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

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

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

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

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

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

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

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

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

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

A) 50 (25) pairs
B) 46 (23 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) 92 (double a human cell)
D) 0 (there is no nucleus)

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) False
B) True

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