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

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

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

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

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

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

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

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

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

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

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

A) 92 (double a human cell)
B) 0 (there is no nucleus)
C) 23 (half that of a normal human cell)
D) 46 (same as 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) Another name for chromosomes
B) A section of DNA that contains the genetic code
C) Another name for DNA
D) Half a chromosome