A) Phosphate groups
B) Sugar Molecules
C) Nucleotides
D) Bases

A) Acids, Bases and inorganic salts
B) Phosphate groups, deoxyribose sugars and nitrogen rich bases
C) Genes and Chromosomes X and Chromosomes Y
D) G, T and C Bases

A) Double Helix
B) Rectangular
C) Single Helix
D) Triangular
E) Circular

A) base molecules
B) phosphate and base molecules
C) phosphate and sugar molecules
D) sugar and base molecules

A) nitrogen-rich base pairs
B) sugar molecule pairs
C) phosphate and sugar molecules
D) phosphate and base molecules

A) 2
B) 4
C) 0
D) 6
E) 8

A) C
B) T
C) G
D) A

A) T
B) C
C) G
D) A

A) 2
B) 8
C) 0
D) 4

A) the red blood cell
B) the DNA strand
C) the gene
D) the nucleus of the cell

A) 46 (23 pairs)
B) 100 (50 pairs)
C) 20 (10 pairs)
D) 50 (25) pairs

A) 92 (double a human cell)
B) 23 (half that of a normal human cell)
C) 46 (same as a human cell)
D) 0 (there is no nucleus)

A) 0 (there is no nucleus)
B) 23 (half that of a normal human cell)
C) 92 (double a human cell)
D) 46 (same as a human cell)

A) True
B) False

A) Another name for DNA
B) A section of DNA that contains the genetic code
C) Half a chromosome
D) Another name for chromosomes