Question

25 multiple choice 2 points information concerning down syndrome is represented in the accompanying graph. a correct inference that can be made from this graph is that with increasing maternal age there is a corresponding increase in the incidence of hybridization polyploidy nondisjunction recombination

Explanation:

Down - syndrome is caused by the presence of an extra copy of chromosome 21, which is due to nondisjunction during meiosis. The graph shows an increase in Down - syndrome cases with increasing maternal age, which is related to the higher likelihood of nondisjunction as women age. Hybridization, polyploidy, and recombination are not directly related to the increased incidence of Down - syndrome with maternal age shown in the graph.

Answer:

C. nondisjunction