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#Question id: 1945


Neonatal myasthenia gravis is thought to be caused by:

#Unit 4. Cell Communication and Cell Signaling
  1. An inherited genetic defect

  2. Transplacental transfer of maternal IgG against the TSH receptor

  3. Overactivity of regulatory T-cells

  4. Transplacental transfer of maternal IgG against the acetylcholine receptor

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TLS Online TPP Program

#Question id: 15194

#Unit 8. Inheritance Biology

 Genes that control coat color in mammals represent some of the best early examples of genes with multiple alleles exhibiting different phenotypes. A classic example is the C gene in hamsters. Three of the known alleles of this gene are C, ca and ck. Each supplies a different amount of black pigment to the coat hair. The phenotypes of three different homozygous strains are as follows.

would mate the true-breeding  ca ca  hamsters to the true-breeding ck ck  hamsters to produce heterozygous  ca and ck  F1 progeny,  the F1 progeny cack  hamsters self fertilized, From the fraction of F2 progeny that have the wild type black phenotype, 

Crosses and their interpretation that would have allowed geneticists to come to the conclusion that ca and ck were likely to be alleles of the different gene. 
What will be the ratio of F2 hamster;

TLS Online TPP Program

#Question id: 17821

#Unit 13. Methods in Biology

is most frequently observed data value 

TLS Online TPP Program

#Question id: 12599

#Unit 10. Ecological Principles

What is the most important role of photosynthetic organisms in an ecosystem? 

TLS Online TPP Program

#Question id: 5132

#Unit 5. Developmental Biology

Upon secretion of wnt, When Wnt attaches to the Frizzled receptor on a responding cell, the cell secretes Notum, a hydrolase that associates with glypican and then cleaves off Wnt’s attached lipids in a process of deacylation or delipidation. This process:

TLS Online TPP Program

#Question id: 26401

#Unit 3. Fundamental Processes

After initiation Cdt1 is degraded with the protein complex recruited by