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9. First dna Molecule Made Almost Entirely Of Artificial Parts

entirely

цілком

variety

різноманітність

artificial

штучний

a cell

клітина

an improvement

вдосконалення

to craft

виготовляти

a gene

ген

equipment

устаткування

to extend

розширити

a framework

каркас; рама

capability

здатність

a strand

смуга

a blueprint

копія

to resemble

нагадувати

a set

набір; множина

triple-stranded

три-спіральний

Chemists in Japan report development of the world’s first DNA molecule made almost entirely of artificial parts. The finding could lead to improvements in gene therapy, futuristic nano-sized computers, and other high-tech advances, they say. Scientists have tried for years to develop artificial versions of DNA in order to extend its amazing information storage capabilities. As the genetic blueprint of all life forms, DNA uses the same set of four basic building blocks, known as bases, to code for a variety of proteins used in cell functioning and development. Until now, scientists have only been able to craft DNA molecules with one or a few artificial parts, including certain bases. The researchers from Japan used high-tech DNA synthesis equipment to connect together four entirely new, artificial bases inside the sugar-based framework of a DNA molecule. This resulted in unusually stable, double-stranded structures resembling natural DNA. Like natural DNA, the new structures were right-handed and some easily formed triple-stranded structures. The unique chemistry of these structures and their high stability offer unprecedented possibilities for developing new biotech materials and applications.

Speech patterns

result in

призводити до; викликати

Heavy rains resulted in floods.

Сильні дощі викликали повені.

result from

бути наслідком чогось

The road accident resulted from the thick fog.

Дорожня аварія виникла через густий туман.

1. Say whether the following statements are TRUE or FALSE.

1. Chemists from Japan have developed a molecule of water.

2. Scientists have never been able to create DNA with any artificial part.

3. The new structures are rather unstable.

2. Give synonyms to the following words:

entirely, artificial, to extend, capability, basic, to craft, certain, to use, to connect, to resemble, to offer.

3. Answer the questions.

1. What was the purpose of creating an absolutely artificial DNA? 2. How many building blocks does DNA use to code genetics of all life forms? 3. Was the artificial DNA absolutely similar to a natural one? 4. What properties make the artificial DNA so attractive?

4. Fill in the gaps with the words from the text.

1. A ___ of water consists of two atoms of hydrogen and one atom of oxygen.

2. The Internet is a global system of interconnected ___ networks.

3. The ___ is the basic structural and functional unit of all known living organisms.

4. Modern aircrafts are fitted with sensitive electronic ___ which can be affected by mobile phones and other electronic appliances carried by passengers.

5. Computer data ___ is often referred to as computer memory.

Grammar practice

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