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Genetic Code Answers

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41
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Which element is most important for adding strength to hair, feathers, and outer skin?

A
oxygen
B
hydrogen
C
sulfur
D
phosphorus
42
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The graph below shows the light absorbance of two kinds of chlorophyll.Which color of light does chlorophyll b absorb more of than any other color?

Question illustration
A
red
B
yellow
C
green
D
blue
43

A student constructs a Venn diagram to compare the organelles in plant and animal cells.Venn Diagram of Plant and Animal CellsWhich organelle should be listed under “Animal Only” in the diagram?

Question illustration
A
nucleus
B
centriole
C
ribosome
D
cell wall
44

What observation led researchers to propose that chloroplasts evolved from cyanobacteria?

A
Both produce proteins.
B
Both contain mitochondria.
C
Both provide structure to cells.
D
Both perform photosynthesis.
45

Which conversion is the result of aerobic cellular respiration?

A
glucose to ATP
B
ATP to glucose
C
glucose to glycogen
D
glycogen to lactic acid
46

Which statement correctly distinguishes photosynthesis and respiration?

A
Photosynthesis occurs in animal cells and not plant cells.
B
Cellular respiration occurs in animal cells and not plant cells.
C
Photosynthesis uses chemical energy as energy source, and cell respiration uses light energy.
D
Photosynthesis uses light as energy source, and cell respiration uses chemical energy.
47

In which series are the stages of interphase in the correct order?

A
G1 phase, G2 phase, S phase
B
G2 phase, G1 phase, S phase
C
G0 phase, S phase, G2 phase
D
G1 phase, S phase, G2 phase
48

Chemicals used in chemotherapy treatments to fight cancer can also harm cells in hair follicles and bone marrow. What characteristic do these cells most likely share with cancerous cells?

A
They form tumors.
B
They spread through the blood.
C
They divide rapidly.
D
They contain a mutation.
49

Which substance is a nucleic acid?

A
amino acid
B
fat
C
polysaccharide
D
RNA
50

What is/are the function(s) of the cell cycle?

A
DNA replication
B
development of positive mutations
C
prevention of cancer
D
growth, repair, and reproduction of cells

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