Select Chapter Topics:
Q. No.Match List-I with List-II
List-I
List-II
(a)
Haemophilia
(i)
Inborn error of metabolism which lacks an enzyme that converts phenylalanine into tyrosine
(b)
Down's Syndrome
(ii)
Sex-linked recessive disorder; a defect in blood coagulation
(c)
Phenylketonuria
(iii)
Presence of additional copy of X-chromosome (44+XXY)
(d)
Klinefelter's Syndrome
(iv)
Additional copy of chromosome number 21
Choose the correct answer from the options given below:
(a)
(b)
(c)
(d)
1.
(ii)
(iv)
(i)
(iii)
2.
(iv)
(ii)
(i)
(iii)
3.
(ii)
(iii)
(i)
(iv)
4
(i)
(ii)
(iii)
(iv)
Subtopic: Mendelian Disorders | Non - Disjunction & Aneuploidy | Sex Aneuploidy - Turner & Klinefelter Syndrome |
87%
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Assuming that fur colour of an animal is dark, range of colour shade and white. A cross is made between a male (AABBCC) with dark fur colour and a female (aabbcc) with white fur colour. What would be the fur colour of F1 generation?
1. All intermediate colour
2. Range of colour shade
3. All dark colour
4. All white colour
Subtopic: Polygenic Inheritance & Pleiotropy |
63%
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In Drosophila, the genes for color of body and color of eyes are situated on _______.
1. both the sex chromosomes
2. autosomes
3. Y-chromosome
4. X-chromosome
Subtopic: Linkage | Recombination Gene Mapping |
62%
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A low frequency recombination indicates that the genes are:
1. Located far apart from each other
2. Located close to each other
3. Not linked
4. Present on different c
Subtopic: Linkage | Recombination Gene Mapping |
77%
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Given below are two statements :
In light of the above statements, choose the correct answer from the options given below :
1. Both Statement I and Statement II are correct.
2. Both Statement I and Statement II are incorrect.
3. Statement I is correct but Statement II is incorrect.
4. Statement I is incorrect but Statement II is correct.
| Statement I: | Sickle cell anaemia and Haemophilia are autosomal dominant traits. |
| Statement II: | Sickle cell anaemia and Haemophilia are disorders of the blood. |
In light of the above statements, choose the correct answer from the options given below :
1. Both Statement I and Statement II are correct.
2. Both Statement I and Statement II are incorrect.
3. Statement I is correct but Statement II is incorrect.
4. Statement I is incorrect but Statement II is correct.
Subtopic: Mendelian Disorders: Hemophilia |
81%
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The chromosomal theory of inheritance was proposed by:
1. Thomas Morgan
2. Sutton and Boveri
3. Gregor Mendel
4. Robert Brown
1. Thomas Morgan
2. Sutton and Boveri
3. Gregor Mendel
4. Robert Brown
Subtopic: Chromosomal Basis of Inheritance: Introduction |
84%
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If a female individual is with small round head, furrowed tongue, partially open mouth and broad palm with characteristic palm crease. Also the physical, psychomotor and mental development is retarded. The karyotype analysis of such an individual will show :
1. 47 chromosomes with XXY sex chromosomes
2. 45 chromosomes with XO sex chromosomes
3. 47 chromosomes with XYY sex chromosomes
4. Trisomy of chromosome 21
1. 47 chromosomes with XXY sex chromosomes
2. 45 chromosomes with XO sex chromosomes
3. 47 chromosomes with XYY sex chromosomes
4. Trisomy of chromosome 21
Subtopic: Non - Disjunction & Aneuploidy |
84%
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What is the expected percentage of F2 progeny with yellow and inflated pod in dihybrid cross experiment involving pea plants with green coloured, inflated pod and yellow coloured constricted pod ?
1. 100%
2. 56.25%
3. 18.75 %
4. 9%
1. 100%
2. 56.25%
3. 18.75 %
4. 9%
Subtopic: Dihybrid Cross Analysis |
53%
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Select the incorrect match regarding the symbols used in Pedigree analysis:
| 1. | .svg.svg) |
Sex unspecified |
| 2. | .svg.svg) |
Affected individual |
| 3. | .svg.svg) |
Consanguineous mating |
| 4. | .svg.svg) |
Parent with male child affected with disease |
Subtopic: Pedigree Analysis: Basics |
84%
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A normal girl, whose mother is haemophilic marries a male with no ancestral history of haemophilia. What will be the possible phenotypes of the offsprings?
Choose the most appropriate answer from the options given below:
1. (a) and (b) only
2. (b) and (c) only
3. (a) and (d) only
4. (b) and (d) only
| (a) | Haemophilic son and haemophilic daughter. |
| (b) | Haemophilic son and carrier daughter. |
| (c) | Normal daughter and normal son. |
| (d) | Normal son and haemophilic daughter. |
1. (a) and (b) only
2. (b) and (c) only
3. (a) and (d) only
4. (b) and (d) only
Subtopic: Mendelian Disorders: Hemophilia |
73%
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