Crossing over is essential for the normal segregation of chromosomes during meiosis. Crossing over also accounts for genetic variation, because due to the swapping of genetic material during crossing over, the chromatids held together by the centromere are no longer identical.
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Answer:
Nucleic Acids
Explanation:
Nucleic acids are made out of nucleotides and they come in two forms: Deoxyribonucleic Acid (DNA) and Ribonucleic Acid (RNA). DNA holds the code of life, in other words, it holds the code for making proteins that are essential in building cells, tissues, and organs. DNA is found in the nucleus of a cell.
Answer: The receptor site is the location that a drug binds to, altering the function of a biomolecule.
Explanation:
The drug receptors site, are the sites where the sites where the drug molecules bind. Basically, a low number of receptors exists and the extent to which the molecules occupy their sites differ with the concentration of drug. The receptor site changes the conformation and function of the binding molecule of the drug.
Answer: Equation for photosynthesis is carbon dioxide + water + sunlight→ Glucose + oxygen
In light dependent reactions, energy in form of solar energy is absorbed and converted to chemical energy.
Explanation: During photosynthesis, sunlight is absorbed by the light absorbing pigment called chlorophyll. The absorbed solar energy is converted into chemical energy using carbon dioxide and water as the starting materials with the release of oxygen. The equation is 6 CO2 + 6 H2O + solar energy --> C6H12O6 + 6O2.
Photosynthetic reactions are made up of two parts: the light dependent reactions and the carbon fixation reactions. In the light dependent reactions, chlorophyll and other photosynthetic pigments absorb light energy from the sun and conserve it as ATP and NADPH with a simultaneous release of oxygen. The carbon fixation reactions are driven by the products of the light dependent reactions.
