MOLECULAR BASIS OF INHERITANCE(PPT)

Question 1

a section of a DNA molecule whose sequence of building blocks
specifies the sequence of amino acids in a particular protein

Answer 1

Gene

Question 2

DNA and RNA are ______

Answer 2

polymers

Question 3

large molecules that consist of many similar smaller molecules, called
___________, linked together

Answer 3

monomers

Question 4

• monomers that make up DNA and RNA
• single building block of DNA

Answer 4

Nucleotides

Question 5

Each nucleotide consists of:

Answer 5

1) a pentose (five-carbon) sugar,
2) a nitrogenous (nitrogen-containing) base (usually just called a
base),
3) a phosphate group.

Question 6

DNA: the pentose sugar is _____
RNA: pentose sugar is ______

Answer 6

deoxyribose
ribose

Question 7

Two sugars differ by the chemical groups attached to the
________: a hydrogen atom (H) in deoxyribose and a
hydroxyl group (OH) in ribose.

Answer 7

2’ carbon

Question 8

Two classes of nitrogenous bases:

Answer 8

purines
pyrimidines

Question 9

are nine-membered, double-ringed structures

Answer 9

purines

Question 10

are six-membered, single-ringed structures.

Answer 10

pyrimidines