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Q. No.Which of the following traits selected by Mendel for his artificial hybridisation experiments
was a recessive trait in Pisum sativum?
1. Yellow pod colour
2. Yellow seed colour
3. Inflated pod shape
4. Purple flower colour
Subtopic: Monohybrid Cross: Further Understanding |
85%
From NCERT
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Which of the following terms, as related to genetics, refers to having inherited the same versions (alleles) of a genomic marker from each biological parent?
1. Homologous
2. Heterologous
3. Homozygous
4. Heterozygous
1. Homologous
2. Heterologous
3. Homozygous
4. Heterozygous
Subtopic: Monohybrid Cross: 1 | Dihybrid Cross: General Consideration |
71%
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Monohybrid cross can explain:
1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
| I: | Law of dominance |
| II: | Law of segregation |
| III: | Law of independent assortment |
1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
Subtopic: Monohybrid Cross: 1 |
84%
From NCERT
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In Mendelian Inheritance:
| I: | Some alleles are dominant while others are recessive; an organism with at least one dominant allele will display the effect of the dominant allele. |
| II: | During gamete formation, the alleles for each gene segregate from each other so that each gamete carries only one allele for each gene. |
| III: | Genes of different traits can segregate independently during the formation of gametes. |
1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
Subtopic: Dihybrid Cross Analysis |
86%
From NCERT
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Consider the two statements:
| I: | In Incomplete Dominance, F1 has a phenotype that does not resemble either of the two parents and is in between the two. |
| II: | In Co-Dominance, F1 has a phenotype that resembles both the parents. |
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Law of Segregation and Law of Independent Assortment |
90%
From NCERT
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In ABO blood group system, the number of alleles, the number of genotypes and the number of phenotypes possible respectively is:
1. 3, 4 and 6
2. 3, 6 and 4
3. 2, 4 and 6
4. 2, 6 and 4
1. 3, 4 and 6
2. 3, 6 and 4
3. 2, 4 and 6
4. 2, 6 and 4
Subtopic: Co-dominance |
83%
From NCERT
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Consider the given two statements:
| Assertion (A): | Multiple alleles can be found only when population studies are made. |
| Reason (R): | Multiple alleles for the same gene are always located on heterologous chromosomes. |
| 1. | Both (A) and (R) are True and (R) correctly explains (A) |
| 2. | Both (A) and (R) are True but (R) does not correctly explain (A) |
| 3. | (A) is True but (R) is False |
| 4. | (A) is False but (R) is True |
Subtopic: Dominance Deviation from Mendel: 1 |
75%
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In pea seeds, starch synthesis in pea seeds is controlled by one gene. A plant with genotype Bb will produce:
I: large starch grains
II: smaller starch grains
III: intermediate sized starch grains
IV: round seeds
V: wrinkled seeds
1. Only I and IV
2. Only II and V
3. Only III and IV
4. Only III and V
I: large starch grains
II: smaller starch grains
III: intermediate sized starch grains
IV: round seeds
V: wrinkled seeds
1. Only I and IV
2. Only II and V
3. Only III and IV
4. Only III and V
Subtopic: Co-dominance |
82%
From NCERT
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Using the genotypic symbols Y for dominant yellow seed colour and y for recessive green seed colour, R for round shaped seeds and r for wrinkled seed shape, when a plant with genotype RrYy is self-hybridized, the proportion of progeny with yellow seeds is expected to be:
1. 9/16
2. 3/16
3. 3/4
4. 1/4
1. 9/16
2. 3/16
3. 3/4
4. 1/4
Subtopic: Dihybrid Cross Analysis |
64%
From NCERT
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This type of inheritance pattern for the trait shown in the given pedigree most likely is:
1. Autosomal Dominant
2. Autosomal Recessive
3. X-linked Dominant
4. X linked recessive
1. Autosomal Dominant
2. Autosomal Recessive
3. X-linked Dominant
4. X linked recessive
Subtopic: Pedigree Analysis: Basics |
83%
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