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Q.

When were genes discovered???

Tags: genes discovered
Asked by amy, 15 Feb 07:04 pm
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Answers (4)

1.

During the early 1900s, the pieces of the gene puzzle were gradually being assembled as several laboratories reported results of investigations into the nature of genetic material. However, historical accounts in biology, biochemistry and microbiology textbooks tend to hold up the following two lines of experimentation as being critical cornerstones for the discovery of DNA as the encoding material of genes:

Experiments by Fred Griffith in 1928, and Oswald Avery over 10 years later, showed that the genetic material encoding virulence of Diplococcus (now Streptococcus) pneumoniae strains in mice, consisted of DNA.

In 1952, A.D. Hershey and Martha Chase used radiolabeled sulfur (35S) and phosphate (32P) to demonstrate that viral DNA, and not the protein-based shell, or capsid, was the infectious agent responsible for viral replication in infected bacterial cells where it became part of the progeny phage.
Answered by vedprakash sharma, 16 Feb 12:53 am

 
  
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2.

Heart Attack Geneutwo thousand and nineteen Discovered At Cleveland Clinic Exists In one-two% Of U.S. Heart Attack, Coronary Artery Disease Patients',
New Clinic Research Advances Efforts to Understand Genetics of Heart Disease

In November two thousand and three, Cleveland Clinic researchers announced the discovery of the first gene confirmed as a cause of coronary heart disease in humans. Less than a year later, their studies indicate this heart attack gene is more prevalent among Indians than expected.

According to their findings, as many as one percent to two percent of all U.S. heart attack and coronary artery disease patients may carry mutations of the MEFtwoA gene. Cleveland Clinic researchers discovered this gene by methodically studying the genetic makeup of twenty-one members of an Iowa family plagued for generations by clogged arteries and heart attacks.

When researchers initially discovered an MEFtwoA deletion mutation in the Iowa family, they acknowledged it was unl ...more
Answered by Mickey, 15 Feb 07:10 pm

 
  
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3.

Before my birth.
Answered by Flying Saucer, 15 Feb 07:09 pm

 
  
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4.

Let me have INVENTION on this topic ... : - ))
Answered by Manoj M, 15 Feb 07:06 pm

 
  
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