TLS Online TPP Program

#Question id: 4724


Which of the following are true about crossing over ?

#Unit 8. Inheritance Biology
  1. crossing over lead to homologous chromosome become identical

  2. crossing over lead to non-sister chromosome become identical

  3. crossing over lead to sister chromosome become identical

  4. crossing over lead to sister chromosome become non-identical

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TLS Online TPP Program

#Question id: 8894

#Unit 9. Diversity of Life Forms

Which of the following is a shared characteristic of all chordates?

TLS Online TPP Program

#Question id: 7267

#Unit 5. Developmental Biology

Endocrine disruptors can interfere with hormone function in many ways like, They can act as antagonists and inhibit the binding of a hormone to its receptor or block the synthesis of a hormone. which of the following example best explains the antagonistic effect of endocrine disruptors?

TLS Online TPP Program

#Question id: 5691

#Unit 8. Inheritance Biology

Which of the following most accurately explains the cause for the abnormal numbers of chromosomes during human reproduction that can result in Down syndrome, Turner’s syndrome, or Klinefelter’s syndrome?

TLS Online TPP Program

#Question id: 729

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following is correct about the collagen triple-helix domain

a. is rich in glycine.                             b. is rich in proline.

c. is rich in hydroxyproline.                d. is an alpha helix.

TLS Online TPP Program

#Question id: 3501

#Unit 11. Evolution and Behavior

following graph related with mate choice  during natural selection ? Which of the following correct?

a. male investment exceed  that of female

b. female investment exceed  that of male

c. Reproductive investment by the sexes is strongly influenced by differences in the degree of parental investment

d.leads to male mate choice

e. overall increase fitness

f.female mate choice