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TLS Online TPP Program

#Question id: 4947

The first genes on Earth were probably

#Unit 11. Evolution and Behavior

  1. DNA produced by reverse transcriptase from abiotically produced RNA.

  2. DNA molecules whose information was transcribed to RNA and later translated in polypeptides.

  3. auto-catalytic RNA molecules.

  4. RNA produced by autocatalytic, proteinaceous enzymes.

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TLS Online TPP Program

#Question id: 3292

#Unit 11. Evolution and Behavior

Which of the following is correct observation?
TLS Online TPP Program

#Question id: 6968

#Unit 5. Developmental Biology

In Xenopus, the mesoderm moves in through the blastopore by rolling around the dorsal lip in a process called:
TLS Online TPP Program

#Question id: 20026

#Unit 13. Methods in Biology

Which of the following technique is most sensitive, that can analyzed 2μg per ml of antigen?
TLS Online TPP Program

#Question id: 12693

#Unit 8. Inheritance Biology

A panel of cell lines was created by human-mouse cell line hybridization. Each line was examined for the presence of  human chromosome and for the gene production. The following result were obtained;
On the basis of these results, which chromosome has the gene  that encodes the enzyme ?
TLS Online TPP Program

#Question id: 10817

#Unit 10. Ecological Principles

Removal of a __________________ from a community affects community structure significantly.