Practice Questions

TLS Online TPP Program

#Question id: 11499

Biologists have long been aware that the defunct kingdom Protista is paraphyletic. Which of these statements is both true and consistent with this conclusion?

#XL - T Zoology

Many species within this kingdom were once classified as monerans.
Animals, plants, and fungi arose from different protist ancestors.
The eukaryotic condition has evolved only once among the protists, and all eukaryotes are descendants of that first eukaryotic cell.
Some protists, all animals, and all fungi share a protist common ancestor, but these protists, animals, and fungi are currently assigned to three different kingdoms.

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TLS Online TPP Program

#Question id: 27366

#XL - T Zoology

If the siRNA is a complete homolog of the target mRNA sequences what is the net result?

TLS Online TPP Program

#Question id: 32938

#XL - S Microbiology

Match the following:

TLS Online TPP Program

#Question id: 8705

#XL - S Microbiology

If you were using cladistics to build a phylogenetic tree of cats, which of the following would be the best outgroup?

TLS Online TPP Program

#Question id: 2104

#XL - S Microbiology

Peripheral membrane proteins:

TLS Online TPP Program

#Question id: 20136

#XL - P Chemistry

Ka for CH3COOH at 25ºC is 1.754 × 10^–5. At 50ºC, Ka is 1.633 × 10^–5 What will be value of Δ Sº for the ionisation of CH3COOH?