Biology End of Course Exam

DNA serves as a template for providing instructions that code for genes in living organisms. Which component of DNA is responsible for the diversity of genes?

• the strength of hydrogen bonds

• the addition of phosphate groups

• the variety of nitrogenous bases

Tags

NGSS.MS-LS4-4

Carbon dioxide is taken in during the process of photosynthesis. What happens to the carbon from carbon dioxide during photosynthesis?

• It combines with other elements to create a gas that is essential for plant survival.

• It combines with other elements to create a liquid that is essential for plant survival.

• It combines with other elements to create a sugar that is essential for plant survival.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Energy is transformed during photosynthesis through the breaking and forming of bonds. Using the diagram from the passage, which BEST describes how energy is transformed during photosynthesis?

• Stored chemical energy in the plant is transformed into light energy in the Sun.

• Stored chemical energy in the Sun is transformed into light energy in the plant.

• Light energy in the plant is transformed into stored chemical energy in the Sun.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which mouse fur color is MOST LIKELY the dominant trait?

• Grey, because there is a lower probability of a mouse presenting the grey fur phenotype.

• Grey, because there is a higher probability of a mouse presenting the grey fur phenotype.

• Black, because there is a lower probability of a mouse presenting the black fur phenotype.

• Black, because there is a higher probability of a mouse presenting the black fur phenotype.

Tags

NGSS.MS-LS4-4

If the grey mouse from the offspring of Cross Two bred with another grey mouse, what is the MOST LIKELY probability of fur colors in the offspring?

• 100% grey fur

• 100% black fur

• 75% grey fur and 25% black fur

• 50% grey fur and 50% black fur

Tags

NGSS.MS-LS3-2

Which statement explains why the structure of sickle cells differs from normal red blood cells?

Tags

NGSS.MS-LS3-1

A scientist is investigating two proteins. The first protein has a sequence of 20 amino acids. The second protein also has a sequence of 20 amino acids, but they are in a different order. Which BEST explains what the scientist will observe?

Tags

NGSS.MS-LS3-1

Which BEST describes why certain traits led to an increased frequency within the population of medium ground finches?

Tags

NGSS.MS-LS4-4

Why is cellular respiration needed for the human body?

Tags

NGSS.MS-LS1-7

Which BEST describes what happens to the glucose that is taken in when humans eat?

Tags

NGSS.MS-LS1-7