The two versions of a trait (character) which are brought in by the male and female gametes are situated on

According to the evolutionary theory, formation of a new species is generally due to

From the list given below, select the character which can be acquired but not inherited

Select the statements that describe characteristics of genes

i. genes are specific sequence of bases in a DNA molecule

ii. a gene does not code for proteins

iii. in individuals of a given species, a specific gene is located on a particular chromosome

iv. each chromosome has only one gene

In peas, a pure tall plant (TT) is crossed with a short plant (tt). The ratio of pure tall plants to short plants in F2 is