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TLS Online TPP Program

#Question id: 2066

Which of the following statements describes a characteristic feature of a carrier protein in a plasma membrane?

#Unit 2. Cellular Organization

  1. It exhibits specificity for a particular type of molecule.

  2. It requires the expenditure of cellular energy to function.

  3. It works against diffusion.

  4. It has no hydrophobic regions.

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TLS Online TPP Program

#Question id: 8934

#Unit 9. Diversity of Life Forms

At which developmental stage should one be able to first distinguish a protostome embryo from a deuterostome embryo?
TLS Online TPP Program

#Question id: 21243

#Unit 7. System Physiology – Animal

A 62-year-old Caucasian woman experienced a rapid onset of blurry vision along with loss of central vision. A comprehensive eye exam showed that she had wet age-related macular degeneration. The fovea of the eye
TLS Online TPP Program

#Question id: 5840

#Unit 8. Inheritance Biology

The sequence of proteins used in bacterial recombination is
TLS Online TPP Program

#Question id: 3644

#Unit 3. Fundamental Processes

In replication: soon after synthesis, the DNA fragments are joined to make one continuous piece of DNA by the enzyme:
TLS Online TPP Program

#Question id: 769

#Unit 1. Molecules and their Interaction Relevant to Biology

MicroRNAs are developed from: