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

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

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

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

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

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

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

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

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

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

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

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

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

A) True
B) False

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