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

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) Rectangular
E) Double Helix

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

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

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

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

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

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

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

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

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) 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) 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