Science Notes

VIRUS 🦠🦠🦠🦠 Some virus related MCQ with answers  1. ** Which of the following is a characteristic of a lytic cycle in viruses?    a) Integration into the host genome    b) Production of viral particles inside the host cell    c) Host cell remains alive    d) Formation of a latent infection    - ** Answer:** b) Production of viral particles inside the host cell 2. * *HIV targets which type of cells in the human body?    a) Red blood cells    b) Neurons    c) T-helper cells    d) Platelets    - ** Answer:** c) T-helper cells 3. ** Which of the following is NOT a way viruses can be transmitted ?    a) Direct contact    b) Contaminated water    c) Genetics    d) Airborne droplets    - ** Answer:** c) Genetics 4. ** Which virus is responsible for causing chickenpox?    a) Varicella-zoster virus    b) Epstein-Barr vir...

HUMAN BRAIN 🧠🧠🧠🧠🧠🧠 Human brain related questions:::: 1. ** Question:** What is the primary function of the cerebrum in the human brain?    **Answer:** The cerebrum is responsible for higher brain functions, including thought, action, and sensory processing. It is divided into four lobes: frontal, parietal, temporal, and occipital, each of which has specialized functions. 2. ** Question:** What is the mechanism of brain-to-body communication ?    **Answer:** The brain communicates with the rest of the body through the nervous system, using neurons to send and receive electrical signals. These signals are transmitted via the spinal cord and peripheral nerves to muscles and organs. 3 ** ** Question:** How does the amygdala function?   **Answer:** The amygdala is involved in processing emotions, such as fear, pleasure, and anger. It plays a key role in forming and storing emotional memories. 4. ** Question:** How does the prefrontal ...

MAGNET MCQ (GOVT JOBS) MAGNET   An item or substance that generates a magnetic field is called a magnet. This magnetic field is invisible but is responsible for the most notable property of a magnet: a force that attracts or repels other magnetic materials, such as iron. Magnets have two poles, typically referred to as the north (N) and south (S) poles.  Magnets can be naturally occurring, like lodestone, or they can be manufactured. They come in various types, including: 1. ** Permanent Magnets **:Over time, these hold onto their magnetic qualities. Neodymium, samarium-cobalt, and ferrite are typical materials.  2. ** Temporary Magnets* *: When placed in a strong magnetic field, these behave like permanent magnets; but, when the field is withdrawn, they become less magnetic. 3. ** Electromagnets **: These are created by running an electric current through a coil of wire, often wrapped around a core made of a magnetic material like iron. The magnetic field van...

Mathematics part 1 Here are **ten** math questions along with their answers: 1 .**50 times 8 is equal to:**    - A) 80    - B) 400    - C) 800    - D) 4000    - **Answer: B** 2. **110 divided by 10 is:**    - A) 11    - B) 10    - C) 5    - D) None of these    - **Answer: A** 3. **20 + (90 ÷ 2) is equal to:**    - A) 50    - B) 55    - C) 65    - D) 60    - **Answer: C** 4. **Find the missing terms in the multiple of 3: 3, 6, 9, __, 15**    - A) 10    - B) 11    - C) 12    - D) 13    - **Answer: C** 5 **Solve 24 ÷ 8 + 2.**    - A) 5    - B) 6    - C) 8    - D) 12    - **Answer: A** 6. **Solve: 300 – (150 × 2)**    - A) 150    - B) 100    - C) 50    - D) 0    - **Answer: D** 7. **The product o...

Electron (All Govt Jobs MCQ) ELECTRON  A subatomic particle having a negative electric charge is called an electron.It is one of the fundamental constituents of matter, primarily found in the electron cloud surrounding the nucleus of an atom. Electrons are much lighter than protons and neutrons, with a mass approximately 1/1836 that of a proton. In atoms, electrons occupy discrete energy levels or orbitals, and their arrangements determine the chemical properties of elements. Electrons can also exist as free particles, and their behavior is described by quantum mechanics, exhibiting both particle-like and wave-like properties. Sure, let's dive deeper into the details about electrons: 1. Basic Properties :    - ** Charge **: An electron carries a fundamental unit of negative charge, denoted as \( -1e \), where \( e \) is the elementary charge (approximately \( -1.602 \times 10^{-19} \) coulombs).    - ** Mass **: The mass of an electron is approximately...