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

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

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

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

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

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

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

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

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

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

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

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

A) 23 (half that of a normal human cell)
B) 0 (there is no nucleus)
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