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

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

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

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

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

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

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

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

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

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

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

A) False
B) True

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