Question : Life originated by chemosynthesis was proved in the laboratory by:
Option 1: Frederick Sanger
Option 2: Louis Pasteur
Option 3: Stanley Miller
Option 4: Aristotle
Recommended: How to crack SSC CHSL | SSC CHSL exam guide
Don't Miss: Month-wise Current Affairs | Upcoming government exams
New: Unlock 10% OFF on PTE Academic. Use Code: 'C360SPL10'
Correct Answer: Stanley Miller
Solution : The correct answer is Stanley Miller.
In the laboratory, Stanley Miller and Harold Urey demonstrated that life began with chemosynthesis. Miller and Urey undertook an experiment in 1952 to recreate the circumstances that occurred on early Earth. They put water, methane, ammonia, and hydrogen in a sealed chamber and ignited the mixture with an electrical spark. After a week, they discovered that the mixture included a range of chemical components, including amino acids, which are the building blocks of proteins.
Candidates can download this e-book to give a boost to thier preparation.
Application | Eligibility | Admit Card | Answer Key | Preparation Tips | Result | Cutoff
Question : The Young Bengal Movement was founded by ______.
Option 1: Henry Louis Vivian Derozio
Option 2: Dayananda Saraswati
Option 3: Lala Hansraj
Option 4: Keshub Chandra Sen
Question : When did Louis Pasteur discover molecular chirality and observe that crystals of some compounds exist as mirror images laid the foundation for modern stereochemistry?
Option 1: 1848
Option 2: 1830
Option 3: 1875
Option 4: 1892
Question : Name the scientist who proved that plants have life.
Option 1: Gregor Johann Mendel
Option 2: Hugo De Vries
Option 3: Jagadish Chandra Bose
Option 4: Robert Brown
Question : The first organic compounds synthesised in the laboratory was
Option 1: Urea
Option 2: Uric acid
Option 3: Lactic acid
Option 4: Glucose
Question : Identify the INCORRECTLY spelt word in the following sentence.
Research has proved that meteors have largely destructed and impackted earth
Option 1: impackted
Option 2: Research
Option 3: proved
Option 4: destructed
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile