Examius
🇮🇳 NDA Examination · flashcards
NDA Examination General Science and Biology (General Ability Test) Flashcards
51 question-and-answer cards covering General Science and Biology (General Ability Test) as it is examined in NDA Examination. 24 of them are printed below, taken from across the deck — no signup, no paywall on the preview.
24 sample cards from the General Science and Biology (General Ability Test) deck
Sampled from the end of the deck, so these are different cards from the ones shown on the syllabus page.
Which deficiency disease is caused by lack of Vitamin C and what are its symptoms?
Scurvy; symptoms include bleeding/swollen gums, weakness, and slow wound healing. Vitamin C is ascorbic acid.
What disease results from Vitamin D deficiency and what is its main function?
Rickets (in children) and osteomalacia (in adults). Vitamin D aids absorption of calcium and phosphorus for strong bones.
Which vitamin deficiency causes night blindness and what is the vitamin's chemical name?
Vitamin A (retinol) deficiency causes night blindness; it is needed for healthy vision and skin.
What deficiency causes Beri-beri and which vitamin is responsible?
Beri-beri is caused by deficiency of Vitamin B1 (Thiamine), affecting the nervous and cardiovascular systems.
Which mineral deficiency causes goitre, and which gland is affected?
Iodine deficiency causes goitre (enlargement of the thyroid gland), as iodine is needed to make thyroid hormones.
What is the difference between asexual and sexual reproduction?
Asexual reproduction involves a single parent and produces genetically identical offspring (no gametes); sexual reproduction involves two parents and gametes, producing genetically varied offspring.
Name three methods of asexual reproduction in plants/organisms.
Binary fission (Amoeba), budding (Hydra, yeast), fragmentation (Spirogyra), spore formation (fungi), and vegetative propagation (potato, ginger).
What is pollination and what are its two types?
Pollination is the transfer of pollen from anther to stigma. Self-pollination (same flower/plant) and cross-pollination (between different plants).
What are the male and female reproductive parts of a flower?
Male part: Stamen (anther + filament). Female part: Pistil/Carpel (stigma + style + ovary).
In humans, where does fertilization occur and where does the embryo develop?
Fertilization occurs in the fallopian tube (oviduct); the embryo develops in the uterus (womb).
Who is known as the 'Father of Genetics' and what organism did he study?
Gregor Mendel; he studied inheritance in pea plants (Pisum sativum) and formulated the laws of inheritance.
State Mendel's Law of Segregation.
During gamete formation, the two alleles of a gene separate (segregate) so that each gamete carries only one allele for each trait.
How many chromosomes are present in a normal human body cell?
46 chromosomes (23 pairs), including one pair of sex chromosomes (XX in females, XY in males).
What determines the sex of a child in humans, and how?
The father's sperm determines sex: an X-carrying sperm gives a girl (XX), a Y-carrying sperm gives a boy (XY). The mother always contributes an X.
What is the difference between genotype and phenotype?
Genotype is the genetic makeup (set of alleles, e.g., Tt); phenotype is the observable physical characteristic (e.g., tall plant).
Who proposed the Theory of Evolution by Natural Selection?
Charles Darwin, in his book 'On the Origin of Species' (1859). His theory is summarized as 'survival of the fittest'.
What is Lamarck's theory of evolution called?
The theory of 'Inheritance of Acquired Characters' (use and disuse of organs), proposed by Jean-Baptiste Lamarck.
Name three great scientists and their major contributions.
Isaac Newton - laws of motion and gravitation; Albert Einstein - theory of relativity (E=mc²); C.V. Raman - Raman effect (Nobel Prize 1930).
Which Indian scientist is credited with discovering that plants have life and feelings, and what device did he invent?
Jagadish Chandra Bose; he invented the crescograph to measure plant growth and responses.
Name the eight planets of the Solar System in order from the Sun.
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune. (Pluto is now a dwarf planet.)
Which is the largest planet and which is the smallest planet in the Solar System?
Largest planet: Jupiter; Smallest planet: Mercury.
What is a light year and is it a unit of distance or time?
A light year is the distance light travels in one year (about 9.46 trillion km); it is a unit of distance, not time.
What was India's first satellite and which organization launched the Mars Orbiter Mission (Mangalyaan)?
India's first satellite was Aryabhata (1975). The Mars Orbiter Mission (Mangalyaan, 2013) was launched by ISRO, making India the first country to reach Mars orbit on its first attempt.
Name a recent Indian space and a defence missile achievement.
Chandrayaan-3 (2023) achieved a soft landing near the Moon's south pole; Agni and BrahMos are key indigenous missiles. BrahMos is a supersonic cruise missile developed jointly by India and Russia.
What this deck covers
The General Science and Biology (General Ability Test) deck follows the NDA Examination General Science and Biology (General Ability Test) syllabus — 4 chapters and 14 topics — so questions land on material that is genuinely examinable rather than trivia around it. That works out to roughly 12.8 cards per chapter.
Answers are written to be recallable, not just readable — averaging about 122 characters, which is long enough to carry the reasoning and short enough to say out loud.
A deck like this earns its keep on the second and third pass. Read the syllabus first so you know the shape of the subject, then use the cards to find the specific facts that have not stuck.
General Science and Biology (General Ability Test) flashcards FAQ
How many General Science and Biology (General Ability Test) flashcards are in this NDA Examination deck?
51 cards. This page previews 24 of them, sampled evenly across the deck so you can judge the difficulty before installing anything.
Are these NDA Examination flashcards free?
Yes. The preview here is free to read with no signup, and the full 51-card deck is free inside the Examius app.
What do the General Science and Biology (General Ability Test) cards cover?
They follow the NDA Examination General Science and Biology (General Ability Test) syllabus — 4 chapters and 14 topics — so the questions track what is actually examinable.
How should I use these flashcards?
Read the syllabus first so you know the shape of the subject, then drill the deck. Examius schedules each card with spaced repetition, so cards you keep missing come back sooner and ones you know drift further apart.