Practice Questions

TLS Online TPP Program

#Question id: 11371

Which statement about gram-negative bacteria is correct?

#Unit 9. Diversity of Life Forms

Penicillins are the best antibiotics to use against them.
They often possess an outer membrane containing toxic lipopolysaccharides.
Their chromosomes are composed of DNA tightly wrapped around large amounts of histone proteins.
Their cell walls are primarily composed of peptidoglycan

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TLS Online TPP Program

#Question id: 32293

#Unit 1. Molecules and their Interaction Relevant to Biology

Identify the structure shown

TLS Online TPP Program

#Question id: 13552

#Unit 6. System Physiology – Plant

Transpiration from the leaf depends on two major factors;

TLS Online TPP Program

#Question id: 12730

#Unit 13. Methods in Biology

A single strand of ____ ribonucleotides forms four double stranded stem regions by pairing the bases.

TLS Online TPP Program

#Question id: 5024

#Unit 11. Evolution and Behavior

Which statement is most consistent with the hypothesis that the Cambrian explosion was caused by the rise of predator-prey relationships?

TLS Online TPP Program

#Question id: 31299

#Unit 5. Developmental Biology

In chick embryo, the space between the blastoderm and the yolk is called as: