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TLS Online TPP Program

#Question id: 8696

There is some evidence that reptiles called cynodonts may have had whisker-like hairs around their mouths. If true, then hair is a shared ________.

#XL - S Microbiology
  1. derived character of mammals, even if cynodonts continue to be classified as reptiles
  2. derived character of all vertebrates and not of the mammal clade
  3. ancestral character of the all vertebrates, but only if cynodonts are reclassified as mammals
  4. derived character of mammals, but only if cynodonts are reclassified as mammals
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TLS Online TPP Program

#Question id: 5741

#XL - S Microbiology

In a mammal 2 Barr bodies are observed.  How many X chromosomes does the organism have?
TLS Online TPP Program

#Question id: 5741

#XL - T Zoology

In a mammal 2 Barr bodies are observed.  How many X chromosomes does the organism have?
TLS Online TPP Program

#Question id: 5742

#XL - S Microbiology

When an allotetraploid (AABB) is backcrossed to one of its progenitor species (AA), a sterile progeny is produced.  The genomic composition of this sterile individual can be best represented by
TLS Online TPP Program

#Question id: 5743

#XL - S Microbiology

Euploidy is
TLS Online TPP Program

#Question id: 5743

#XL - T Zoology

Euploidy is
TLS Online TPP Program

#Question id: 5744

#XL - S Microbiology

The basic diploid chromosome number in Rye Secale cereale is 14. A new species of rye is found that has 28 chromosome species. This species is said to be