Answer in one sentence. 1. What is gamete formation?Ans. Gamete formation is a process in which haploid gametes are formed by meiotic division. 2. Write the types of twins.Ans. Dizygotic and monozygotic twins. 3. Write any two- Sexually transmitted diseases.Ans. Syphilis, AIDS. 4. What determines whether the two organisms of a species will be exactly […]
Question 1 B) VIII. Answer in one sentence. Read More »
Define. 1. TranslationAns. Translation is the process by which tRNA having anticodon to the codon on the mRNA, supplies amino acids, as per the message on mRNA. 2. TranslocationAns. The movement of ribosome from one end of the mRNA to the other end by the distance of one triplet codon during translation is known as
Q.1-B) VII. Define. Read More »
Match the following. Ans. 1) Morphological evidences — Leaf venation2) Paleontological evidences — Fossils Ans. 1) Polluting energy — thermal energy2) Environment friendly energy — wind energy Ans. 1) sunlight — Environment friendly energy2) Natural gas — Fossil fuel Ans. 1. Aspartame — Sweetener2. Fermentation — anaerobic respiration3. Niacin — microbial restrictor4. Essence — Vanillin Ans.
Q 1 B) VI. Match the following Read More »
Take Quiz to Perfect Your True or False TRUE OR FALSE QUIZ Write whether true or false. 1. The decaying process of c-14 occurs continuously in dead organisms only.Ans. True 2. Prokaryotic cells divide through mitosis or meiosis.Ans. False 3. Pollen tube reaches the embryo sac via style.Ans. True 4. Sometimes twins are genetically different.Ans.
Q 1 B) V. Write whether true or false. Read More »
Write the functions of : 1. GeneratorAns. Generator is a machine that generates electrical energy. 2. TurbineAns. Turbine is used to rotate the magnet in the generator. 3. CondenserAns. A condenser is used to convert steam back to water by cooling it.
Q 1 B) IV. Write the function of Read More »
Que 2 B) VII. Complete flow chart given below ( 2m each) Ans. Ans. Ans.
Que 2 B) VII. Complete flow chart given below ( 2m.each) Read More »
Que.2 B) VI. Draw a neat labelled diagram. ( 2m each.) 1) Magnetic separation methodAns. 2) Froth flotationAns. 3) Electrolysis reduction of aluminaAns. 4) Hydraulic separation methodAns. 5) Electroplating (electrolysis)Ans. 6) AnodizingAns.
Que.2 B) VI. Draw a neat labelled diagram. ( 2m each.) Read More »
Que 2 B) V. Explain concept with example / explain with the help of balanced equation. (Each 2 m) 1. Ionic bond and ionic compoundsAns.(1) The compounds formed from two units, namely cation and anion are called ionic compounds.(2) The cation and anion being oppositely charged, there is an electrostatic force of attraction between them.
Que 2B) III.write short notes. (2m each) 1. Sodium burns in airAns. On burning, sodium metal combines with oxygen in the air to form sodium oxide. 2. Reaction of aluminium with oxygenAns. Aluminium combines with oxygen to form aluminium oxide. 3. Magnesium reacts with dil HClAns. When magnesium is treated with dilute hydrochloric acid, it
Que 2B) IV. Explain the following reactions with the balanced equations. (2 marks each) Read More »
Que 2B) III.write short notes. (2m each) 1. Escape VelocityAns.(1) The minimum velocity with which a body should be projected from the surface of a planet or moon, so that it escapes from the gravitational influence of the planet or moon is called as escape velocity.(ii) Escape velocity is given as, , where M is mass
Que. 2B) III. Write short notes. (2m each) Read More »
