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

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

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

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

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

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

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

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

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

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

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

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

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

A) True
B) False

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