Q: Which kind of mutations have the most dramatic effect on proteins? Read this paragraph and choose the correct option from the provided answers: These mutations may result in a protein with the same function, with altered function, or with no function. Silent mutations , as they code for the same amino acid, will have no altered effect on the protein. Missense mutations may have a minor effect or a dramatic effect on the protein. Nonsense mutations usually have the most dramatic effet. Depending on the position of the premature stop codon, nonsense mutations may result in an unstable mRNA that cannot be translated, or in a truncated mRNA and a much "smaller" protein without any significant activity. Choices: - arbitrary mutations - sight mutations - cancerous mutations - nonsense mutations A:
nonsense mutations

(Question)
Q: The fight or flight response and similar responses are controlled by what part of the nervous system? Read this paragraph and choose the correct option from the provided answers: Image copyright CREATISTA, 2014. The autonomous nervous system controls responses such as fight or flight . Used under license from Shutterstock. com. Choices: - cells - spinal cord - central nervous system - autonomous A:
(Answer)
autonomous

Ques: Q: What is the general composition of the continental crust? Read this paragraph and choose the correct option from the provided answers: The average composition of continental crust is granite. Choices: - limestone - marble - sandstone - granite A:
Ans: granite

(Q).
Q: Changes of state of matter do not involve what type of reaction? Read this paragraph and choose the correct option from the provided answers: Not all changes in matter involve chemical reactions. For example, there are no chemical reactions involved in changes of state. When liquid water freezes or evaporates, it is still water. No bonds are broken and no new products are formed. Choices: - gaseous reaction - radiation - mechanical reaction - chemical reaction A:
(A).
chemical reaction

Ques:Q: What is the region in the center back of the eye that is responsible for acute vision? Read this paragraph and choose the correct option from the provided answers: The fovea is the region in the center back of the eye that is responsible for acute vision. The fovea has a high density of cones. When you bring your gaze to an object to examine it intently in bright light, the eyes orient so that the object's image falls on the fovea. However, when looking at a star in the night sky or other object in dim light, the object can be better viewed by the peripheral vision because it is the rods at the edges of the retina, rather than the cones at the center, that operate better in low light. In humans, cones far outnumber rods in the fovea. Choices: - cornea - lens - pupil - fovea A:

Ans:fovea

Ques:Q: Fats are also called triacylglycerols or triglycerides because of their what? Read this paragraph and choose the correct option from the provided answers: During this ester bond formation, three water molecules are released. The three fatty acids in the triacylglycerol may be similar or dissimilar. Fats are also called triacylglycerols or triglycerides because of their chemical structure. Some fatty acids have common names that specify their origin. For example, palmitic acid, a saturated fatty acid, is derived from the palm tree. Arachidic acid is derived from Arachis hypogea, the scientific name for groundnuts or peanuts. Fatty acids may be saturated or unsaturated. In a fatty acid chain, if there are only single bonds between neighboring carbons in the hydrocarbon chain, the fatty acid is said to be saturated. Saturated fatty acids are saturated with hydrogen; in other words, the number of hydrogen atoms attached to the carbon skeleton is maximized. Stearic acid is an example of a saturated fatty acid (Figure 3.14). Choices: - atomic number - chemical weight - elemental type - chemical structure A:

Ans:
chemical structure