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TLS Online TPP Program

#Question id: 11499

Biologists have long been aware that the defunct kingdom Protista is paraphyletic. Which of these statements is both true and consistent with this conclusion?

#Unit 9. Diversity of Life Forms
  1. Many species within this kingdom were once classified as monerans.
  2. Animals, plants, and fungi arose from different protist ancestors.
  3. The eukaryotic condition has evolved only once among the protists, and all eukaryotes are descendants of that first eukaryotic cell.
  4. Some protists, all animals, and all fungi share a protist common ancestor, but these protists, animals, and fungi are currently assigned to three different kingdoms.
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TLS Online TPP Program

#Question id: 2879

#Unit 2. Cellular Organization

Hybridization between mature mRNA and DNA can identify introns in eukaryotic genes. When mature mRNA produced by the insulin gene is hybridized with denatured chromosomal DNA, which of the following will most likely be observed?
TLS Online TPP Program

#Question id: 3894

#Unit 3. Fundamental Processes

Which of the following is a DNA sequence?
TLS Online TPP Program

#Question id: 2050

#Unit 4. Cell Communication and Cell Signaling

Which of the following statements is NOT TRUE?
TLS Online TPP Program

#Question id: 4174

#Unit 3. Fundamental Processes

Which is not true about the genetic code?
TLS Online TPP Program

#Question id: 13103

#Unit 13. Methods in Biology

With the help of DNA fingerprinting which can be used to determine paternity. There are three babies (Baby A, Baby B and Baby C) in a maternity ward, and three sets of confused and worried parents. (Father and Mother #1 are a couple, as are Father and Mother #2, and Father and Mother #3.) 
You do each PCR reaction and load each one into a separate well of an agarose gel, and then run the gel.
 
 

Why is it that some people show only one band?