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Q. No.Match the Mendel’s Laws given in Column I with their correct definition in Column II and select the correct match from the codes given:
Codes:
| Column I | Column II | ||
| A. | Law of dominance | P. | During gamete formation, the alleles for each gene segregate from each other so that each gamete carries only one allele for each gene. |
| B. | Law of segregation | Q. | In a heterozygote, one trait will conceal the presence of another trait for the same characteristic. |
| C. | Law of independent assortment | R. | Genes of different traits can segregate independently during the formation of gametes. |
| A | B | C | |
| 1. | Q | R | P |
| 2. | Q | P | R |
| 3. | P | Q | R |
| 4. | R | Q | P |
Subtopic: Law of Segregation and Law of Independent Assortment |
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Consider the given two statements:
| I: | In a test cross, the allele the individual in question [one that expresses the dominant phenotype] passes on, determines the phenotype of the offspring. |
| II: | The homozygous recessive individual can only pass on recessive alleles. |
| 1. | Both I and II are correct and II explains I |
| 2. | Both I and II are correct but II does not explain I |
| 3. | I is correct but II is incorrect |
| 4. | I is incorrect but II is correct |
Subtopic: Monohybrid Cross: Further Understanding |
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Match the terms given in Column I with their given definition in Column II and select the correct match from the codes given:
Codes:
| Column I | Column II | ||
| A | Homozygous | P | having two different alleles of a particular gene or genes |
| B | Heterozygous | Q | having two identical alleles of a particular gene or genes |
| C | Homologous | R | not having the same alleles or genes in the same order of arrangement |
| D. | Heterologous | S | having the same alleles or genes in the same order of arrangement |
| A | B | C | D | |
| 1. | P | Q | R | S |
| 2. | S | R | Q | P |
| 3. | Q | P | S | R |
| 4. | P | Q | S | R |
Subtopic: Introduction to Genetics: 1 |
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Match each item in Column I with one given in Column II and select the correct match from the codes given:
Codes:
| Column I [Organism] |
Column II [Mechanism of sex determination] |
||
| A. | Honey bees | P. | Genic balance |
| B. | Grasshopper | Q. | ZZ-ZW, female heterogamety |
| C. | Birds | R. | XX-XO male heterogamety |
| D. | Fruit fly | S. | Haplo-diploidy |
| A | B | C | D | |
| 1. | Q | P | S | R |
| 2. | R | P | Q | S |
| 3. | P | Q | R | S |
| 4. | S | R | Q | P |
Subtopic: Sex Determination |
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| Assertion (A): | The genetic sex of an individual with Klinefelter's syndrome is female |
| Reason (R): | Only X-chromosome is present in their genotype |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A) |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A) |
| 3. | (A) is True but (R) is False |
| 4. | Both (A) and (R) are False |
Subtopic: Sex Aneuploidy - Turner & Klinefelter Syndrome |
70%
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Study the given diagram and select the correct option:
| 1. | The karyotype is of an individual suffering from Down’s syndrome |
| 2. | The number of autosomes seen is 43 |
| 3. | The genetic sex of this individual must be female |
| 4. | The fertility will be maintained in this individual |
Subtopic: Sex Aneuploidy - Turner & Klinefelter Syndrome |
51%
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Consider the two statements
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
| I: | Phenylketonuria is caused by mutation in a pleiotropic gene |
| II: | Sickle cell anemia is inherited as an autosomal-recessive condition |
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Polygenic Inheritance & Pleiotropy | Mendelian Disorders: Sickle Cell Anemia |
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Subtopic: Sex Determination | Sex Determination: Further Considerations |
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Study the given diagram and select the best option:
| 1. | The mating between I-1 and I-II is consanguineous |
| 2. | The first born child of I-1 and I-II is a male |
| 3. | The first born child of I-1 and I-II is a female |
| 4. | The first born child of I-1 and I-II is affected by a genetic disease |
Subtopic: Pedigree Analysis: Basics | Pedigree Analysis: Problem Solving |
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Identify the option where the names of scientists given in Column I are not correctly matched with their contribution to the science of genetics:
| Column I | Column II | |
| 1. | De Vries, Correns, Tschermak | Disproved Mendel’s law of Independent Assortment |
| 2. | Sutton and Boveri | Gave the chromosomal theory of inheritance |
| 3. | Alfred Sturtevant | Developed the first genetic map |
| 4. | T. H. Morgan | Discovery of the white-eyed mutation in the fruit fly |
Subtopic: Chromosomal Basis of Inheritance: Introduction | Chromosomal Basis of Inheritance: Further Considerations | Linkage Types | Recombination & Gene Mapping |
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