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

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

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

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

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

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

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

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

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

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

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

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

A) False
B) True

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