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- 1. Multiple Choice
Study the diagram.Based on the diagram, which statement is true?
Genes are made up of chromosomes.
Chromosomes contain a single gene.
Centromeres hold instructions for how to make proteins.
Genes are present on chromosomes and control traits in an individual.
- 2. Multiple Choice
The lightly shaded regions of a chromosome represent sections of DNA called genes. What type of information is encoded within genes?
Genes are sections of proteins that code for specific DNA sequences.
Genes are sections of proteins that code for specific cells.
Genes are sections of DNA that code for specific proteins.
Genes are sections of cells that code for specific proteins.
- 3. Multiple Choice
Examine the diagram.What is the correct description of the structure in the box labeled Z?
It is a protein, which is composed of amino acids, found on a chromosome.
It is a protein, which is composed of DNA, found only in asexually reproducing organisms.
It is a gene, which is composed of DNA, found on a chromosome.
It is a gene, which is composed of amino acids, found only in sexually reproducing organisms.
- 4. Multiple Choice
Most cells in the human body contain 23 pairs of chromosomes. The diagram represents human chromosome 7. Each lightly shaded band represents a section of DNA that is divided into numerous genes. Since a gene ultimately codes for protein production, what can be inferred from this diagram?
Chromosomes contain multiple genes that code for the production of several different types of proteins.
Chromosomes contain multiple genes that collectively code for the production of one specific protein.
Chromosomes contain a single gene split up into several sections, coding for the production of one specific protein.
Chromosomes contain a single gene split up into several sections, coding for the production of several different types of proteins.
- 5. Multiple Choice
The diagram shows relationships between certain structures within the cell. Which chart correctly identifies these structures and the relationships between them?
A
B
C
D
- 6. Multiple Choice
What is a disadvantage for organisms that reproduce asexually rather than sexually?
The offspring receive less genetic material.
The offspring take more time to grow and develop.
The offspring resemble the parent, which makes it difficult to distinguish them from each other.
The offspring are genetically identical to each other, which reduces their ability to adapt to any changes in the environment.
- 7. Multiple Choice
Which statement correctly describes a difference between asexual and sexual reproduction?
Asexually reproducing organisms do not have DNA, while sexually reproducing organisms have DNA.
Asexually reproduced offspring have less variety in their genetic information than sexually reproduced offspring.
Asexually reproduced offspring have the same amount of genetic information as the parent, while sexually reproduced offspring have half as much genetic information as a parent.
Asexual reproduction in organisms takes longer than sexual reproduction due to the time required to find a mate.
- 8. Multiple Choice
A student lists some characteristics of asexual reproduction in plants. Which characteristics did the student list correctly?
1 and 2
1 and 4
2 and 3
2 and 4
- 9. Multiple Choice
Use the model to answer the question.
Examine the model.Which process is shown in the model?
meiosis
metabolism
mitosis
mutation
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