Q13 of 47 Page 73

Select the correct statement

Homologous organs are those organs that have same basic structural design but have different appearance and functions. Tendril of a pea plant and phylloclade of opuntia are homologous organs because they are modified stems but serve different functions in different plants.

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11

Two pea plants one with round green seeds (RRyy) and another with wrinkled yellow (rrYY) seeds produce F1 progeny that have round, yellow (RrYy) seeds. When F1 plants are selfed, the F2 progeny will have new combination of characters. Choose the new combination from the following

i. Round, yellow


ii. Round, green


iii. Wrinkled, yellow


iv. Wrinkled, green

 12

A basket of vegetables contains carrot, potato, radish and tomato. Which of them represent the correct homologous structures?

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If the fossil of an organism is found in the deeper layers of earth, then we can predict that

 15

Which of the following statements is not true with respect to variation?