21. The concentration of inoranic salts in the normal urine of human being is about
A. 0.15% B. 2.5% C. 15.0% D. 0.25% E. 1.5%
22. Which one of the following is not associated with the theory of ageing ? A. Wear and tear
B. Metabolic rate C. Epimorphosis D. Somatic mutations E. Neurohormonal changes
23. The morphogenetic movements change the hollow spherical blastula into a
A. Embryonic disc B. Gastrula C. Morula D. Neurula E. Celluation
24. The growth rate in childhood is controlled by
A. Progesterone B. Oestrogens
C. Testosterone D. Thymosine E. Thyroxine
25. Which of the following cations is required for the conversion of prothrombin into active thrombin by
thromboplastin? A. Ca2+ B. Fe2+
C. Fe3+ D. Cu2+ E. Mg2+
26. Ammonia produced during protein catabolism is converted to uric acid in the liver of
A. Ureotelic animals B. Ammonotelic animals
C. Uricotelic animals
D. Ornithinotelic animals E. Arginotelic animals
27. Red muscles are rich in A. Myoglobin and cytocrome B. Lactic acid andd acetic acid
C. Haemoglobin and glucose D. Only myosin E. Relaxin
28. One of the mendelian concepts states that in the F1 hybrid only one factor of a factor pair is expressed.
The factor not expressed is called
A. Dominant B. Recessive C. Unit character D. Unique factor E. Hidden factor
29. Emasculation is the removal of A. Stigma from the flower of the male parent B. Stamen from the
flower of the female parent C. Calix from the flower of the male parent
D. Calix from the flower of the female parent E. Corolla from the flower of the female parent
30. The backcross of F1 hybrid with the recessive parent is called A. Monohybrid cross B. Reciprocal
cross C. Testcross D. Punnet square cross
E. Dominent-recessive cross
31. The chromosome associated with sex detemination is known as A. Autosomes B. Accessory
chromosomes C. Super numenary chromosome D. Determinant chromosome E. Allosomes
32. The exchange of chromosome segments between non- homologous chromosomes is called
A. Translocation B. Deletion C. Transfer D. Frameshift E. Dislocation
33. In case of Hemophilia, if the carrier daughter (Hh) marries a normal man ‘H’ then among their daughters,
A. 50% will be normal(Hh) and 50% carrier (Hh) B. 50% will be normal (HH)and 50% hemophilic(h)
C. 50% carrier (Hh) and 50% hemophilic(h) D. 25% carrier (Hh)and 75% hemophilic(h)
E. 75% carrier(Hh) and 25% hemophilic(h)
34. Name the scientist who was awarded the Nobel Prize for his genetic studies on the linear arrangement of
genes on chromosome in the fruit fly, Drosophila melanogaster.
A. T H Morgan B. C F Wolff C. T A Knight D. J Swammerdam E. R C Punnet 35. In humans philadelphia chromosome results from the reciprocal translocations between chromosome
numbers A. 10 and20 B. 3 and 11 C. 9 and 21 D. 20 and 9 E. 9 and 22
36. Androgenic haploid plants were produced by anther culture first time by A. C. Auerbatchand L J Stadler
B. Sipra Guha and SC Maheswari C. W.Bateson D. C A Ninan E. W. Sutton andd T. Boveri
37. Which of following is an initiation codon ? A. UAA B. AUG C. UAG D. GUA E. AGU
38. RNA polymerase I catalyzes A. tRNA synthesis B. mRNA synthesis C. rRNAsynthesis
D. Elongation in transcription E. Initiation in transcription
39. Okazaki fragments are A. Short DNA fragments on the lagging strand
B. Short DNA fragments on the leading strand C.The RNA primers required for initiation of DNA synthesis
D. The DNA fragment produced due to radiation action E. The DNA fragment resulted from dimerization
40. A mixture of heat kild NL- cells (dead cells) and live L-cells is injected into mice. NL- type cells are
pathogenic, develop a desease and kill the animals. On the other hand L- type cells are non-pathogenic. The
expected result could be A. mice develop desease and die B. mice die without developing
desease C. mice do not develop desease and also do not die D. 50% mice develop desease and die E. All mice remain healthy but loose vision