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

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

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

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

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

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

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

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

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

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

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

A) 92 (double a human cell)
B) 46 (same as a human cell)
C) 23 (half that of a normal 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) Half a chromosome
C) A section of DNA that contains the genetic code
D) Another name for chromosomes