Molecular Genetics

Which nitrogenous base CAN'T be found in DNA?

• Adenine

• Guanine

• Thymine

• Uracil

The process by which DNA makes an exact copy of itself prior to cell division is called ________________.

• Deletion

• Replication

• Translation

• Transcription

Which is NOT a characteristic of DNA?

• has uracil

• has deoxyribose

• double stranded

• made up of nucleotides

Chromosomes are made of protein and what other molecules?

• ATP

• DNA

• H2O

• carbon dioxide

Chromosomes are found inside the _______________ of the cell.

• membrane

• mitochondria

• nucleus

• ribosome

How many pairs of chromosomes are in human beings?

• 23

• 24

• 32

• 43

In DNA, thymine is complementary to _____________________.

• Adenine

• Cytosine

• Guanine

• Uracil

In DNA, Cytosine is complementary to _________________.

• Adenine

• Cytosine

• Guanine

• Uracil

In a strand of DNA, if the percentage of thymine is 30% what would be the percentage of cytosine in the same DNA strand?

• 30%

• 40%

• 20%

• 50%

Which nitrogenous base cannot be found in DNA?

• Guanine

• Cytosine

• Adenine

• Uracil