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What is DNA?
You've got that super "BASE"
Chemical Structure
Discovering DNA's shape
Base-Pairing Rules
100
DNA stands for ___________________________
What is deoxyribonucleic acid
100

DNA has how many different nitrogenous bases?

What is four

100
The type of bond that holds base pairs together is? (Hint: The weaker one)
What is a hydrogen bond
100
DNA has a specific shape called a _____________________, which can be described as a twisted ladder.
What is a double helix
100
Base-pairing rules state that A always pairs with ____.
What is T (Thymine)
200
DNA is which of following organic molecules? A) A lipid B) A carbohydrate C) A protein D) A nucleic acid
What is a nucleic acid
200
What is the name for the base represented by an (A)?
What is Adenine
200
A strand of DNA is supported by its "backbones". Which two molecules make up the backbone of DNA?
What are sugars and phosphates
200
True/False: DNA exists normally in your cells as a single-strand of nucleotides, having one backbone connected to nitrogenous bases.
What is False (DNA is double-stranded)
200
Base-pairing rules state that G always pairs with _____.
What is C (Cytosine)
300
A nucleic acid is made up of smaller units, or building blocks, called ____________________
What are nucleotides
300

What nitrogenous base does Guanine form a base pair with?

What is Cytosine

300
The type of bond that holds the two molecules together that make up the backbone is? (Hint: Stronger one)
What is a covalent bond
300
Thinking back to the twisted ladder analogy, what do the sides of the ladder represent?
What are the backbones of DNA (made up of sugars and phosphates)
300
If one side of a strand of DNA reads ATCGA, use the base-pair rules to come up with the sequence on the other, complementary strand of the same DNA. (Complementary means matching)
What is TAGCT Because... A=T T=A C=G G=C A=T
400
DNA nucleotides are made up of three components:
What are 1. A sugar 2. A phosphate 3. A nitrogen base (need all 3 to be correct)
400

A gene contains 305 Cytosine nucleotides. How many Guanine nucleotides does that same gene contain?

What is 305 (the same)

400

How many oxygen atoms are bonded to a central phosphorus atom to make a phosphate?

What is four

400

What is the last name of the scientist who discovered that fibroblasts divide 50 times before becoming senescent?

Who is Hayflick

400
One strand of DNA reads GGACTTC, what is the sequence on the other, complementary strand?
What is CCTGAAG
500
The sugar in DNA is made up of 5 carbons, what is the specific name for this 5-carbon sugar in DNA? (Hint: the D in DNA)
What is deoxyribose
500
What is the name for the base represented by a (T)?
What is Thymine
500

Deoxyribose sugar has 5 carbons.  Which carbon attaches/bonds to the nitrogenous base?

What is carbon 1

500

DNA runs in an antiparallel direction, which means the two strands run in the opposite direction.  What are the two carbon numbers used to determine the direction of a strand of DNA? Hint: the word "prime" is applied to these numbers

What are 3' (3 prime) and 5' (prime)

500

Before anybody knew what the structure of DNA was, or even that bases paired up with each other, we only knew that there were sugars, phosphates, and the nitrogen bases A,G,C, and T in a DNA molecule. The name of the scientist who discovered that the % A equals the % T, and the % G equals the % C was?

Who is Chargaff