*Question*
Q: This knocks electrons from atoms and turns them into ions? Read this paragraph and choose the correct option from the provided answers: Long-term or high-dose exposure to radiation can harm both living and nonliving things. Radiation knocks electrons out of atoms and changes them to ions. It also breaks bonds in DNA and other compounds in living things. One source of radiation that is especially dangerous to people is radon. Radon is a radioactive gas that forms in rocks underground. It can seep into basements and get trapped inside buildings. Then it may build up and become harmful to people who breathe it. Long-term exposure to radon can cause lung cancer. Choices: - convection - chemical reactions - evaporation - radiation A:
**Answer**
radiation

*Question*
Q: What is the atomic number? Read this paragraph and choose the correct option from the provided answers: In the modern periodic table, elements are organized by atomic number. The atomic number is the number of protons in an atom of an element. This number is unique for each element, so it seems like an obvious way to organize the elements. (Mendeleev used atomic mass instead of atomic number because protons had not yet been discovered when he made his table. ) In the modern table, atomic number increases from left to right across each period. It also increases from top to bottom within each group. How is this like Mendeleev's table?. Choices: - Number of electrons - Speed of electrons - Number of neutrons - number of protons A:
**Answer**
number of protons

*Question*
Q: What is the testing for disease in a fetus or embryo? Read this paragraph and choose the correct option from the provided answers: Consultations with human geneticists and genetic counselors are an important first step in genetic testing. They will most likely prescribe some sort of prenatal screening (see the Human Genetics: Diagnosis and Treatment (Advanced) concept). Prenatal screening (also known as prenatal diagnosis or prenatal testing) is the testing for diseases or conditions in a fetus or embryo before it is born. Methods may involve amniocentesis or chorionic villus sampling to remove fetal cells. DNA can be isolated from these cells and analyzed. If the mutation that results in the phenotype is known, that specific base can be analyzed, either through restriction fragment length polymorphism analysis or, more likely, through PCR and DNA sequence analysis. As it is the baby's DNA that is being analyzed, the analysis will determine if the developing baby will have the mutation and develop the phenotype, or not have the mutation. Parents can then be informed of the probability of the baby developing the disease. Choices: - complete screening - placental screening - dynamic screening - prenatal screening A:
**Answer**
prenatal screening

*Question*
Q: Amides are actually formed by bringing together an amine-containing molecule and molecule containing what? Read this paragraph and choose the correct option from the provided answers: Amides are actually formed by bringing together an amine-containing molecule and a carboxylic acidcontaining molecule. A molecule of H2O is lost, much like when an ester forms:. Choices: - oxidize acid - polymer acid - Fatty acid - carboxylic acid A:
**Answer**
carboxylic acid