TLS Online TPP Program

#Question id: 4449


Promoters recognized by polymerase containing s70 share the following characteristic structure;

#Unit 3. Fundamental Processes
  1. Two conserved sequences, each have 4 nucleotides

  2. The two defined sequences are centered, respectively, at ~10 bp and at ~35 bp downstream of the site where RNA synthesis starts.

  3. In general the consensus sequence separated by the 17 bp

  4. Promoters with sequences far to the consensus are generally stronger.

More Questions
TLS Online TPP Program

#Question id: 3256

#Unit 9. Evolution & Diversity of Life Forms

There are three alleles, A1, A2, and A3, whose frequencies are equal abundance. According the Hardy-Weinberg equilibrium

TLS Online TPP Program

#Question id: 3257

#Unit 9. Evolution & Diversity of Life Forms

Which of the following statements about evolution is NOT true?

TLS Online TPP Program

#Question id: 3258

#Unit 9. Evolution & Diversity of Life Forms

Which of the following incorrect about genetic drift

TLS Online TPP Program

#Question id: 3259

#Unit 9. Evolution & Diversity of Life Forms

Different type of evolution leads to group of taxon in following three manners

A- group of taxon whose member have descended from common ancestor

B- when two lineages convergently  evolve similar character states form  groups that are recognized by pheneticists

c. taxon that include most recent ancestor but not all of its descendent

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?