Principle Of Inheritance And Variation Question 70
Question: Assertion : One gene is required for one enzyme. Reason : Genes express themselves through synthesis of enzymes.
Options:
A) If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B) If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C) If the assertion is true but the reason is false
D) If both the assertion and reason are false
Show Answer
Answer:
Correct Answer: A
Solution:
Genes control various traits in an organism through a controlled exercise on the developmental processes.
Such a control is due to synthesis of proteins, which is under direct control of genes.
Some of these proteins synthesized by genes are enzymes and control biosynthetic pathways.
Based on their work, Beadle and Tatum proposed a concept called one gene-one enzyme hypothesis.
Such a hypothesis means that if in a biosynthetic pathway several steps are involved, each step is controlled by a specific enzyme, which is synthesized under the control of a specific gene.
BETA
