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#Question id: 3891

Protein amino acid side chains can hydrogen bond in the major groove of DNA, and discriminate between each of the four possible base pairs.  In which one of the following groups of amino acids can all three members potentially be used in such DNA-protein recognition?

#3. Fundamental Processes

  1. Ala, Asn, Glu

  2. Arg, Gln, Leu

  3. Asn, Gln, Trp

  4. Asn, Glu, Lys

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#Question id: 12721

#6. System Physiology – Plant

There are the five groups of late embryogenesis abundant (LEA) proteins found in plants

Match the following groups of LEA protein with its functional information;

 Group (family name)

                           Functional information

 

I) Group 1

   (D-19 family)

 

 

a) It is an abundant protein in cotton embryos, Each putative dimer of this group may bind as many as ten inorganic phosphates and their counterions

 

 

II) Group 2

    (D-11 family)

 

b) Possibly functions in ion sequestration to protect cytosolic metabolism When LE25 is expressed in yeast, it confers salt and freezing tolerance

 

 

III) Group 3

     (D-7 family)

 

c) In tomato, a gene encoding a similar protein is expressed in response to nematode feeding

 

 

IV) Group 4

    (D-95 family)

 

d) Contains more water of hydration than typical globular proteins Overexpression confers water deficit tolerance on yeast cells

 

 

V) Group 5

    (D-113 family)

 

e) Often localized to the cytoplasm or nucleus More acidic members of the family are associated with the plasma membrane May act to stabilize macromolecules at low water potential

 

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#Question id: 9183

#9. Diversity of Life Forms

If you are interested in observing a relatively simple community structure in a clear water lake, you would do well to choose diving into ________.
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#Question id: 2277

#2. Cellular Organization

A gram-positive bacterium is stained _______________ by the gram stain
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#Question id: 22939

#5. Developmental Biology

CO gene expression appears to be highest in the companion cells of the phloem of leaves and stems, the downstream target gene of CONSTANS is
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#Question id: 10405

#6. System Physiology – Plant

In some cases phytochrome itself moves to the nucleus in a light-dependent manner. Detection of this movement relied on the ability to fuse phytochrome with,