In the following passage, some words have been deleted. Read the passage carefully and select the most appropriate option to fill in each blank.
Deoxyribonucleic acid (DNA) is a very special molecule. It (1) _______ as the code for all life on Earth, holding the cellular instructions to (2) _________ everything from a beetle to a human. Because DNA is (3) __________ to each species, it's like a product barcode in a supermarket. As animals and plants live their lives, they (4) ______ fragments of their DNA into their environment (5) _________ dead skin, hair, saliva, scat, leaves or pollen. These traces make up environmental DNA. There's enough DNA in water and even air to tell species apart.
Select the most appropriate option to fill in blank no. 5.
- AOption (a)
farther
- BOption (b)
above
- COption (c)
for
- DOption (d)
through
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Correct answer
through
Why this answer is correct
The correct answer is 'through'.
Key Points
- Blank (5) introduces a list of biological materials (dead skin, hair, saliva, etc.) through which DNA fragments are released into the environment.
- The word "through" indicates the means, medium, or cause by which something happens or is achieved. In this context, the DNA fragments enter the environment by means of or via the listed materials. (के माध्यम से)
- Therefore, "through" is the most appropriate word to fill blank (5).
Therefore, the correct answer is 'Option 4'.
Complete Passage: Deoxyribonucleic acid (DNA) is a very special molecule. It 1. acts as the code for all life on Earth, holding the cellular instructions to 2. make everything from a beetle to a human. Because DNA is 3. unique to each species, it's like a product barcode in a supermarket. As animals and plants live their lives, they 4. shed fragments of their DNA into their environment 5. through dead skin, hair, saliva, scat, leaves or pollen. These traces make up environmental DNA. There's enough DNA in water and even air to tell species apart.
Additional Information
- Farther (और आगे): Refers to distance and is not grammatically correct in this context.
- Above (ऊपर): Refers to position and does not describe the means of release.
- For (के लिए): Indicates purpose or duration and does not fit the context of how the DNA fragments are released via these materials.