Ques: Answer the following question given this paragraph: In a pedigree, squares symbolize males, and circles represent females. A horizontal line joining a male and female indicates that the couple had offspring. Vertical lines indicate offspring which are listed left to right, in order of birth. Shading of the circle or square indicates an individual who has the trait being traced. The inheritance of the recessive trait is being traced. A is the dominant allele and a is recessive. An "affected" individual has the trait or characteristic (or disease) in question. Q: In a pedigree what shape symbolizes males? Choices: - spheres - rectangles - triangles - squares A:
Ans: squares

Ques: Answer the following question given this paragraph: Watch this animation (http://openstaxcollege. org/l/p53_cancer) to learn more about the use of p53 in fighting cancer. Proto-oncogenes are positive cell-cycle regulators. When mutated, proto-oncogenes can become oncogenes and cause cancer. Overexpression of the oncogene can lead to uncontrolled cell growth. This is because oncogenes can alter transcriptional activity, stability, or protein translation of another gene that directly or indirectly controls cell growth. An example of an oncogene involved in cancer is a protein called myc. Myc is a transcription factor that is aberrantly activated in Burkett's Lymphoma, a cancer of the lymph system. Overexpression of myc transforms normal B cells into cancerous cells that continue to grow uncontrollably. High B-cell numbers can result in tumors that can interfere with normal bodily function. Patients with Burkett's lymphoma can develop tumors on their jaw or in their mouth that interfere with the ability to eat. Q: Proto-oncogenes are positive cell-cycle regulators but when mutated, they can become what? Choices: - microbes and cause cancer - bacteria and cause cancer - cultigens and cause cancer - oncogenes and cause cancer A:
Ans: oncogenes and cause cancer

Ques: Answer the following question given this paragraph: Biochemical compounds make up the cells and tissues of living things. They are also involved in all life processes. Given their diversity of functions, it's not surprising that there are millions of different biochemical compounds. Even so, all biochemical compounds can be grouped into just four main classes: carbohydrates, proteins, lipids, and nucleic acids. The classes are summarized in Table below . Q: What type of compounds make up the cells and tissues of living things? Choices: - hormonal - microbial - proximal - biochemical A:
Ans: biochemical

Ques: Answer the following question given this paragraph: Steam actually consists of tiny droplets of liquid water. What you can't see in the picture is the water vapor that is also present in the air above the spring. Water vapor is water in the gaseous state. It constantly rises up from the surface of boiling hot water. Why? At high temperatures, particles of a liquid gain enough energy to completely overcome the force of attraction between them, so they change to a gas. The gas forms bubbles that rise to the surface of the liquid because gas is less dense than liquid. The bubbling up of the liquid is called boiling. When the bubbles reach the surface, the gas escapes into the air. The entire process in which a liquid boils and changes to a gas that escapes into the air is called vaporization . You can watch an animation of the process at this URL: http://www. visionlearning. com/img/app/library/objects/Flash/VLObject-321-030317040343. swf. Q: Steam actually consists of tiny droplets of liquid what? Choices: - lead - methane - mercury - water A:
Ans:
water