Subjectwise MCQ
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10445+ MCQ Questions in english हिन्दी
CSS is used to
Cascading Style Sheets — visual styling.
HTML is used for:
Markup language for webpage layouts.
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Which symbol marks the end of a statement in C/C++?
semicolon separates statements.
High-level programming languages are
Human-readable — e.g. Python, Java.
Floating-point numbers are used to represent:
Real numbers — scientific notation representation.
A nibble is equal to:
4 bits — half a byte.
Unicode’s primary purpose is to:
Universal character encoding for global languages.
In ASCII, what decimal code represents capital ‘A’?
65 — standard character encoding.
Binary “1010” represents the decimal number:
10 — 1×8 + 0×4 + 1×2 + 0×1
The smallest unit of data in computing is called a:
Arithmetic Logic Unit — performs mathematical and logical operations.
What is the main function of an operating system?
Design hardware
What does GPU stand for?
Graphics Processing Unit — handles rendering and visual tasks.
Which of these is non-volatile memory?
ROM — retains data even when power is off.
CPU — executes instructions and processes data.
Random Access Memory — volatile memory used for current tasks.
Which device is considered the brain of the computer?
CPU — executes instructions and processes data.
Restriction enzymes are used to:
Restriction enzymes — create DNA fragments.
Restriction enzymes are used to:
Restriction enzymes — create DNA fragments.
A Western blot detects:
Proteins — using antibodies after electrophoresis.
CRISPR/Cas9 is used for:
Gene editing — targeted DNA modifications.
Gel electrophoresis separates biomolecules by:
Size and charge — fragments move through agarose.
PCR (polymerase chain reaction) amplifies:
DNA — through thermal cycling and DNA polymerase.
An ELISA test detects:
Antibodies/antigens — used for diagnosis (e.g., HIV).
HIV primarily targets:
CD4⁺ T cells — leading to immune deficiency.
Autoimmune disease occurs when:
Self-reactive immune response.
Vaccines typically contain:
Antigens or attenuated pathogen — to trigger immune memory.
Antibodies are produced by:
B cells — they release immunoglobulins.
ATP is composed of adenine, ribose, and:
Three phosphates — energy-rich bonds.
Enzyme activity can be denatured by:
High heat — disrupts protein structure.
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