Comparing DNA

Which of the following correctly describes a structural difference between RNA and DNA?

• RNA contains the sugar deoxyribose, while DNA contains the sugar ribose.

• RNA is typically single-stranded, whereas DNA is double-stranded.

• RNA contains the base thymine, while DNA contains the base uracil.

• RNA and DNA both have the same sugar and base composition.

Which base pairs with adenine in DNA?

• Cytosine

• Guanine

• Thymine

• Uracil

Identify the sugar present in the structure of DNA.

• Ribose

• Deoxyribose

• Glucose

• Fructose

Which of the following base pairs is correct for DNA?

• Adenine - Uracil

• Guanine - Thymine

• Cytosine - Guanine

• Thymine - Uracil

Why are restriction enzymes used when making a DNA fingerprint using STRs?

• They are used to determine the size and shape of DNA fragments.

• They are used in order to allow us to determine if a specific family or family member is related to the crime based on their DNA fragments.

• STR bands are units of bases that are typically two to five bases long and repeat multiple times. Restriction enzymes cut these bands since they match the enzyme, making them easily recognisable.

Why are restriction enzymes used when making a DNA fingerprint using STRs?

• They are used to determine the size and shape of DNA fragments.

• They are used in order to allow us to determine if a specific family or family member is related to the crime based on their DNA fragments.

• STR bands are units of bases that are typically two to five bases long and repeat multiple times. Restriction enzymes cut these bands since they match the enzyme, making them easily recognisable.

Data points are used to determine which base pairs match within the gel. If the pairs match, there is a high likelihood that both strands belong to the same individual.

• Analyze DNA

• Gel Electrophoresis

• Use Restriction Enzymes

DNA can be used for ...

• determining paternity

• identifying human remains

• identifying a suspect

• All of these

Tags

SFS3

There are multiple male suspects involved in a case. Which of the following analysis techniques would be most helpful in differentiating the men from one another ?

• Y-Marker Analysis

• SNP Analysis

• Amelogenin Gene Analysis

• Mitochondrial DNA Analysis

Tags

SFS3

Data points are used to determine which base pairs match within the gel. If the pairs match, there is a high likelihood that both strands belong to the same individual.

• Analyze DNA

• Gel Electrophoresis

• Use Restriction Enzymes