Topoisomerases play the essential role of unlinking the DNA molecules to allow them to separate into the two daughter cells for cell division. Which of the following statements regarding the mechanism of topoisomerases is INCORRECT?

TLS Online TPP Program

#Question id: 8913

#Unit 9. Diversity of Life Forms

The larvae of some insects are merely small versions of the adult, whereas the larvae of other insects look completely different from adults, eat different foods, and may live in different habitats. Which of the following most directly favors the evolution of the latter, more radical, kind of metamorphosis?

TLS Online TPP Program

#Question id: 8914

#Unit 9. Diversity of Life Forms

Which of the following is (are) unique to animals?

TLS Online TPP Program

#Question id: 8915

#Unit 9. Diversity of Life Forms

The number of legs an insect has, the number of vertebrae in a vertebral column, or the number of joints in a digit (such as a finger) are all strongly influenced by

TLS Online TPP Program

#Question id: 8916

#Unit 9. Diversity of Life Forms

What do animals as diverse as corals and monkeys have in common?

TLS Online TPP Program

#Question id: 8917

#Unit 9. Diversity of Life Forms

The Hox genes came to regulate each of the following in what sequence, from earliest to most recent?

1. identity and position of paired appendages in protostome embryos

2. formation of water channels in sponges

3. anterior-posterior orientation of segments in protostome embryos

4. positioning of tentacles in cnidarians

5. anterior-posterior orientation in vertebrate embryos

TLS Online TPP Program

#Question id: 8918

#Unit 9. Diversity of Life Forms

In individual insects of some species, whole chromosomes that carry larval genes are eliminated from the genomes of somatic cells at the time of metamorphosis. A consequence of this occurrence is that