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TLS Online TPP Program

#Question id: 23124

Which of the following statement is true regarding introns.

#Unit 2. Cellular Organization
  1. Introns evolve or accumulate mutations/changes slower than exons
  2. Introns evolve or accumulate mutations/changes equal rate to exons
  3. Introns evolve or accumulate mutations/changes shows no change in exons
  4. Introns evolve or accumulate mutations/changes much more rapidly than exons
More Questions
TLS Online TPP Program

#Question id: 4557

#Unit 3. Fundamental Processes

In eukaryotic transcription RNA polymerase II is transcribed
TLS Online TPP Program

#Question id: 9252

#Unit 9. Diversity of Life Forms

Which of these environmental factor(s) is/are the key determining factor(s) that control(s) the biotic structure of aquatic biomes?
TLS Online TPP Program

#Question id: 10859

#Unit 10. Ecological Principles

Plants that depend upon ants to spread their seeds
TLS Online TPP Program

#Question id: 5671

#Unit 5. Developmental Biology

Match the following mechanism of polyspermy (Column I) with events (Column II).

 Column I

 Column II

A. Fast block to polyspermy

i. chemicals from the fusing sperm cytoplasm alter the sodium ion (Na+) channels on the membrane

B. Slow block to polyspermy

ii. enzyme cortical granule serine

protease, cleaves the protein posts that connect the vitelline envelope

iii the concentration of free Ca2+ in the egg cytoplasm increases

iv. an electric change in the egg cell membrane

v. the concentration of free Na+ in the egg cytoplasm increases

Which of the following is correct?
TLS Online TPP Program

#Question id: 12158

#Unit 9. Diversity of Life Forms

Which of the following is correctly described as a primary producer?