Miller-urey''s experimental procedure, PL-SQL Programming

Assignment Help:

MILLER-UREY'S EXPERIMENTAL PROCEDURES -

They recreated the probable conditions on the primitive earth in the laboratory.
An atmosphere containing hydrogen, ammonia, methane in ratio of 2 : 1 : 2 and water vapour was created in one chamber of a spark discharge apparatus and condensed liquids were allowed to accumulate in the other chamber.
Energy was supplied by heating the liquid containing chamber as well as by electric sparks from electrodes in the gaseous chamber. Experiment was performed at 800°C for 7 days.

1609_miller experiment.png

They observed that amino acids like glycine, alanine aspartic acid and some more complex organic compounds were formed in vitro when the mixture of water vapours, methane, ammonia and hydrogen gasses in a close chamber is subjected to electric discharge for a few days.
This experiment confirmed the possibility of a biogenic synthesis of various containing complex organic compounds from the amino acids reducing mixture of simple gases.
Calvin Melvin (1958) irradiated CO and H₂O directly in a cyclotron and obtained formic acid, succinic acid and oxalic acid.

Related Discussions:- Miller-urey''s experimental procedure

Creating a sql file, Creating a SQL file 1. Open a new file in Notepad...

Creating a SQL file 1. Open a new file in Notepad++ and save it to the location c:\mysql\bin, with the name lab8script.sql (the file extension should be .sql ). Add a MySQL co

Between operator-comparison operators, BETWEEN Operator The operator BET...

BETWEEN Operator The operator BETWEEN, tests whether the value lies in a specified series. That means "greater than or equivalent to low value and less than or equivalent to hig

Triggers, At times, customers make mistakes in submitting their orders and ...

At times, customers make mistakes in submitting their orders and call to cancel the order. Brewbean’s wants to create a trigger that automatically updates the stock level of all pr

Introduction to oracle, Introduction Oracle 9i - it was made publ...

Introduction Oracle 9i - it was made public in the year 2001 with over 400 features, and graphics, it has merged the traditional business with modern internet application

Product-specific packages in pl/sql, Product-specific Packages The Ora...

Product-specific Packages The Oracle and different Oracle tools are supplied with the product-specific packages which help you to build the PL/SQL-based applications. For illu

Authorize and fetch data from instagram, Authorize and fetch data from Inst...

Authorize and fetch data from Instagram Project Description: Incorporate Instagram feed on mobile site platform: c#, ms sql, jquerymobile, jquery Web admin Author

Explicit cursors, Explicit Cursors The set of rows returned by the que...

Explicit Cursors The set of rows returned by the query can include zero, one, or multiple rows, depending on how many rows meet your search criteria. Whenever a query returns

Pits, PITS Depressions in secondary cell wall is called pit. A pi...

PITS Depressions in secondary cell wall is called pit. A pit present on the free cell wall surface without its partner is called Blind pit. It consists of 2 parts -

Level - sql pseudocolumns, LEVEL You use the LEVEL with the SELECT CON...

LEVEL You use the LEVEL with the SELECT CONNECT BY statement to categorize rows from a database table into a tree structure. The LEVEL returns the level number of a node in a

Third step at defining type sid in sql, Third Step at defining type SID in ...

Third Step at defining type SID in SQL CREATE DOMAIN SID AS VARCHAR(5) CHECK ( VALUE IS NOT NULL AND SUBSTRING(VALUE FROM 1 FOR 1) = 'S' AND CAST('+'||SUBSTRING(VALUE

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages