Answer the following question given this paragraph: The most common type of cancer in adult females is cancer of the breast. About one third of all cancers in women are breast cancers. Q: What is the most common type of cancer in adult females? Choices: - skin - bone - lung - breast A:
breast
(Question)
Answer the following question given this paragraph: Eukaryotic cells also contain other organelles besides the nucleus. An organelle is a structure within the cytoplasm that performs a specific job in the cell. Organelles called mitochondria, for example, provide energy to the cell, and organelles called vacuoles store substances in the cell. Organelles allow eukaryotic cells to carry out more functions than prokaryotic cells can. Q: What is the term for a structure within the cytoplasm that performs a specific job in the cell? Choices: - mitochondria - nucleus - ribosome - organelle A:
(Answer)
organelle
Ques: Answer the following question given this paragraph: An amino acid is a compound that contains both an amino group (NH 2 ) and a carboxyl group (COOH) in the same molecule. While any number of amino acids can possibly be imagined, biochemists generally reserve the term for a group of 20 amino acids which are formed and used by living organisms. The Figure below shows the general structure of an amino acid. Q: What do you call a compound that contains both an amino group and a carboxyl group in the same molecule? Choices: - carbolic acid - compound acid - catalyst - amino acid A:
Ans: amino acid
(Q).
Answer the following question given this paragraph: Q: What are lipopolysaccharide components of the outer membrane of gram-negative bacteria? Choices: - hormones - pathogens - reactants - endotoxins A:
(A).
endotoxins
Ques:Answer the following question given this paragraph: Chromosome Structural Rearrangements Cytologists have characterized numerous structural rearrangements in chromosomes, including partial duplications, deletions, inversions, and translocations. Duplications and deletions often produce offspring that survive but exhibit physical and mental abnormalities. Cri-du-chat (from the French for "cry of the cat") is a syndrome associated with nervous system abnormalities and identifiable physical features that results from a deletion of most of the small arm of chromosome 5 (Figure 7.11). Infants with this genotype emit a characteristic high-pitched cry upon which the disorder's name is based. Q: Structural rearrangements of what include partial duplications, deletions, inversions, and translocations; duplications and deletions often produce offspring that survive but exhibit physical and mental abnormalities? Choices: - neutrons - phenotypes - cells - chromosomes A:

Ans:chromosomes
Answer the following question given this paragraph: Learn some applications of radioactivity. Radioactive isotopes have a variety of applications. Generally, however, they are useful because either we can detect their radioactivity or we can use the energy they release. Radioactive isotopes are effective tracers because their radioactivity is easy to detect. A tracer is a substance that can be used to follow the pathway of that substance through some structure. For instance, leaks in underground water pipes can be discovered by running some tritium-containing water through the pipes and then using a Geiger counter to locate any radioactive tritium subsequently present in the ground around the pipes. (Recall that tritium is a radioactive isotope of hydrogen. ) Tracers can also be used to follow the steps of a complex chemical reaction. After incorporating radioactive atoms into reactant molecules, scientists can track where the atoms go by following their radioactivity. One excellent example of this is the use of carbon-14 to determine the steps involved in. Q: What is the name for a substance that can be used to follow the pathway of that substance through some structure? Choices: - gel - tracker - solution - tracer A:
tracer