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

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

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

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

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

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

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

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

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

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

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

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

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) 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