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

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

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

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

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

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

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

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

A) 4
B) 8
C) 2
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) 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) 0 (there is no nucleus)
B) 92 (double a human cell)
C) 46 (same as a human cell)
D) 23 (half that of a normal human cell)

A) True
B) False

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