TLS Online TPP Program

#Question id: 2111


The membranes of winter wheat are able to remain fluid when it is extremely cold by:

#Unit 2. Cellular Organization
  1. increasing the proportion of unsaturated phospholipids in the membrane

  2. decreasing the percentage of cholesterol molecules in the membrane

  3. decreasing the number of hydrophobic proteins in the membrane

  4. increasing the proportion of glycolipids in the membrane

More Questions
TLS Online TPP Program

#Question id: 3425

#Unit 11. Evolution and Behavior

Many evolutionary forces are operating in population. In study, within population increase genetic variation due to -----A-----while decrease genetic variation due to ------B-----. Between populations increase genetic variation due to -----C-----while decrease genetic variation due to ------D-----.

TLS Online TPP Program

#Question id: 3426

#Unit 11. Evolution and Behavior

Fitness of three different genotypes is given in population I and II, under natural selection which of the following statement are correct?

TLS Online TPP Program

#Question id: 3427

#Unit 11. Evolution and Behavior

Natural selection can alter the frequency of distribution allele and heritable trait in different following way

A- Accumulation of those mutation that increase fitness of population in changing environment

B- Check accumulation of mutation that lower the fitness of species in unchanging environment

c- occur when population is subjected to divergent selection

TLS Online TPP Program

#Question id: 3428

#Unit 11. Evolution and Behavior

In a sample from an African population, the frequency of blood group allele IA, IB and IO were 0.30, 0.20 and 0.50 respectively. What is expected frequency of A and B blood group respectively when population size 1000?

TLS Online TPP Program

#Question id: 16204

#Unit 11. Evolution and Behavior

Evolution of different characters at different rates within a lineage called as?

TLS Online TPP Program

#Question id: 16961

#Unit 11. Evolution and Behavior

Which statements is not true for Divergent evolution?