Science Quiz on Elements and Biology

Noble Gases

• Noble gases are non-reactive elements found in Group 18 of the periodic table.
• Under standard conditions (1 atm pressure and 0°C), helium, neon, argon, krypton, xenon, and radon qualify as noble gases.

Doppler Effect

• The apparent change in frequency of a wave as observed when the source and observer are in relative motion is called the Doppler Effect.
• This phenomenon affects sound waves, light waves, and other types of waves, causing a shift toward higher or lower frequencies.

Energy Production in Stars

• Nuclear fusion is the primary process responsible for energy production in stars.
• In this process, lighter atomic nuclei combine to form heavier nuclei, releasing vast amounts of energy in the form of heat and light.

Meiosis and Crossing Over

• The primary purpose of crossing over during meiosis is to increase genetic diversity in gametes.
• This process involves the exchange of genetic material between homologous chromosomes, leading to new combinations of alleles.

Biological Macromolecules

• DNA (deoxyribonucleic acid) is the biological macromolecule primarily responsible for the storage of genetic information.
• DNA's structure consists of two strands forming a double helix, containing sequences of nucleotides that encode genetic instructions for the development and functioning of living organisms.