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

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

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

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

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

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

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

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

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

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

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

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

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) True
B) False

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