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

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

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

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

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

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

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

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

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

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

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

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

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