TLS Online TPP Program

#Question id: 29573


Which of the following effector is produced by both Stagonospora nodorum and Pyrenophora tritici‐repentis, which cause glume blotch and tan spot disease, respectively, on wheat (Triticum spp.)

#Unit 6. System Physiology – Plant
  1. P50
  2. ToxA
  3. CP
  4. Avr
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TLS Online TPP Program

#Question id: 23157

#Unit 13. Methods in Biology

Immunofluorescence microscopy, the most widely used method of detecting 

TLS Online TPP Program

#Question id: 5454

#Unit 8. Inheritance Biology

Which of the following is not an example of quantitative trait?

TLS Online TPP Program

#Question id: 1186

#Unit 4. Cell Communication and Cell Signaling

Which of the following explains why Ras is activated quickly by RTKs?

TLS Online TPP Program

#Question id: 15149

#Unit 8. Inheritance Biology

In this problem we will explore some of the many ways that mutations in two different genes can interact to produce different Mendelian ratios. Consider a hypothetical insect species that has red eyes. Imagine mutations in two different unlinked genes that can, in certain combinations, block the formation of red eye pigment yielding mutants with white eyes. In principle, there are two different possible arrangements for two biochemical steps responsible for the formation of red eye pigment. The two genes might act in series such that a mutation in either gene would block the formation of red pigment. Alternatively, the two genes could act in parallel such that mutations in both genes would be required to block the formation of red pigment.
Further complexity arises from the possibility that mutations in either gene that lead to a block in enzymatic activity could be either dominant or recessive. If the crosses is made between a wild type insect with red eyes and a true breeding white eyed strain with mutations in both genes. Such considerations yield the Pathways in series with recessive mutations in both genes, what will be the phenotype in F1 progeny?

TLS Online TPP Program

#Question id: 17287

#Unit 13. Methods in Biology

Consider the following grouped frequency distribution : 

What is mean deviation about the median ?