Structure and Location
This is the place in the cell where DNA is found.
What is the nucleus.
What makes up the sides of a DNA strand?
Sugar/Phosphate
How many different DNA bases are there?
4
If one side of DNA has Adenine (A), which base must be on the opposite side? (letter)
Thymine (T)
What do the "rungs" or steps of the DNA ladder represent?
Bases
What is the shape of the DNA model
What is a Double Helix.
List the three parts of a single nucleotide.
Sugar, Phosphate, and Base
Adenine always pairs with which base? (name or letter)
Thymine or T
What the complementary bases for this strand (CTTG)?
GAAC
What is the shape of DNA?
Double Helix
What two things make up the sides of a DNA ladder?
What are sugars and phosphates.
What does the S and P stand for in a nucleotide?
Sugar and Phosphate
Cytosine always pairs with which base? (name or letter)
Guanine or G
What is the complimentary strand for TTA CGG (two groups)?
AAT GCC
Name the 4 different bases. Names or letters will work.
Adenine, Thymine, Cytosine, Guanine or ATCG
What is the small circle in a cell that holds DNA?
What is the nucleus.
True or False: A nucleotide has a sugar, a phosphate, and two bases.
False - a nucleotide has one base.
Complete the pairs: Guanine pairs with _____ and Thymine pairs with _____.
Cytosine and Adenine
What does the base letter A stand for?
Adenine
True or False: A nucleotide is made of a sugar, a phosphate, and a base.
True
Explain why each organism has unique DNA but the DNA works the same way in all organism
Each organism has its own unique sequence of DNA bases that makes it different, but DNA functions the same way because it stores instructions for traits in the same format in all organisms.
True or False: DNA can go anywhere it wants in a cell.
False. DNA can only be in the nucleus.
In one or two sentences, explain why the base‑pairing rule (A‑T, C‑G) is important when making a complementary strand.
Base pairing makes sure each base matches the correct partner so DNA can be copied accurately and carry the right instructions.
Is it possible for Adenine and Cytosine to go together?
No. Adenine only pairs with Thymine.
What do we call the sides of the DNA ladder?
Sugar and Phosphate