Explain why the velocity of nerve impulse conduction in species B is more than species A?
| Species | Diameter µm | Velocity of conduction ms-1 |
| A | 500 | 33 |
| B | 20 | 100 |
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Compare the types of nitrogenous wastes observed in animals. Identify which compounds can be excreted with a minimum of water, which is most toxic and which waste product is found in fish, insects and mammals. Data regarding velocity of conduction and diameter of nerve fibre of two species A and B is given below. Which species is an invertebrate?
See Answer →What is the sliding filament model of movement of muscles? How does the sliding movement occur at molecular level?
See Answer →Glial Cells
See Answer →Pulse rate
See Answer →Cardiac output
See Answer →Action Potential
See Answer →Stroke volume
See Answer →Lytic and Iysogenic cycles
See Answer →Cell-mediated and humoral immunity
See Answer →Euchromatin and heterochromatin
See Answer →Structural and regulatory genes
See Answer →Somatic and gametic mutations
See Answer →Determine the order of genes along a chromosome based on the following
recombination frequencies:
A - B 8 map units
A - C 28 map units
A - D 25 map units
B - C 20 map units
B - D 33 map units
How many linkage groups would be revealed by an analysis of human genome?
Choose the correct answer amongst the choices given below:
i) 2
ii) 13
iii) 23
iv) 46
How linkage maps are constructed? What is their use in genetic studies?
See Answer →In peas, Tall (T) is dominant over dwarf (t), Yellow is dominant over green (y), and Smooth (S) is dominant over wrinkled (s). What fraction of the offspring in the following cross would be homozygous recessive for all gene pairs in the cross: YyTtss YyttSs?
See Answer →Describe any two modern methods for the improvement of crop plants
See Answer →Enlist the different types of lymphocytes. Mention their function, site of differentiation, and the type of immunity imparted by them
See Answer →Detail the molecular basis of mutations.
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