TLS Online TPP Program

#Question id: 749


Which of the following is correct for the A form of DNA structures?

#Part-A Aptitude & General Biotechnology
  1. a wider than B form.

  2. more compressed structure in which the base pairs are tilted with respect to the helix axis, and actually lie off the axis.

  3. The helical repeat of the A-form is around 11 bp/turn

  4. All of the above are correct.

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TLS Online TPP Program

#Question id: 8922

#Part-A Aptitude & General Biotechnology

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: 8922

#Part-B Specialized Branches in Biotechnology

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: 8923

#Part-A Aptitude & General Biotechnology

Which of these genetic processes may be most helpful in accounting for the Cambrian explosion?

TLS Online TPP Program

#Question id: 8923

#Part-B Specialized Branches in Biotechnology

Which of these genetic processes may be most helpful in accounting for the Cambrian explosion?

TLS Online TPP Program

#Question id: 8924

#Part-A Aptitude & General Biotechnology

Fossil evidence indicates that the following events occurred in what sequence, from earliest to most recent?
1. Protostomes invade terrestrial environments.
2. Cambrian explosion occurs.
3. Deuterostomes invade terrestrial environments.
4. Vertebrates become top predators in the seas.

TLS Online TPP Program

#Question id: 8924

#Part-B Specialized Branches in Biotechnology

Fossil evidence indicates that the following events occurred in what sequence, from earliest to most recent?
1. Protostomes invade terrestrial environments.
2. Cambrian explosion occurs.
3. Deuterostomes invade terrestrial environments.
4. Vertebrates become top predators in the seas.