Quizizz Week #35

Which change is an example of maintaining dynamic equilibrium?

• A plant wilts when more water is lost from the leaves than is lost by the roots.

• A plant turns yellow when light levels are very low.

• Insulin is released when glucose levels in the blood are high.

• A person sweats when the environmental temperature is low

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Which statement is an accurate description of genes?

• Proteins are made of genes and code for DNA.

• Genes are made of proteins that code for nitrogen bases.

• DNA is made of carbohydrates that code for genes.

• Genes are made of DNA and code for proteins.

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This bacterial cell can now be used to produce

• the bacterial gene for insulin that can be inserted into humans

• human genes for enzymes that can be inserted into humans

• insulin that can be used by humans

• enzymes necessary to treat human diseases

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The change observed in the number of green and brown beetles in the population is most likely due to

• natural selection

• gene manipulation

• selective breeding

• a common ancestor

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Several companies now offer DNA “banking services,” where DNA is extracted from a pet and is stored so that a “replacement pet” might be produced using cloning techniques when the original pet dies. Which statement best explains why the replacement pets that are produced in this way might not look or act like the original?

• The new animal must get the DNA from two different parents, not just one cell.

• Mutations could occur that change the cloned animal into a completely different species.

• Recombination of the cells as they are cloned will make the resulting pet act differently.

• The environment could influence how genes are expressed, changing how the animal looks and acts.

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It is recommended that people avoid excessive use of tanning beds. Exposure to the radiation emitted by tanning beds can cause skin cancer. This cancer is the direct result of a

• change in a starch molecule

• mutation in the genetic material

• mutation in a protein

• change in a fat molecule

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The clover plant having gene 2 (4 leaves) was most likely the result of

• an insertion

• a substitution

• a deletion

• normal replication

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Which population in the chart below has the best chance for survival in a rapidly changing environment?

• 1

• 2

• 3

• 4

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Which statement best describes a change that would most likely be observed in the cells formed as a result of this mitotic division?

• An enzyme the cell produces might no longer function.

• The cells would begin to form gametes to be released.

• Many new hormones would be synthesized by the cells.

• Chloroplasts would be produced by the ribosomes.

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A Chihuahua is born having a trait that is different from either of its parents. A possible explanation for the difference is that the Chihuahua puppy

• was produced as a result of the recombination of genes during sexual reproduction

• was produced as a result of the process of asexual reproduction

• inherited a gene from one of its grandparents and not its parents

• had a mutation that occurred after it was born

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