Practicing Success

Target Exam

CUET

Subject

Biology

Chapter

Principles of Inheritance and Variation

Question:

Statement I :The unit of inheritance are genes.
Statement II : Genes contain the information that is required to express a particular trait in an organism.

Options:

Only statement I is correct .

Only statement II is correct .

Both statements I and II are correct .

Both statements I and II are incorrect .

Correct Answer:

Both statements I and II are correct .

Explanation:

The correct answer is Option (3) -Both statements I and II are correct .

Statement I: "The unit of inheritance is genes."

  • This statement is correct. Genes are the basic units of inheritance. They are segments of DNA that carry the genetic code and instructions for the synthesis of functional products such as proteins or RNA molecules.

Statement II: "They contain the information that is required to express a particular trait in an organism."

  • This statement is also correct. Genes contain the information necessary to express specific traits in an organism. The sequence of nucleotides in a gene serves as a code that determines the sequence of amino acids in a protein. Proteins, in turn, play a crucial role in determining the characteristics and functions of an organism. The information in genes is essential for various biological processes, including growth, development, and the maintenance of life processes.

In summary, both statements are accurate. Genes are the units of inheritance, and they carry the information required to express particular traits in an organism. The genetic information encoded in genes is vital for the inheritance of traits from one generation to the next and for the overall functioning of living organisms.