Q1 of 26 Page 284

The occurrence of difference among the individuals of the same species is due to:

Variation refers to any difference between groups of organisms or among individuals of any species that is caused either genetically (genotypic variation) or by the effect of environmental factors on the expression of the individual (phenotypic variation).

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1

The continuity of features from one generation to another is known as:

 1

On which of the following plant species Mendel has worked:

 1

When Mendel crossed Tall plant with Dwarf plant what was the ratio of dwarf plants obtained in F2 generation

 1

In human being sex is determined by;