DNA structure
DNA Function
DNA bases
Genetics
100
What are the three components that make up a nucleotide?
Sugar
Phosphate
Base
100
These two nucleotide pieces make up the DNA backbone.
Sugar and Phosphate
100
Write the corresponding DNA side to this sequence:
ATGGCCTA
TACCGGAT
100
There are _______ chromosomes in the human body.
46
200
(A) adenine always bonds with
(T) thymine
200
Which part of the nucleotide is circled 
the base
200
The location that DNA is stored in humans
the nucleus
200
When the cell replicates, the DNA tightens up even more to produce a structure called ____________
Chromosomes
300
(C) cytosine always bonds with
(G) guanine
300
Which part of the nucleotide is circled in this picture
the sugar
300
How many different bases are there in DNA
4
300
Different versions of the same gene are called ______
alleles
400
What does DNA stand for
deoxyribonucelic acid
400
Which part of the nucleotide is circled
the phosphate group
400
In the nucleus, DNA spends most of its time wrapped up in a structure called
Chromatin
400
Sections of DNA that contain genetic information about our specific traits are called __________
genes
500
What is the scientific name for the spiral staircase shape that DNA makes
double helix
500
The complete DNA sequence in each cell is called a _____
genome
500
True or False
If there are 42 Adenines in a strand of DNA, there will also be 42 Thymines in the same strand
True
500
Chromosomes that pair up because they carry the same genes are called_______________
homologous chromosomes