Practice Questions

TLS Online TPP Program

#Question id: 8927

Arthropods invaded land about 100 million years before vertebrates did so. This most clearly implies that

#SCPH06 I Botany

arthropods have had more time to co-evolve with land plants than have vertebrates.
extant terrestrial arthropods are better adapted to terrestrial life than are extant terrestrial vertebrates.
ancestral arthropods must have been poorly adapted to aquatic life, thus experienced a selective pressure to invade land.
vertebrates evolved from arthropods.

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TLS Online TPP Program

#Question id: 2689

#SCPH05 I Biotechnology

Which of these factors contribute to a decrease in gene density?

TLS Online TPP Program

#Question id: 17274

#SCPH01 Biochemistry

which of the following statement is incorrect about PSI-BLAST?

TLS Online TPP Program

#Question id: 1543

#SCPH06 I Botany

Effector cytokines of TH 1 cells?

TLS Online TPP Program

#Question id: 814

#SCPH05 I Biotechnology

Which of the following uncommon amino acids are not found in the proteins?

TLS Online TPP Program

#Question id: 263

#SCPH12 I Genetics

Which does not apply to most bacterial DNA?