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

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

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

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

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

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

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

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

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

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

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

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

A) False
B) True

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