TLS Online TPP Program

#Question id: 3812


The mechanism of DNA replication is studied in an E. coli replication fork. Which is a characteristic of this replication fork?

#Unit 3. Fundamental Processes
  1. Strand I is replicated continuously while strand II is replicated discontinuously.

  2. Strand III is a lagging strand template while strand IV is a leading strand template

  3. The double-helix containing strands I and III must be denatured in order for replication to continue.

  4. The double-helix containing strands II and IV will form base-pairs using phosphodiester bonds.

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TLS Online TPP Program

#Question id: 3260

#Unit 9. Evolution & Diversity of Life Forms

Consider a diploid population at Hardy-Weinberg equilibrium. For a locus with two alleles, the frequency of the A1A1 genotype is 0.04) The frequency of A2 allele is

TLS Online TPP Program

#Question id: 3261

#Unit 9. Evolution & Diversity of Life Forms

A parent population (P) is change into daughter populations (Q) which grow in habitats. After 1000 generations, the equilibrium frequency distribution of of the daughter populations is shown in the figure below. For reference, the vertical line represents the mean of the parent population. Which type of natural selection?

TLS Online TPP Program

#Question id: 3262

#Unit 9. Evolution & Diversity of Life Forms

In a population, the genotype frequencies are: f(A1A1)= 0.35; f(A1A2) = 0.30; f(A2A2) = 0.35; Which of the following statement is correct?

TLS Online TPP Program

#Question id: 3263

#Unit 9. Evolution & Diversity of Life Forms

From an evolutionary point of view, plant tendrils derived from leaves and those derived from stems are examples of

TLS Online TPP Program

#Question id: 3264

#Unit 9. Evolution & Diversity of Life Forms

Which of the following is (are) true of natural selection?

TLS Online TPP Program

#Question id: 3265

#Unit 9. Evolution & Diversity of Life Forms

If the curve shifts to the left or to the right, there is no gene flow, and the population size consequently increases over successive generations, then which of these is (are) probably occurring?