What is the name of the sugar found in a DNA molecule?
Deoxyribose
What is this chemical and what does it do for DNA and RNA?
A phosphate. This chemical bonds the sugar molecules together in the molecules' backbones.
Can you name the three nitrogenous bases that qualify as pyrimidines
Cytosine, Thymine, and Uracil
Choose letter A, B, C or D. Which chemical is a nitrogenous base?
Chemical C is the nitrogenous base
Can you name two purines?
Adenine and Guanine
Adenine always base pairs with (or hydrogen bonds to) _______________.
Thymine
Guanine always base pairs with (or hydrogen bonds to) ______________.
Cytosine
In a RNA molecules Uracil takes the place of ___________.
Thymine
What would be a complementary DNA strand to the bases AATTGGCC
TTAACCGG
Notice how one strand of DNA appears upside down as it bonds with the other. What do we call this molecular arrangement in DNA strands?
Antiparallel
What does a DNA nucleotide consist of?
A deoxyribose sugar, a phosphate, and a nitrogenous base
What does an RNA nucleotide consist of?
A ribose sugar, a phosphate and a nitrogenous base
Where can you find DNA in a chromosome?
DNA is located along the entire length of the chromosome and stuffed in between proteins called histone proteins.
What is a gene in DNA?
A gene is a small section of DNA that codes for a specific protein or trait.
