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

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

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

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

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

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

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

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

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

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

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

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

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

A) True
B) False

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