TLS Online TPP Program

#Question id: 4706


Which of the following statements best explains why modification or change in an organ or tissue during the lifetime of an individual is not inherited?

#Unit 11. Evolution and Behavior
  1. Characteristics acquired during an organism's life are generally not passed on through genes.

  2. Spontaneous mutations can result in the appearance of new traits.

  3. Only favorable adaptations have survival value.

  4. Disuse of an organ may lead to its eventual disappearance.

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TLS Online TPP Program

#Question id: 4652

#Unit 11. Evolution and Behavior

The graph depicts four possible patterns for the abundance of 3TC-resistant HIV within an infected human over time. If 3TC resistance is costly for HIV, then which plot (I—IV) best represents the response of a strain of 3TC-resistant HIV over time, if 3TC administration begins at the time indicated by the arrow?

TLS Online TPP Program

#Question id: 3636

#Unit 8. Inheritance Biology

A man with type A blood group marries a woman with type A blood group. Their first child has type O blood. What is the genotype of the Man, proportion of his gametes are expected to contain the IA allele, and probability that their next child will have type A blood respectively:

TLS Online TPP Program

#Question id: 26445

#Unit 3. Fundamental Processes

In transcription-coupled repair (TC-NER) TFIIH, itself a large complex, which includes the products of two XP genes, XPB and XPD, which of the following is correctly representing the function of XPB and XPD

TLS Online TPP Program

#Question id: 18911

#Unit 13. Methods in Biology

All vectors used for propagation of DNA inserts in a suitable host are called………….. But when a vector is designed for the expression of, i.e., production of the protein specified by, the DNA insert, it is termed as ………..

TLS Online TPP Program

#Question id: 4180

#Unit 3. Fundamental Processes

The anticodon of tRNAala can bind to three different codons for alanine (GCU, GCC and GCA) because