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

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

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

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

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

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

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

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

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

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

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

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

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