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TLS Online TPP Program

#Question id: 8848

A carbon skeleton is covalently bonded to both an amino group and a carboxyl group. When placed in water it

#Unit 9. Diversity of Life Forms
  1. would function only as an acid because of the carboxyl group.
  2. would function only as a base because of the amino group.
  3. would function as neither an acid nor a base.
  4. would function as both an acid and a base.
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TLS Online TPP Program

#Question id: 3539

#Unit 8. Inheritance Biology

In cucumbers, orange fruit color (R) is dominant over cream fruit color (r). A cucumber plant homozygous for orange fruits is crossed with a plant homozygous for cream fruits. What are phenotype of progeny if backcross between the F1 and the orange parent.
TLS Online TPP Program

#Question id: 2651

#Unit 2. Cellular Organization

In the presence of lactose, how long does it take for the lac operon to be expressed?
TLS Online TPP Program

#Question id: 3273

#Unit 11. Evolution and Behavior

The number of forward mutations is equal to the number of reverse mutations then

a) Population is in equilibrium for forward and reverse mutation rates

b) The population is being in Hardy–Weinberg equilibrium

c) No further change in allelic frequency
TLS Online TPP Program

#Question id: 3523

#Unit 8. Inheritance Biology

If the number of heterozygous pairs involved in a particular cross is three, the phenotype ratio obtained in their F2 generation will be-
TLS Online TPP Program

#Question id: 9578

#Unit 10. Ecological Principles

Bergmann’s rule states that,