TLS Online TPP Program

#Question id: 5703


Robertsonian translocation is reciprocal exchange of genetic segment between two acrocentric chromosomes. Which of the following is incorrect statement?

#Unit 8. Inheritance Biology
  1. Translocation resulting karyotype in humans leaves only 45 chromosomes

  2. Robertsonian translocations carrier individuals are not associated with any phenotypic abnormalities

  3. All gamete of Robertsonian translocations carrier are unbalanced gametes that lead to miscarriages or abnormal offspring

  4. Carriers of Robertsonian translocations involving chromosome 21 have a higher risk of having a child with Down syndrome

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TLS Online TPP Program

#Question id: 11149

#Unit 7. System Physiology – Animal

The Nernst equation specifies the equilibrium potential for a particular ion. This equilibrium potential is a function of ________.

TLS Online TPP Program

#Question id: 11150

#Unit 7. System Physiology – Animal

Use the information in the table to answer the question.


Calculate the equilibrium potential for potassium. Assume a temperature of 37°C.

TLS Online TPP Program

#Question id: 11151

#Unit 9. Diversity of Life Forms

What conclusion can be drawn validly from these data?

TLS Online TPP Program

#Question id: 11152

#Unit 9. Diversity of Life Forms

When sufficient heat is applied, double-stranded DNA denatures into two single-stranded molecules as the heat breaks all of the hydrogen bonds. In an experiment, molecules of single-stranded DNA from species X are separately hybridized with putatively homologous single-stranded DNA molecules from five species (A-E). The hybridized DNAs are then heated, and the temperature at which complete denaturation occurs is recorded. Based on the data below, which species is probably most closely related to species X?


TLS Online TPP Program

#Question id: 11153

#Unit 9. Diversity of Life Forms

A researcher wants to determine the genetic relatedness of several breeds of dog (Canis familiaris). The researcher should compare homologous sequences of __________ that are known to be __________.

TLS Online TPP Program

#Question id: 11154

#Unit 9. Diversity of Life Forms

Concerning growth in genome size over evolutionary time, which of these does not belong with the others?