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

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

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

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

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

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

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

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

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

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

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

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

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) False
B) True

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