Please select a subject first
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Complete the flowchart of the process of conduction of nerve impulses.
| Application of stimulus on a resting nerve |
| ⇓ |
| Permeability of membrane changes |
| ⇓ |
| ______________________________ |
| ⇓ |
| Positive ions inside axon increases |
| ⇓ |
| ________________________________ |
| ⇓ |
| Polarity reverses and depolarisation takes place |
| ⇓ |
| Repolarisation - potassium gates open |
| ⇓ |
| ______________________________ |
| ⇓ |
| ______________________________ |
| ⇓ |
| Axoplasm becomes negatively charged and ECF becomes positive |
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Semiconservative mechanism of DNA was detected using:
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During DNA replication, the separated strands of DNA are prevented from recoiling by
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A DNA segment has 75 cytosine and 40 thymine nucleotides. What shall be the total number of phosphates in the DNA segment?
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Enlist the names of enzymes used in semiconservative replication of DNA?
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What is the function of SSBP?
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Define Heterochromatin.
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Dodo bird, stellar sea cow and passenger pigeon are few examples of extinction due to ______.
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With the help of any one example explain Alien species invasion as one of the causes of Biodiversity losses.
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Enlist any six categories into which a given species is placed once it has been thoroughly evaluated by IUCN.
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Draw neat and labelled diagram of Replication Fork.
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How Meselson and Stahl explained the concept of Semiconservative Replication of DNA experimentally?
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Describe the process of semiconservative replication of DNA with the help of a neat and labelled diagram.
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Transfer of a part of chromosome or set of genes to a non-homologous chromosome is called ________.
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Name any three types of premating isolating mechanisms.
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Name any three types of postmating isolating mechanisms.
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What is chromosomal aberration? Give any two types of aberrations found in the population.
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Which of the following is not a cause for loss of biodiversity?
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During the replication of DNA, the separated strands are prevented from recoiling by using ______.
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How many Biodiversity hotspots have been identified around the world?
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