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TLS Online TPP Program

#Question id: 35924

Which of the following statements is/are correct ? 

#XL - S Microbiology
  1. In lysogens λ repressor have structural similar with LexA.
  2. Cleavage removes its C-terminal domain, preventing dimerization and cooperativity, so it dissociates from operator sites.
  3. This lift of repression at PR and PL level and initiate lytic cycle.
  4. RecA is responsible for repressor degradation.
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TLS Online TPP Program

#Question id: 11640

#XL - S Microbiology

Which of the following is not characteristic of ciliates?
TLS Online TPP Program

#Question id: 11643

#XL - T Zoology

Rapid changes to skin color in many vertebrates is under the control of ________.
TLS Online TPP Program

#Question id: 11644

#XL - T Zoology

Seven days after ovulation, pituitary secretion of luteinizing hormone (LH) decreases rapidly. What is the cause of this decrease in secretion?
TLS Online TPP Program

#Question id: 11645

#XL - T Zoology

Which of the following is inconsistent with the diagnosis of Graves’ disease?
TLS Online TPP Program

#Question id: 11646

#XL - T Zoology

Which of the following statements about antidiuretic hormone is true?
TLS Online TPP Program

#Question id: 11647

#XL - T Zoology

After menopause, hormone replacement therapy with estrogen-like compounds is effective in preventing the progression of osteoporosis. What is the mechanism of their protective effect?