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Genetics
Test Description: Purposes of cell division.
Instructions: Answer all questions to get your test result.
1) Jack bought a small turtle. Three months later, the turtle had grown to twice its original size. Which of the following statements best describes why Jack’s turtle got bigger?
A
Parts of the turtle stretched out as it grew larger.
B
The size of each cell in the turtle’s body got bigger as it got older.
C
The turtle’s body absorbed the food it ate and water it drank.
D
The number of cells in the turtle’s body increased.
2) Genetic engineering in corn allows genes from bacteria to be added to the genetic material of corn. What is one risk of genetically engineering corn plants?
A
decreases the amount of pesticide needed to grown corn.
B
decreases the number of corn plants a farmer can grow in a season
C
increases the chance of adding a trait to corn that causes allergies
D
increases the length of time corn can be stored before it rots
3) How did the work of Gregor Mendel change the scientific explanation about how traits were inherited?
A
Mendel showed that an organism contains miniature forms of its future offspring.
B
Mendel showed that every trait is controlled by two inherited elements.
C
Mendel showed that traits skip a generation and are inherited grandparent to grandchild.
D
Mendel showed that tiny particles from every part of the body of each parent became blended.
4) Which is the best example of cell division for the purpose of repair?
A
New skin forms at the site of a wound.
B
Cells of an embryo multiply after fertilization.
C
Lung cells multiply as lungs grows larger.
D
Bacterial cells divide in a moist environment.
5) What is the purpose of mitosis in unicellular organisms?
A
reproduction of the organism
B
repair of damaged organelles
C
communication between organelles
D
destruction of foreign invaders
6) Which is the best example of cell division for the purpose of reproduction?
A
bone cells dividing
B
skin cells dividing
C
algae cells dividing
D
brain cells dividing
7) Where in the body does meiosis take place?
A
skin
B
ovaries
C
brain
D
kidneys
8) What is the purpose of meiosis in multicellular organisms?
A
reproduction
B
cell growth
C
immunity
D
communication
9) What is a purpose of mitosis in multicellular organisms?
A
replacement of dead cells
B
production of sugars
C
exchange of gases
D
reproduction of the organism
10) What is a purpose of cell division?
A
replacement of older cells
B
storage of wastes
C
transport of chemical signals
D
repair of a cell's genes
*select an answer for all questions
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