Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 49805
TLS Online TPP Program

#Question id: 5034

Which of these statements about human evolution is correct?

#SCPH28 | Zoology

  1. The ancestors of Homo sapiens were chimpanzees.

  2. Human evolution has proceeded in an orderly fashion from an ancestral anthropoid to Homo sapiens.

  3. The evolution of upright posture and enlarged brain occurred simultaneously.

  4. Different species of the genus Homo have coexisted at various times throughout hominin evolution.

More Questions
TLS Online TPP Program

#Question id: 3454

#SCPH06 I Botany

Altruism is favoured when rb - c > 0 where c is fitness cost to altruist, b is fitness benefit to recipient; and r is genetic relatedness. It is under negative selection when
TLS Online TPP Program

#Question id: 1683

#SCPH01 Biochemistry

Expression of MHC genes is:
TLS Online TPP Program

#Question id: 1389

#SCPH05 I Biotechnology

 Why has C. elegans proven to be a useful model for understanding apoptosis?
TLS Online TPP Program

#Question id: 2636

#SCPH05 I Biotechnology

Which of the following events occur when E. coli is starved for tryptophan?

I.  The ribosome translates leader peptide completely

II. Transcription reads through attenuator into trp EDCBA

III. Tryptophanyl tRNA is not formed

IV. A stem loop structure involving regions 3 and 4 is formed at attenuator site
TLS Online TPP Program

#Question id: 2104

#SCPH01 Biochemistry

Peripheral membrane proteins: