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

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

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

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

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

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

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

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

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

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

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

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

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