Principle of Genetics,Core 12 Bsc 5th sem zology honours ,Dibrugarh University CBCS

 

zollogy  Question Paper

1.Fill in the blanks with approapriate words.         

(a) The  number of linkage group in human male  is …..

(b) The sequence of DNA coding for a functional protein is called………..

(c) The genotype ratio in F1  generation of monohybrid cross is…….

(d)…………..is an example of sex link inheritance.

(e)Abnormality in the structure of  chromosomal is known as chromosomal……………..

 

2.(a) Write briefly on any two of the following :

(i) Lethal alleles

(ii) Pleiotropy

(iii) Polygenetic  inheritance.

(b) Distinguish  between any two   of the following :

(i) Transformation and Transduction.

(ii) Compleate linkage and incompleate linkage .

(iii) Recombination and Hybridization.

 

3. Define incompleate dominance and codominance .Explain each with suitable example.

                                                                 Or

Write  explanmatory  note on crossing over. Describe how crossing over can be used to measure the relative distance between  genes in a chromosome.

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