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

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

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

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

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

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

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

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

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

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

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