Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 2703
TLS Online TPP Program

#Question id: 2728

Which of the following does not describe retrotransposons?

#Unit 2. Cellular Organization

  1. A reverse transcriptase copies a RNA transcript into double stranded DNA

  2. They have terminal inverted repeats

  3. The enzyme transposase inserts the RNA transcript into a cell's genome

  4. They are similar to the genomes of retroviruses

More Questions
TLS Online TPP Program

#Question id: 5607

#Unit 5. Developmental Biology

Developmental changes that occur when different parts of an organism grow at different rates, phenomenon known as-
TLS Online TPP Program

#Question id: 5608

#Unit 5. Developmental Biology

Stereoblastulae -
TLS Online TPP Program

#Question id: 5609

#Unit 5. Developmental Biology

Just before sperm addition, sea urchin eggs are microinjected with a calcium chelator. What event will most likely not takes place after fertilization?
TLS Online TPP Program

#Question id: 5610

#Unit 5. Developmental Biology

The acrosome reaction involves the extension of the acrosomal Process:
TLS Online TPP Program

#Question id: 5611

#Unit 5. Developmental Biology

Which ion play an essential role in pollen tube growth?
TLS Online TPP Program

#Question id: 5612

#Unit 5. Developmental Biology

Outside the egg cell membrane is an extracellular matrix that forms a fibrous mat around the egg and is often involved in sperm-egg recognition. In invertebrates, this structure is usually called the: