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

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) Rectangular
C) Circular
D) Single Helix
E) Triangular

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

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

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

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

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

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

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

A) 20 (10 pairs)
B) 100 (50 pairs)
C) 46 (23 pairs)
D) 50 (25) 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) 0 (there is no nucleus)
B) 46 (same as a human cell)
C) 23 (half that of a normal human cell)
D) 92 (double a human cell)

A) False
B) True

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