Enzymes and Central Dogma

Which of the following types of RNAs serves as template for the amino acids sequence being synthesized.

• tRNA

• rRNA

• snRNA

• mRNA

All of the following statements are correct regarding enzymes, EXCEPT:

• Enzymes are Catalysts

• Enzyme is usually a protein

• Enzyme is consumed during chemical reaction

• Enzyme hastens chemical reactions

Apoenzyme plu cofactor is called?

• Holoenzyme

• Coenzyme

• Simple Enzyme

• Conjugated Enzyme

Each end of the DNA double helix contains the 5 ends of one strand and the 3 end of the other strand, this statement describes what characteristics of the DNA structures?

• Base Pairing

• Antiparallel

• Helix

• Complementary

Which of the following pairings of extremozyme subtype and survival conditions is correct?

• Acidophiles – optimal growth at pH levels above 9

• Cryophiles – optimal growth at temperatures above 80 degrees Celsius

• Alkaliphiles – optimal growth at temperatures above 80 degrees Celsius

• Piezophiles – optimal growth at high hydrostatic pressure

Which of the following are purine bases?

• Cytosine and Uracil

• Guanine and Cytosine

• Adenine and Thymine

• Adenine and Guanine

This enzyme is responsible for unwinding and separating the double-stranded DNA in order to form the replication fork.

• Helicase

• Polymerase

• Primase

• Topoisomerase

Enables DNA Polymerase to start making DNA strand

• Primer

• Enhancder

• Polymerase

• Methionine

Which of the following is an INCORRECT pairing of concepts?

• Intron-does not convey codes for genetic information

• tRNA-most abundant type of RNA

• Genome-total DNA in chromosomes

• Exon- does convey codes for genetic information

Water-soluble vitamins are directly absorbed into the blood.

Transport of fat-soluble vitamins requires protein carriers like H2O

• Only the first statement is correct

• Only the second statement is correct

• Both statements are correct

• Both statements are incorrect