Yeast artificial chromosomes contain which of the following elements?

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#Question id: 19291

#Unit 9. Diversity of Life Forms

Reptilian embryos are protected from desiccation by a leathery shell. Similarly, which pair of structures protects seed plantsʹ embryos and male gametophytes, respectively, from desiccation? 

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#Question id: 19292

#Unit 9. Diversity of Life Forms

Pollen tube is a part of___

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#Question id: 24539

#Unit 9. Diversity of Life Forms

All the animals with vertebrae form a single phylogenetic branch of species that share a common ancestor, concluded by

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#Question id: 24540

#Unit 9. Diversity of Life Forms

Phylogenetic tree construction among species on the basis of

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#Question id: 24541

#Unit 9. Diversity of Life Forms

Phylogenetic trees represent hypothesis about the evolutionary relationships among a group of organisms, these relationship based on which character?

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#Question id: 24542

#Unit 9. Diversity of Life Forms

In the tree below, the given character state A and B represent for one character. What show the character state A?

a.  Synapomorphy 

b. Plesiomorphy

c. Synplesiomorphy

d. Apomorphy