51. Factors affecting strength of linkage include
52. Early atmosphere contained methane and other hydrocarbons they have been now replaced by
53. Archaeopteryx, the connecting link between two groups of organisms, shows features of both
54. Which of the following evolved first on the primitive earth?
55. At present, scientists can determine the arragement or relative position of genes or DNA sequence on a chromosome. How does this knowledge benefit us?
1. It is possible to know the pedigree of livestock.
2. It is possible to understand the causes of all human diseases.
3. It is possible to develop disease resistant animal breeds.
Which of the statements given above is/are correct?
1. It is possible to know the pedigree of livestock.
2. It is possible to understand the causes of all human diseases.
3. It is possible to develop disease resistant animal breeds.
Which of the statements given above is/are correct?
56. All amino acids involved in protein synthesis have more than one codon except for
57. Linkage and crossing over are
58. The coding segment of DNA is called in
59. Consider the following statements.
1. Hugo de Vries gave the Mutation Theory to explain the mechanism of evolution.
2. Mutations are discontinuous variations and are also called Saltatory Variation.
3. Mutations are the ultimate source of organic variations.
Which of the statements given above is/are correct about mutation?
1. Hugo de Vries gave the Mutation Theory to explain the mechanism of evolution.
2. Mutations are discontinuous variations and are also called Saltatory Variation.
3. Mutations are the ultimate source of organic variations.
Which of the statements given above is/are correct about mutation?
60. The advantages of haploids in crop improvement include:
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