Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 48336
TLS Online TPP Program

#Question id: 6978

Removal of the apical ridge leads to

#SCPH28 | Zoology
  1. regeneration of the entire limb bud from underlying mesoderm
  2. formation of structures proximal to the apical ridge, but no formation of new distal structures
  3. regeneration of a new apical ridge from adjacent epidermal tissue
  4. continued development in the progress zone, once the apical ridge has induced progress zone formation
More Questions
TLS Online TPP Program

#Question id: 14803

#I Life Science/ Life Sciences Group – I-V

The percentage SIMILARITIES and IDENTITIES, respectively, between the two peptide sequences given below will be ______% and _____%.

Peptide I :
Ala-Ala-Arg-Arg-Gln-Trp-Leu-Thr-Phe-Thr-Lys-Ile-Met-Ser-Glu

Peptide II:
Ala-Ala-Arg-Glu-Gln-Tyr-Ile-Ser-Phe-Thr-Lys-Ile-Met-Arg-Asp
TLS Online TPP Program

#Question id: 4337

#SCPH01 Biochemistry

Which of the following conditions is most likely to cause the lactose operon to be transcribed?
TLS Online TPP Program

#Question id: 14804

#SCPH05 I Biotechnology

Calculate the percentage sequence identity for the pairwise alignment given below: 
                       H E L L O _
                       Y E L L O W
TLS Online TPP Program

#Question id: 562

#I Life Science/ Life Sciences Group – I-V

Phenyl-methane-sulfonyl-fluoride (PMSF) inactivates serine proteases by binding covalently to the catalytic serine residue at the active site; this enzyme-inhibitor bond is not cleaved by the enzyme.  This is an example of what kind of inhibition?
TLS Online TPP Program

#Question id: 3666

#SCPH05 I Biotechnology

RNA-directed RNA polymerase, used in replication of some RNA viruses termed as: