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WorksheetsTest: Biotechnology
Total questions: 20
Worksheet time: 18mins
What determines the function of a specialized cell?
the type of RNA in the cell
the number of ribosomes in the cell
the number of chromosomes in the cell
the active genes in the cell
Which would be a desirable trait scientists may want to create in a transgenic plant?
the ability to resist insects
the ability to grow less fruit
the ability to change color in the winter
the ability to use a lot of water
The diagram shows a variety of cells from the same organism. How can cells from the same organism have such different shapes and functions?
As each cell differentiates, the DNA changes so that each type of cell has different DNA once it reaches maturity.
Mutations in the cells’ nuclei lead to new combinations of DNA, resulting in different shapes and functions in the different types of cells.
During differentiation, different parts of the DNA in each type of cell are activated, resulting in the different structure and function of the cells.
During differentiation, different types of cells produce proteins which destroy the non-active DNA, leading to cell specialization.-
What is the function of a restriction enzyme?
to control the movement of proteins into a cell
to regulate blood sugar levels
to produce hormones that regulate digestion
to cut DNA at a specific nucleotide sequence
Which is a use of genetically engineered bacteria?
identifying the remains of an unknown person
developing a DNA fingerprint for blood left at a crime scene
making human insulin for diabetics
producing corn that is resistant to herbicides
Which of these cells in the human body is specialized to transport oxygen throughout the body?
A
B
C
D
What process best explains how a nerve cell and a muscle cell can both develop from the same fertilized egg?
differentiation
natural selection
selective breeding
genetic engineering
Which technique would most likely be used by forensic scientists?
gene cloning
gene therapy
DNA fingerprinting
karyotyping
Which is one reason scientists produce transgenic organisms?
to create new species of organisms
to control microorganisms in the soil
to prevent habitats from being destroyed
to produce more nutritious and drought resistant crops
Which is a step in the process of producing transgenic bacteria?
A plasmid is used to replace a faulty gene in a human cell.
A chain of bacterial amino acids is inserted into human DNA.
A human gene is inserted into a bacterial plasmid.
A mutation is produced in a bacterial cell.
Two people believe they are related. Which would be the best technique to determine if they are related?
testing blood types
comparing DNA
examining karyotypes
testing for genetic disorders
Which of the following would be an advantage of genetically engineering disease-resistant crops?
Growing periods would decrease in most crops.
Harvest rates would decrease significantly, giving farmers less to do.
Crops could be grown only in certain climates and at certain times of the year.
Farmers could reduce the number of chemicals needed to control disease.
Which would be a reason why scientists would genetically engineer bacteria to produce human insulin?
Bacteria do not have their own genetic material.
Bacteria are living.
Bacteria are very small.
Bacteria reproduce quickly.
A student performed a gel electrophoresis experiment. The results are represented in the diagram
below. Compared to the fragments at the top of the gel, the fragments at the lower end are
larger, and move slower
larger, and move faster
smaller, and move faster
smaller, and move slower
The sequence of bases in the DNA is most important for which of the following?
Providing the instructions for the traits of an organism
Preventing mutations from occurring during DNA replication
Allowing the DNA to have the shape necessary for the replication
Helping form the sugar-phosphate backbone of DNA molecules
Provide one negative efffect of GMOs.
