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

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

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

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

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

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

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

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

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

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

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

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