Molecular Genetics Pre-assessment (Grade 7)
Molecular Genetics Pre-Assessment (Grade 7)
- 1.
In the diagram below, which letter indicates a section of the molecule that includes all the components of a nucleotide (Standard 2.1 f)?- A.
1
- B.
2
- C.
4
- D.
4
- E.
None of the Above
- 2.The presence of DNA is important for cellular metabolic activities because DNA (Standard 2.1g)
- A.
Directs the production of enzymes
- B.
Is a structural component of cell walls
- C.
Directly increases the solubility of nutrients
- D.
Is the major component of cytoplasm
- E.
Is a direct source of energy
- 3.Protein has a great potential for variation of structure because (Standard 2.1i)
- A.
Monosaccharides have many different structures
- B.
Many amino acids may combine in a number of ways
- C.
Different amino acids occur in pairs
- D.
Fatty acids may vary
- E.
Number of chromosomes vary from cell to cell
- 4.Mutations can be transmitted to the next generation only if they are present in (Standard 2.1h):
- A.
Brain cells
- B.
Body cells
- C.
Sex cells
- D.
Muscle cells
- E.
T cells
- 5.
The structure and location of a cellular component is represented in the diagram shown. The polymer in the diagram most likely contains (Standard 2.1j):
- A.
Adenosine triphosphate
- B.
Genes
- C.
Lipids
- D.
Hydrolytic enzymes
- E.
Organelles
- 6.Which statement is true (Standard 2.1k)?
- A.
Every cell in the body is genetically different from each other
- B.
Stem cells contain genes that are different from differentiated cells
- C.
Monozygotic twins have different genotypes
- D.
Muscle cells and nerve cells contain different genes
- E.
Muscle cells and nerve cells contain the same genes
- 7.Sometimes a section of a chromosome is lost during meiosis. This loss results in a change in genetic material known as (Standard 2.2d):
- A.
Deletion
- B.
Replication
- C.
Crossing over
- D.
Polyploidy
- E.
Point mutation
- 8.
Based on the gel electrophoresis diagram below, which statement is most likely true:
- A.
Suspect 1 is most likely to have committed the crime
- B.
Suspect 2 is most likely to have committed the crime
- C.
Both Suspect 1 and Suspect 2 likely worked together to commit the crime
- D.
The victim is lying and both Suspect 1 and Suspect 2 are innocent
- E.
There is not enough information to determine which of the two suspects is more likely guilty
- 9.A woman has a gene that causes a visual disorder. To prevent the gene from appearing in future generations, the defective gene would have to be repaired in the mother's (Standard 5.2h):
- A.
Eye
- B.
Uterus
- C.
Nervous system
- D.
Reproductive cells
- E.
Epidermal cells
- 10.A mutagen implicated in cancer is (Standard 5.2i):
- A.
A restriction enzyme
- B.
Bacteria
- C.
Caffeine
- D.
Ultraviolet light
- E.
A vector
- 11.Rate, on a scale of 1 – 4, 1 being the lowest and 4 being the highest, how much you already know about molecular genetics.
- 12.Rate, on a scale of 1 – 4, 1 being the lowest and 4 being the highest, how interested are you in molecular genetics.
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