12 yr ago the average age of a husband and a wife was 20 yr .The average remains the same today when they have two children. What is the present age of the youngest child if they differ in age by 2 yr.

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#Question id: 10139

#Unit 6. System Physiology – Plant

There are two distinct forms of rubisco. Form I is found in vascular plants, algae, and cyanobacteria; form II is confined to certain photosynthetic bacteria, Some statements about the Rubisco is given;

a.) A complex form I structure with eight identical large subunits each containing a catalytic site, and eight identical small subunits of uncertain function

b.) The form II rubisco of photosynthetic bacteria is simpler in structure, having two subunits that in many respects resemble the large subunits of the plant enzyme

c.) The plant enzyme has an exceptionally low turnover number; only three molecules of CO2 are fixed per second per molecule of rubisco at 25 o C

d.) Rubisco makes up almost 50% of soluble protein in chloroplasts and is probably one of the most abundant enzymes in the biosphere

Which of the following statements about rubisco will true?

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#Question id: 1174

#Unit 4. Cell Communication and Cell Signaling

Binding of erythropoietin to its extracellular receptor engages which of the following signaling pathways?

a. JAK/STAT                                                  b. Ras/MAP kinase

c. PI-3 kinase                                                  d. TGF-β

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#Question id: 10330

#Unit 9. Diversity of Life Forms

If the eukaryotic condition arose, independently, several different times during evolutionary history, and if ancestors of these different lineages are extant and are classified in the domain Eukarya, then the domain Eukarya would be

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#Question id: 2900

#Unit 2. Cellular Organization

Which of the following statement is INCORRECT from the set of statements given below?

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#Question id: 4452

#Unit 3. Fundamental Processes

A final DNA element that binds RNA polymerase is sometimes found just downstream from the –10 element. This element is called the