HˢHˢ). What is the chance that their child will inherit sickle cell anemia?
(space)
a) 0%
b) 25%
c) 50%
d) 75%
--> b) 25%\
45. A child has Type O blood, and the mother is Type A (genotype Iᴬi). What are the possible blood types of the biological father?
(space)
a) Only Type O
b) Type A or Type O
c) Type B or Type O
d) Type A, Type B, Type AB, or Type O
--> b) Type A or Type O\
46. A brown-eyed man (Bb genotype, assuming simplified eye color inheritance with B dominant for brown, b recessive for blue) and a green-eyed woman (BG genotype, G intermediate allele) have a child. What is the probability their child will have blue eyes (bb genotype)?
(space)
a) 0%
b) 25%
c) 50%
d) 75%
--> a) 0%\
47. Speckled chickens (BW genotype, codominance for feather color) are more popular in a certain market. If a farmer wants to breed chickens that are ONLY speckled, which of the following crosses would be MOST effective over multiple generations?
(space)
a) Black chicken (BB) x White chicken (WW)
b) Speckled chicken (BW) x Speckled chicken (BW)
c) Black chicken (BB) x Speckled chicken (BW)
d) White chicken (WW) x Speckled chicken (BW)
--> b) Speckled chicken (BW) x Speckled chicken (BW)\
48. In a population, a new trait appears that shows a blend of two homozygous traits in heterozygotes. Is this more likely to be an example of codominance or incomplete dominance?
(space)
a) Codominance
b) Incomplete Dominance
c) Complete Dominance
d) Multiple Alleles
--> b) Incomplete Dominance\
49. Understanding Non-Mendelian inheritance is particularly crucial in which field to ensure compatibility and prevent adverse reactions?
(space)
a) Ecology
b) Paleontology
c) Blood Transfusion Medicine
d) Botany
--> c) Blood Transfusion Medicine\
50. A student believes that if a trait is not Mendelian, it means only environmental factors affect it. Is this belief correct or incorrect?
(space)
a) Correct, Non-Mendelian traits are purely environmental.
b) Incorrect, Non-Mendelian inheritance is still genetic but doesn't follow simple dominant/recessive patterns.
c) Correct, Mendel's laws cover all genetic inheritance, and deviations are non-genetic.
d) Incorrect, Non-Mendelian inheritance means genes have no role, only the environment matters.
--> b) Incorrect, Non-Mendelian inheritance is still genetic but doesn't follow simple dominant/recessive patterns\
Punnett Square Problems:
51. In snapdragons, red flower color (RR) is incompletely dominant to white flower color (WW), with heterozygotes (RW) being pink. Cross a red snapdragon (RR) with a white snapdragon (WW). What are the phenotypic ratios of the offspring?
(space)
a) 100% Red
b) 75% Red : 25% White
c) 100% Pink
d) 50% Red : 50% White
--> c) 100% Pink\
52. Human hair texture shows incomplete dominance: straight (SS), curly (CC), and wavy (SC). If two wavy-haired individuals (SC) have children, what are the expected phenotypic ratios for hair texture in their offspring?
(space)
a) 1:2:1 (Straight:Wavy:Curly)
b) 3:1 (Wavy:Straight and Curly combined)
c) 100% Wavy
d) 1:1:1 (Straight:Wavy:Curly)
--> a) 1:2:1 (Straight:Wavy:Curly)\
53. Consider the ABO blood group system. Cross a heterozygous Type A individual (Iᴬi) with a heterozygous Type B individual (Iᴮi). What is the probability of having a child with Type O blood?
(space)
a) 0%
b) 25%
c) 50%
d) 75%
--> b) 25%\
54. If a person with Type AB blood (IᴬIᴮ) has a child with a person with Type O blood (ii), what are the possible blood types (phenotypes) of their offspring?
(space)
a) Type A and Type B only
b) Type AB and Type O only
c) Type A, Type B, Type AB, and Type O
d) Type A and Type O only
--> a) Type A and Type B only\
55. Two parents with sickle cell trait (HᴬHˢ) have children. What is the probability that their child will have normal hemoglobin (HᴬHᴬ), sickle cell trait (HᴬHˢ), or sickle cell anemia (HˢHˢ)? Express the ratio.
(space)
a) 1:2:1 (Normal:Trait:Anemia)
b) 3:1 (Normal and Trait:Anemia)
c) 1:1:2 (Normal:Trait:Anemia)
d) 2:1:1 (Normal:Trait:Anemia)
--> a) 1:2:1 (Normal:Trait:Anemia)\