Given below is the diagram of a bacteriophage. In which one of the options, all the four parts A, B, C and D are correct?

 

A B C D
1. Sheath Collar Head Tail fibres
2. Head Sheath Collar Tail fibres
3. Collar Tail fibres Head Sheath
4. Tail fibres Head Sheath Collar
Subtopic:  Virus, Viroids & Prions |
 95%
Level 1: 80%+
AIPMT - 2010
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Examine the figures A, B, C and D. In which one of the four options all the items, A, B, C and D are correct?

Options : 

A B C D
1. Equisetum Ginkgo Selaginella Lycopodium
2. Selaginella Equisetum Salvinia Ginkgo
3. Funaria Adiantum Salvinia Riccia
4. Chara Marchantia Fucus Pinus
Subtopic:  Pteridophytes | Gymnosperms |
 92%
Level 1: 80%+
AIPMT - 2010
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In eukaryotic cell transcription, RNA splicing and RNA capping take place inside the:

1. Nucleus

2. Dictyosomes

3. ER

4. Ribosomes

Subtopic:  Transcription |
 88%
Level 1: 80%+
AIPMT - 2010
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The figure given below shows the conversions of a substrate into product by an enzyme. In which one of the four options (1-4), the components of the reaction labelled as A, B, C and D are identified correctly:

 Options

 A B C D
1. Transition
state
Potential
energy
Activation
energy
without
enzyme
Activation
energy with
enzyme
2. Potential
energy
Transition
state
Activation
energy with
enzyme
Activation
energy
without
enzyme
3. Activation
energy with
enzyme
Transition
state
Activation
energy
without
enzyme
Potential
energy
4. Potential
energy
Transition
state
Activation
energy
without
enzyme
Activation
energy with
enzyme
Subtopic:  Enzyme Catalysis |
 85%
Level 1: 80%+
AIPMT - 2010
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An elaborate network of filamentous proteinaceous structures present in the cytoplasm which helps in the maintenance of cell shape is called:
1. Endoplasmic Reticulum
2. Plasmalemma
3. Cytoskeleton
4. Thylakoid

Subtopic:  Cytoskeleton |
 89%
Level 1: 80%+
AIPMT - 2010
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In antirrhinum, two plants with pink flowers were hybridized. The F1 plants produced red, pink, and white flowers in the proportion of 1 red, 2 pink and 1 white. What could be the genotype of the two plants used for hybridization? Red flower colour is determined by RR, and White by rr genes.

1. RR 2. Rr
3. rr 4. rrrr

Subtopic:  Dominance Deviation from Mendel: 1 |
 94%
Level 1: 80%+
AIPMT - 2010
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The lac Operon consists of:

1. One regulatory gene and three structural genes
2. Two regulatory genes and two structural genes
3. Three regulatory genes and three structure genes
4. Four regulatory genes only
Subtopic:  Gene Regulation: Lac Operon |
 88%
Level 1: 80%+
AIPMT - 2010
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A cross in which an organism showing a dominant phenotype in crossed with the recessive parent in order to know its genotype is called:

1. Back cross

2. Test cross

3. Dihybrid cross

4. Monohybrid cross

Subtopic:  Monohybrid Cross: Further Understanding |
 92%
Level 1: 80%+
AIPMT - 2010
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Transport of food material in higher plants takes place through:
1. Transfusion tissue
2. Tracheids
3. Sieve elements
4. Companion cells

Subtopic:  Complex Tissue: Phloem |
 63%
Level 2: 60%+
AIPMT - 2010
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Kranz anatomy is one of the characteristics of the leaves of:

1. Wheat

2. Sugarcane

3. Mustard

4. Potato

Subtopic:  C4 Cycle (Hatch & Slack Pathway) |
 78%
Level 2: 60%+
AIPMT - 2010
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