Alternaria produces a toxin, which activates a plant cell death program in tomato (Solanum lycopersicum) leaves___

TLS Online TPP Program

#Question id: 33108

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the given figure fits when enzyme is complementary to substrate only

TLS Online TPP Program

#Question id: 16143

#Unit 4. Cell Communication and Cell Signaling

undifferentiated hematopoietic stem cells would not express surface markers specific for mature cells from the multiple blood lineages (“Lin” markers). They used several approaches to eliminate cells in the bone marrow that did express these markers (Lin+ cells) and then examined the remaining (Lin+) population for its potential to continually give rise to all blood cells over the long term. Lin- cells were, indeed, enriched for this potential. what marker is   express If cells inter in lymphoid lineages?

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#Question id: 23874

#Unit 13. Methods in Biology

Scientists developed a set of guidelines to address the safety of DNA technology. Which of the following is one of the adopted safety measures?

TLS Online TPP Program

#Question id: 11157

#Unit 9. Diversity of Life Forms

Typically, mutations that modify the active site of an enzyme are more likely to be harmful than mutations that affect other parts of the enzyme. A hypothetical enzyme consists of four domains (A—D), and the amino acid sequences of these four domains have been determined in five related species. Given the proportion of amino acid homologies among the five species at each of the four domains, which domain probably contains the active site?

TLS Online TPP Program

#Question id: 20318

#Unit 4. Cell Communication and Cell Signaling

Which statement is not correct about bacterial quorum sensing?