X-Linked Recessive Trait

a. Usually more males than females are affected.

b. Affected sons are usually born to unaffected mothers; thus, the trait skips generations.

c. Approximately half of a carrier (heterozygous) mother’s sons are affected.

d. Never passed from father to son.

e. All daughters of affected fathers are carriers.

TLS Online TPP Program

#Id: 3281

#Unit 3. Fundamental Processes

MutS has an ATPase activity that is required for mismatch repair, in Escherichia coli, mismatches are detected by a dimer of the mismatch repair protein MutS.

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#Id: 4458

#Unit 13. Methods in Biology

Molecules in the metal coating are excited and release secondary electrons that are focused onto a scintillation detector

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#Id: 6355

#Unit 8. Inheritance Biology

Homoplasmy - All mutated mitochondria

Heteroplasmy - wild type + mutant mitochondria

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#Id: 5566

#Unit 7. System Physiology – Animal

Assume first a condition in which osmolality is 300 mOsm/kg of H2O throughout the descending and ascending limbs & medullary interstitium

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#Id: 2573

#Unit 7. System Physiology – Animal

Paracellular Pathway

Water and solutes can be transported between the cells by moving across the tight junctions and intercellular spaces.