user237650
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Why isn't there 1' to 2' direction or something else except 5' to 3' in dna replication?
2 votes

[Source] DNA is a polynucleotide. The above structure is of a nucleotide which has three components, a nitrogenous base(yellow), a pentose sugar(purple) and a phosphate group. These nucleotides form ...

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Anatomy of joints of human hand
1 votes

The intermediate radio-ulnar joint is fibrous in arms. [Source: Slideshare.net] You can see the the interosseus membrane between radius and ulna which is composed of white collagen fibres. ...

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What type of bird is this?
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9 votes

From the picture, it looks like Cacatua sulphurea [Source: Wikipedia] The yellow-crested cockatoo (Cacatua sulphurea) also known as the lesser sulphur-crested cockatoo, is a medium-sized (...

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What is the difference between "Bisphosphate" and "Diphosphate" in biochemistry?
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15 votes

[Source:Wikipedia] As you can see in the above structure of ADP(Adenosine di-phosphate), the two phosphate groups in the compound are directly attached to one another. So it is named as di-phosphate. ...

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Identification of a purple flower
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13 votes

It closely looks like Tibouchina urvilleana* or any other Tibouchina species. You can have a look here. [Source:Wikimedia common] Tibouchina urvilleana is a species of flowering plant in the ...

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Complete list of touch sensitive plants
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6 votes

Some of the plants that respond to mechanical stimuli: Dionaea muscipula 'Venus’ Flytrap (Dionaea muscipula) accomplishes one of the more spectacular thigmonastic movements resulting in a swap of ...

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No. of meiotic divisions to produce specific no. of seeds
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7 votes

Assuming that you have studied megasporogenesis and microsporogenesis. To produce a seed, you require the production of pollen(n) and egg(n) and their fusion. Let's start with pollen grain(n): 4 ...

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Why is pollen used as a dietary supplement?
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2 votes

Bee pollen contains high concentrations of reducing sugars, essential amino acids and unsaturated/saturated fatty acids. It contains minerals such as Zn, Cu, Fe, and high K/Na ratio and significant ...

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Are there any flowers that look like snakes?
4 votes

Malacothrix coulteri (Snake's head) looks like the head of a snake. It is an annual herb that produces a waxy, upright flowering stem. The inflorescence is an array of flower heads the yellow or ...

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Effect of cold showers after intense training
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9 votes

Taking cold showers(10-15 ℃) after training or workout have many benefits: It helps in lowering the damaged tissues temperature by constricting blood vessels. Cold helps numb nerve endings which ...

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What is Biradial Symmetry?
7 votes

In biradial symmetry, in addition to antero-posterior axis there are also two other axes or planes of symmetry at right angles to it and each other such as the sagittal or median verticular-...

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How is epinephrine and norepinephrine different?
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5 votes

But little amount of epinephrine also serve as a neurotransmitter. Iam mentioning here some of the differences I found out myself when I had the same question. If you need further reading you can ...

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What would happen if two different viruses penetrated one cell?
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3 votes

One infected cell may produce hundreds of new viruses. By the time the disease occurs, many thousands of cells may be infected and producing new viruses. These new viruses are released from the cell, ...

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What are multiallelic genes?
6 votes

More than two alternative forms (alleles)of a gene in a population occupying the same locus on a chromosome or its homologue is known as multiple alleles. Multiple alleles arise due to mutations of ...

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