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Q. No.A pink flowered Snapdragon plant was crossed with red flowered Snapdragon plant. What type of phenotype/s is/are expected in the progeny?
1. Red flowered as well as pink flowered plants
2. Only pink flowered plants
3. Red, Pink as well as white flowered plants
4. Only red flowered plants
Subtopic: Â Law of Segregation |Â Dominance Deviation from Mendel: 1 |
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In a plant, black seed color (BB/Bb) is dominant over white seed color (bb). In order to find out the genotype of black seed plant, with which of the following genotype will you cross it?
1. bb
2. Bb
3. BB/Bb
4. BB
1. bb
2. Bb
3. BB/Bb
4. BB
Subtopic: Â Monohybrid Cross: Further Understanding |
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Match List I with List II:
Choose the correct answer from the options given below:
1. A-II, B-III,C-IV, D-I
2. A-III, B-IV,C-I, D-II
3. A-IV, B-I, C-II, D-III
4. A-I, B-II, C-III, D-IV
| List I | List II | ||
| A. | Down's syndrome | I. | \(11^{\text {th }}\) chromosome |
| B. | \(\alpha\) -Thalassemia | II. | \(' \mathrm{X}Â '\) chromosome |
| C. | \(\beta\) -Thalassemia | III. | \(21^{\text {st }}\) chromosome |
| D. | Klinefelter's syndrome |
IV. | \(16^{\text {th }}\) chromosome |
Choose the correct answer from the options given below:
1. A-II, B-III,C-IV, D-I
2. A-III, B-IV,C-I, D-II
3. A-IV, B-I, C-II, D-III
4. A-I, B-II, C-III, D-IV
Subtopic: Â Mendelian Disorders |Â Chromosomal Disorders |
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NEET - 2024
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As per \(\mathrm{ABO}\) blood grouping system, the blood group of father is \(\mathrm{B^+}\), mother is \(\mathrm{A^+}\) and child is \(\mathrm{O^+}\). Their respective genotype can be
A. \(\mathrm{I^{B}i / I^{A}i / ii}\)
B. \(\mathrm{I}^{\mathrm{B}} \mathrm{I}^{\mathrm{B}} / \mathrm{I}^{\mathrm{A}} \mathrm{I}^{\mathrm{A}} / \mathrm{ii}\)
C. \(\mathrm{I^AI^B/iI^A/I^Bi}\)
D. \(\mathrm{I^{A}i / I^{B}i / I^{A}i}\)
E. \(\mathrm{i I^B / i I^A / I^A I^B}\)
Choose the most appropriate answer from the options given below:
1. B only
2. C & B only
3. D & E only
4. A only
A. \(\mathrm{I^{B}i / I^{A}i / ii}\)
B. \(\mathrm{I}^{\mathrm{B}} \mathrm{I}^{\mathrm{B}} / \mathrm{I}^{\mathrm{A}} \mathrm{I}^{\mathrm{A}} / \mathrm{ii}\)
C. \(\mathrm{I^AI^B/iI^A/I^Bi}\)
D. \(\mathrm{I^{A}i / I^{B}i / I^{A}i}\)
E. \(\mathrm{i I^B / i I^A / I^A I^B}\)
Choose the most appropriate answer from the options given below:
1. B only
2. C & B only
3. D & E only
4. A only
Subtopic: Â Co-dominance |
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ABO blood group is an example of
1. Incomplete dominance
2. Multiple allele
3. Pleiotropy
4. Linkage
1. Incomplete dominance
2. Multiple allele
3. Pleiotropy
4. Linkage
Subtopic: Â Co-dominance |
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A cross between tall plants was made resulting in offspring of tall and dwarf plants with ratio 3 : 1. The genotype(s) of both parents are:
1. TT and TT
2. Tt and tt
3. Tt and Tt
4. tt and tt
1. TT and TT
2. Tt and tt
3. Tt and Tt
4. tt and tt
Subtopic: Â Monohybrid Cross: 1 |Â Monohybrid Cross: Further Understanding |
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Which of the following is NOT an autosomal recessive disorder?
1. Sickle cell anemia
2. Phenylketonuria
3. Haemophilia
4. Thalassemia
1. Sickle cell anemia
2. Phenylketonuria
3. Haemophilia
4. Thalassemia
Subtopic: Â Mendelian Disorders |Â Mendelian Disorders: Hemophilia |
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Given below are two statements : One is labelled as Assertion (A) and the other is labelled as Reason (R).
In the light of the above statements, choose the correct answer from the options given below:
| Assertion (A): | In honey bee population, sons do not have fathers but have grandfathers. |
| Reason (R): | Haploidy in drones of honey bee is due to parthenogenesis while fertilisation results into female bees. |
| 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. | (A) is False but (R) is True. |
Subtopic: Â Sex Determination |
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A yellow seeded and violet flowered pea plant was crossed with a green seeded and white flowered pea plant. The progeny showed plants with four different phenotypes. The yellow seeded and violet flowered parent must be:
| 1. | Double homozygous |
| 2. | Double heterozygous |
| 3. | Homozygous for seed colour and heterozygous for flower colour. |
| 4. | Heterozygous for seed colour and homozygous for flower colour. |
Subtopic: Â Dihybrid Cross Analysis |
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The phenomenon where a single gene exhibits multiple phenotypic expressions is called:
1. Co-dominance
2. Pleiotropy
3. Multiple alleles
4. Polygenic inheritance
1. Co-dominance
2. Pleiotropy
3. Multiple alleles
4. Polygenic inheritance
Subtopic: Â Polygenic Inheritance & Pleiotropy |
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