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

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

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

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

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

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

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

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

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

A) 50 (25) pairs
B) 20 (10 pairs)
C) 100 (50 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) 0 (there is no nucleus)
C) 23 (half that of a normal human cell)
D) 92 (double a human cell)

A) True
B) False

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