____________________ enzymes on the membrane surfaces of the intestinal cells split most of the dipeptides and tripeptides into single amino acids.
Fill in the blank with correct word
Q. 2____________________ is the process of messenger RNA being made from a template of DNA.
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Q. 3The ____________________ is determined by weak electrical attractions within the polypeptide chain.
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Q. 4The simplest amino acid, ____________________, has a hydrogen atom as its side group.
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Q. 5A variation in a single nucleotide of a DNA strand is called a(n) ____.
a. RNA switch
b. thymine substitution
c. environmental mutation
d. single nucleotide polymorphism
e. replication failure
Q. 6The area of study that examines how environmental factors influence gene expression without changing the DNA is known as ____.
a. genetics
b. genomics
c. nutritional genomics
d. epigenetics
e. nutrigenetics
Q. 7_________________ are composed of carbon, hydrogen, oxygen, and nitrogen atoms, arranged into amino acids linked in a chain.
Fill in the blank with correct word
Q. 8The disease phenylketonuria is related chiefly to abnormal metabolism of ____.
a. lactose
b. omega-3 fats
c. soy polysaccharides
d. a specific amino acid
e. glucose
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