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

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

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

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

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

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

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

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

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

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

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

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) 0 (there is no nucleus)
B) 23 (half that of a normal human cell)
C) 92 (double a human cell)
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