Fission yeast cells carrying a CDK1 mutation in which the tyrosine-15 residue is replaced by phenylalanine, what will be the result?

a) Shows larger than normal cells

b) Shows smaller than normal cells

c) allows the phosphorylation of phenylalanine and normal cell proliferation are seen

d) premature mitotic CDK activation and entry into mitosis

#Question id: 7697

#Unit 9. Diversity of Life Forms

The following question refers to the following phylogenetic trees. Which tree depicts the closest relationship between zygomycetes and chytrids?

#Question id: 7698

#Unit 9. Diversity of Life Forms

Which tree shows the greatest evolutionary distance between chytrids and ascomycetes?

#Question id: 7699

#Unit 9. Diversity of Life Forms

In the phylogenetic trees, numbers represent species, and the same species are shown in both trees. Which two species are represented as sister species in Tree 2 but are not shown as sister species in Tree 1?

#Question id: 7700

#Unit 9. Diversity of Life Forms

The legless condition that is observed in several groups of extant reptiles is the result of ________.

#Question id: 7701

#Unit 9. Diversity of Life Forms

The various taxonomic levels (for example, phyla, genera, classes) of the hierarchical classification system differ from each other on the basis of ________

#Question id: 7702

#Unit 9. Diversity of Life Forms

If organisms A, B, and C belong to the same class but to different orders and if organisms C, D, and E belong to the same order but to different families, which of the following pairs of organisms would be expected to show the greatest degree of structural homology?