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Biology 100 Questions and Correct
Answers/ Latest Update / Already Graded
What does STR stand for?
Ans: short tandem repeats
What is the genome of an organism?
Ans: The entire genetic material of an organism (including all
of the chromosomes and the mitochondria).
What does PCR stand for?
Ans: polymerase chain reaction
protein synthesis
Ans: the formation of proteins by using information contained
in DNA and carried by mRNA
What is protein made of?
Ans: amino acids
What does tRNA do?
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Ans: It transfers amino acids to a growing protein chain on the
ribosome.
What does mRNA do?
Ans: it passes through the nuclear pores and goes to the
ribosomes to give the codes to make proteins
What does the A-T and G-C base pairing provide?
Ans: complementarity of the two strands and chemical stability
to the helix
What are the A-T and G-C base pairs also known as?
Ans: Genetic Code
What is a gene?
Ans: segment of DNA that codes for a protein
What is the central dogma of molecular biology?
Ans: DNA -> RNA -> Protein
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What does U replace in RNA?
Ans: T
A chain of amino acids is called
Ans: polypeptide
Mutations are responsible for
Ans: the huge diversity in genes between and among
organisms
Mutations
Ans: -are random
-happen during DNA replication
-mutagens
What do mutations change?
Ans: Mutations change the genetic information of a cell
What do mutations do?
All rights reserved © 2025/ 2026 |
Biology 100 Questions and Correct
Answers/ Latest Update / Already Graded
What does STR stand for?
Ans: short tandem repeats
What is the genome of an organism?
Ans: The entire genetic material of an organism (including all
of the chromosomes and the mitochondria).
What does PCR stand for?
Ans: polymerase chain reaction
protein synthesis
Ans: the formation of proteins by using information contained
in DNA and carried by mRNA
What is protein made of?
Ans: amino acids
What does tRNA do?
All rights reserved © 2025/ 2026 |
, Page |2
Ans: It transfers amino acids to a growing protein chain on the
ribosome.
What does mRNA do?
Ans: it passes through the nuclear pores and goes to the
ribosomes to give the codes to make proteins
What does the A-T and G-C base pairing provide?
Ans: complementarity of the two strands and chemical stability
to the helix
What are the A-T and G-C base pairs also known as?
Ans: Genetic Code
What is a gene?
Ans: segment of DNA that codes for a protein
What is the central dogma of molecular biology?
Ans: DNA -> RNA -> Protein
All rights reserved © 2025/ 2026 |
, Page |3
What does U replace in RNA?
Ans: T
A chain of amino acids is called
Ans: polypeptide
Mutations are responsible for
Ans: the huge diversity in genes between and among
organisms
Mutations
Ans: -are random
-happen during DNA replication
-mutagens
What do mutations change?
Ans: Mutations change the genetic information of a cell
What do mutations do?
All rights reserved © 2025/ 2026 |