Action Potential

Stroke volume

Lytic and Iysogenic cycles

Cell-mediated and humoral immunity

Euchromatin and heterochromatin

Structural and regulatory genes

Somatic and gametic mutations

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?

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?

Describe any two modern methods for the improvement of crop plants

Enlist the different types of lymphocytes. Mention their function, site of differentiation, and the type of immunity imparted by them

Detail the molecular basis of mutations.

In a randomly mating laboratory population of Drosophila, 4 per cent of the flies have black bodies (black is autosomal recessive, b) and 96 per cent have brown bodies (normal colour, B). If this population is assumed to be in Hardy-Weinberg equilibrium, what are the allelic frequencies of B and b, and the genotypic frequencies of BB and Bb?

Does the operon concept apply to eukaryotes? Describe a suggested mechanism for gene regulation in eukaryotes.

Detail the Watson and Crick model of DNA structure. How did it fit in the data provided by Chargaff?

Describe with appropriate examples the role of environment in the determination of sex

Give an example that illustrates each of the following:
a) Primary succession
b) Secondary succession
c) Progressive succession
d) Retrogressive succession

Describe the human impact on nitrogen cycle and sulfur cycle.