TLS Online TPP Program

#Question id: 3572


How might the ability of pea plants to self fertilize be a problem for genetic experiments?

#Unit 8. Inheritance Biology
  1. Self fertile plants tend to be weaker and require more care.

  2. Self fertile plants are not able to produce viable seeds due to inbreeding.

  3. Stamens must be removed from self fertile plants to control fertilization.

  4. Pistils of self fertile plants are unable to accept pollen from other plants.

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TLS Online TPP Program

#Question id: 2840

#Unit 2. Cellular Organization

An experimental setup provided the assay for identifying factors that facilitate transcription in the presence of chromatin. A factor called FACT (facilitates chromatin transcription) functions as 

TLS Online TPP Program

#Question id: 19030

#Unit 9. Diversity of Life Forms

Of the following list, flagellated (swimming) sperm are generally present in which groups? 
1. Lycophyta                 2. Bryophyta 
3. Angiosperms 4. Chlorophyta 
5. Pterophyta 

TLS Online TPP Program

#Question id: 868

#Unit 1. Molecules and their Interaction Relevant to Biology

Which statements is incorrect about ‘The chaperonin-assisted catalysis of protein folding’

A. The non-cooperative nature of ATP binding establishes GroEL as an allosteric enzyme.

B. In GroEL with a total of 14 subunits in two heptameric rings are observed.

C. In vivo GroES is composed of seven identical subunits whilst GroEL is composed of 14 larger subunits.

D. Gro-EL being called chaperonin60 (cpn60) and Gro-ES chaperonin10 (cpn10).

TLS Online TPP Program

#Question id: 2355

#Unit 2. Cellular Organization

Normally, body fluids are ______ to cells.

TLS Online TPP Program

#Question id: 641

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following does NOT describe a mechanism that cells use to regulate enzyme activities?

A. Cells control enzyme activity by phosphorylation and dephosphorylation.

B. Cells control enzyme activity by the binding of small molecules.

C. Cells control the rates of diffusion of substrates to enzymes.

D. Cells control the rates of enzyme degradation.

E. Cells control the rates of enzyme synthesis.

F. Cells control the targeting of enzymes to specific organelles.