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

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

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

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

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

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

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

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

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

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

A) 20 (10 pairs)
B) 46 (23 pairs)
C) 50 (25) pairs
D) 100 (50 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) 92 (double a human cell)
C) 46 (same as a human cell)
D) 0 (there is no nucleus)

A) True
B) False

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