TLS Online TPP Program

#Question id: 5525


"ontogeny recapitulates phylogeny" means

#Unit 5. Developmental Biology
  1. Embryonic stages of an animal resemble adult ancestors

  2. Adults of an animal resemble embryonic stages of its ancestors

  3. Adult animals resemble adult ancestors

  4. Embryonic stages of an animal resemble embryonic stages of its ancestors

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TLS Online TPP Program

#Question id: 5304

#Unit 11. Evolution and Behavior

Bioinformatics includes ________.

I. using computer programs to align DNA sequences

II. creating recombinant DNA from separate species

III. developing computer-based tools for genome analysis

IV. using mathematical tools to make sense of biological systems

TLS Online TPP Program

#Question id: 6947

#Unit 5. Developmental Biology

What is the correct dorso-ventral arrangement seen in a cross-section of Drosophila embryo?

TLS Online TPP Program

#Question id: 4698

#Unit 11. Evolution and Behavior

It has been observed that organisms on islands are different from, but closely related to, similar forms found on the nearest continent. This is taken as evidence that

TLS Online TPP Program

#Question id: 21140

#Unit 12. Applied Biology

In nutrition limitation condition, the bacterial growth curve reaches onto the Idiophase. In this phase which mechanism is responsible for enhancing the secondary metabolite production?

TLS Online TPP Program

#Question id: 15780

#Unit 5. Developmental Biology

In drosophila, the somatic cells of the hub are able to regulate stem cell proliferation by secreting the paracrine factor Unpaired onto the cells attached to them. Unpaired activates the JAK-STAT pathway in the adjacent germ stem cells to specify their self-renewal. Those cells that are distant from the paracrine factor cannot receive this signal, they begin their differentiation into the sperm cell lineage. This means hub cells act as