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

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

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

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

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

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

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

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

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

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

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

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

A) False
B) True

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