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TLS Online TPP Program

#Question id: 2927

Site-directed mutagenesis of Tyr-15 to Phe in cdc2:

#Unit 2. Cellular Organization

  1. results in the wee mutant phenotype.

  2. results in a phenotype similar to that caused by mutation in cdc25.

  3. increases the possible number of phosphate groups on Cdc2.

  4. prevents binding of Cdc13.

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TLS Online TPP Program

#Question id: 18677

#Unit 13. Methods in Biology

Point mutations in DNA, such as occur in a range of human diseases, can be identified by 
TLS Online TPP Program

#Question id: 33153

#Unit 2. Cellular Organization

Activation of APC/C depends primarily on association with one of two activating subunits (Cdc20 or Cdh1), because:
TLS Online TPP Program

#Question id: 2344

#Unit 2. Cellular Organization

The release of insulin from certain human cells is an example of
TLS Online TPP Program

#Question id: 13151

#Unit 8. Inheritance Biology

A series of two-point crosses were carried out among five loci (a, b, c, d and e) producing the following recombination frequencies. Using these recombination frequencies, map these five loci, showing  their linkage groups, the order of the loci in each linkage group is;

What is the correct order of the loci?
TLS Online TPP Program

#Question id: 11698

#Unit 7. System Physiology – Animal

A patient has an elevated plasma thyroxine (T4) concentration, a low plasma thyroid-stimulating hormone (TSH) concentration, and a thyroid gland that is smaller than normal. Which of the following is the most likely explanation for these findings?