The experimental proof for semiconservative replication of DNA was first shown in a

1. Fungus

2. Bacterium

3. Plant

4. Virus

Subtopic:  DNA Replication: I | DNA Replication |
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Select the correct statement:

1. Franklin Stahl coined the term "linkage".
2. Punnett square was developed by a British scientist.
3. Spliceosomes take part in translation.
4. Transduction was discovered by S. Altman.

Subtopic:  Law of Segregation |
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Offsets are produced by

1. Meiotic divisions
2. Mitotic divisions
3. Parthenocarpy
4. Parthenogenesis

Subtopic:  Asexual Reproduction |
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Which of the following pairs is wrongly matched?

1. Starch synthesis in pea: Multiple alleles
2. ABO blood grouping: Co-dominance
3. XO type sex determination: Grasshopper
4. T.H Morgan: Linkage

Subtopic:  Dominance Deviation from Mendel: 1 |
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Which of the following flowers only once in its life-time?
1. Bamboo species
2. Jackfruit
3. Mango
4. Papaya

 

Subtopic:  Sexual Reproduction |
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Select the correct match:

1. Alec Jeffreys – Streptococcus pneumoniae

2. Alfred Hershey and Martha Chase – TMV

3. Matthew Meselson and F. Stahl – Pisum sativum 

4. Francois Jacob and Jacques Monod – Lac operon 

Subtopic:  Gene Regulation: Lac Operon |
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Which of the following has proved helpful in preserving pollens as fossils?

1. Pollenkit

2. Cellulosic intine

3. Oil content

4. Sporopollenin

Subtopic:  Stamen: Microsporangium |
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Stomatal movement is not affected by

1. Temperature
2. Light
3. O2 concentration
4. CO2 concentration

Subtopic:  Stomata: 2 |
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The stage during which separation of the paired homologous chromosomes begins is

1. Pachytene
2. Diplotene
3. Diakinesis
4. Zygotene

Subtopic:  Cell Cycle: Meiosis I |
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The two functional groups characteristic of sugars are
1. Hydroxyl and methyl
2. Carbonyl and methyl
3. Carbonyl and phosphate
4. Carbonyl and hydroxyl
Subtopic:  Carbohydrates: Introduction |
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