A) Bases
B) Phosphate groups
C) Sugar Molecules
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) Double Helix
B) Triangular
C) Circular
D) Rectangular
E) Single Helix

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

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

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

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

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

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

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

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

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

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

A) False
B) True

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