A three point test cross was carried out in Drosophila melanogaster involving three adjacent genes A, B and C. arranged in the same order. The distance between A to B is 15 map unit (mu) and that between B to C is 30 map. The coefficient of coincidence = 0.67. What is the percentage of double recombinants in the progeny obtained from the testcross?

TLS Online TPP Program

#Question id: 8968

#Unit 9. Evolution & Diversity of Life Forms

Which of the following statements concerning animal taxonomy is (are) true?

1. Animals are more closely related to plants than to fungi.

2. All animal clades based on body plan have been found to be incorrect.

3. Kingdom Animalia is monophyletic.

4. Only animals reproduce by sexual means.

5. Animals are thought to have evolved from flagellated protists similar to modern choanoflagellates.

TLS Online TPP Program

#Question id: 8969

#Unit 9. Evolution & Diversity of Life Forms

Among the characteristics unique to animals is

TLS Online TPP Program

#Question id: 8970

#Unit 9. Evolution & Diversity of Life Forms

Acoelomates are characterized by

TLS Online TPP Program

#Question id: 11227

#Unit 9. Evolution & Diversity of Life Forms

Mycoplasmas are bacteria that lack cell walls. Based on this structural feature, which statement concerning mycoplasmas should be true.

TLS Online TPP Program

#Question id: 11228

#Unit 9. Evolution & Diversity of Life Forms

Though plants, fungi, and prokaryotes all have cell walls, we place them in different taxa. Which of these observations comes closest to explaining the basis for placing these organisms in different taxa, well before relevant data from molecular systematics became available?

TLS Online TPP Program

#Question id: 11229

#Unit 9. Evolution & Diversity of Life Forms

Which is the bacterial structure that acts as a selective barrier, allowing nutrients to enter the cell and wastes to leave the cell.