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#Question id: 6984


Which of the following genes is unlikely to be involved in preaxial polydactyly in mice?

#Unit 5. Developmental Biology
  1. Sonic hedgehog
  2. Gli transcription factors

  3. Delta
  4. Patched 1
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TLS Online TPP Program

#Question id: 12397

#Unit 6. System Physiology – Plant

when auxin binds to its receptor is the activation of a select group of transcription factors. The activated transcription factors enter the nucleus and promote the expression of specific genes. Genes whose expression is stimulated by the activation of pre-existing  transcription factors are called primary response genes or early genes. 
a) Some of the early genes encode proteins that regulate the transcription of secondary response genes, or late genes, that are required for the short-term responses to the hormone
b) Early genes are involved in intercellular communication, or cell-to-cell signaling and some also involved in adaptation to stress
c) Secondary response genes are required for the long-term responses to the hormone. Because late genes require de novo protein synthesis, their expression can be blocked by protein synthesis inhibitors
d) Early-gene expression can also be blocked by inhibitors of protein synthesis such as cycloheximide, the time required for the expression of the early genes can be quite short, ranging from a few minutes to several hours
Which of the following is the correct prediction about primary response gene?

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#Question id: 28714

#Unit 2. Cellular Organization

COPI Vesicle transport from cis Golgi network to ER, these COPI vesicle coated with proteins_____?_____ 

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#Question id: 6574

#General Aptitude

Which term comes next in the sequence : Z , X, S, I, R, R, ?, ?

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#Question id: 32330

#Unit 1. Molecules and their Interaction Relevant to Biology

The parietal cells of the stomach lining contain membrane “pumps” that transport hydrogen ions from the cytosol (pH 7.0) into the stomach, contributing to the acidity of gastric juice (pH 1.0). Calculate the free energy required to transport 1 mol of hydrogen ions through these pumps. (Hint: see Chapter 11.) Assume a temperature of 37 °C.

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#Question id: 4796

#Unit 8. Inheritance Biology

Trait is encoded by  genes that are expressed in only one sex . In domestic chickens, display a feather pattern in male and female

Genotype                        Male phenotype           Female phenotype

HH                             hen feathering                      hen feathering

Hh                         hen feathering                            hen feathering

hh             cock feathering (plumage pattern )         hen feathering

If cross between Hh and Hh. what is probability of their progeny with cock feathering