41. A cross between heterozygous F1 hybrid and the double recessive homozygous is known as
42. Who among the following synthesized sulphobes from ammonium thiocyanate and formalin and also reported the formation of two amino acids and a condensation product plus pigments?
43. Trisomy stands for
44. The number of DNA molecules per chromatids are
45. Recently, who among the following succeeded in synthesising a nucleic acid molecule of six nucleotide units?
46. Big-Bang theory attempts to explain the origin of
47. Match List-I with List-II and select the correct answer:
List-I
List-II
a. Monohybrid cross
1. Involves the study of inheritance of two pairs of contrasting characters
b. Dihybrid cross
2. Involves two crosses concerning the same character but with reversed sexes
c. Polyhybrid cross
3. Involves the study of inheritance of one pair of contrasting characters
d. Reciprocal cross
4. Includes those crosses in which inheritance of more than two pairs of genes is concerned
| List-I | List-II |
| a. Monohybrid cross | 1. Involves the study of inheritance of two pairs of contrasting characters |
| b. Dihybrid cross | 2. Involves two crosses concerning the same character but with reversed sexes |
| c. Polyhybrid cross | 3. Involves the study of inheritance of one pair of contrasting characters |
| d. Reciprocal cross | 4. Includes those crosses in which inheritance of more than two pairs of genes is concerned |
48. Which of the following suggests that at every level from the molecule through the supramolecular organelle, the cell, the tissue, the organism, the individualand upto the population or the society, the properties of life depend only to a small degree upon the substances of which living matter is composed?
49. With reference to the evolution of living organism, which one of the following sequence is correct?
50. Neo-Darwinians believed that characters are not inherited as such but there are character determiners which control only the development called
Read More Section(Gentics and Evoloution)
Each Section contains maximum 100 MCQs question on Gentics and Evoloution. To get more questions visit other sections.