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

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

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

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

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

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

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

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

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

A) the gene
B) the red blood cell
C) the DNA strand
D) the nucleus of the 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) 46 (same as a human cell)
C) 92 (double a human cell)
D) 0 (there is no nucleus)

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

A) True
B) False

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