How does inhibition of the Na+/K+ ATPase increase the force of heart muscle contraction?

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#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: 7182

#Unit 5. Developmental Biology

Suppose a flower had normal expression of genes A and C and expression of gene B in all four whorls. Based on the ABC hypothesis, what would be the structure of that flower, starting at the outermost whorl?

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#Question id: 11861

#General Aptitude

Four metal rods of lengths 78 cm , 104 cm , 117 cm and 169 cm are to be cut into parts of equal length. Each part must be as long as possible . What is the maximum number of pieces that can be cut ?

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#Question id: 2014

#Unit 4. Cell Communication and Cell Signaling

Some pathogens can undergo rapid changes resulting in antigenic variation. Which of the following is such a pathogen?

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#Question id: 18937

#Unit 13. Methods in Biology

Cloning techniques can be used not only to overproduce proteins but to produce protein products altered, subtly or dramatically, from their native forms. Specific amino acids may be replaced individually by