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

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

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

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

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

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

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

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

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

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

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

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

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) 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