81. According to Wilson and Stevens (1902-1905), the X and Y chromosomes are named as
82. When new plants are introduced into a locality with different climate then, their adjustment with the changed climate is known as
83. The first life on the earth was developed through
84. Transfer of genetic information from one generation to the next generation is by
85. Mendel selected pea plant for his experiment because
86. The complex organic compounds that may have first evolved in the direction of origin of life on earth may have been
87. The conclusions of de Vries from his experiments with Oenothera lamarckiana include:
88. According to Stadler, the genes from different strains are not exactly alike, because they result in distributions of the pigment which are known as
89. Consider the following statements regarding the embryological evidences from Acacia moniteformis for evolution and choose the correct answer:
1. The petiole is modified into a leaf like structure called phyllode
2. In the seedling stage the plant possesses true compound leaves but with the advance of age the phyllodes make their appearance in place of the leaves
3. The true leaves are present
4. Fertilization takes place inside the ovule
1. The petiole is modified into a leaf like structure called phyllode
2. In the seedling stage the plant possesses true compound leaves but with the advance of age the phyllodes make their appearance in place of the leaves
3. The true leaves are present
4. Fertilization takes place inside the ovule
90. According to Neo-Darwinism, in a population, the relative frequencies of the genes will remain constant from one generation to the next if
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