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Biology Basics Flashcards | StudBud

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True or false: Operons are in eukaryotes

What is the function of microRNA?

Biology Basics

19 terms·StudBud Administration

Test your knowledge on DNA, RNA, and cell processes in this engaging biology quiz

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Questions 19

Answers

1
What is the function of microRNA?
Synthesizes proteins
Replicates DNA
Regulates gene expression
Forms ribosomes
2
True or false: Operons are in eukaryotes
False
True
3
True or false: Introns code for proteins
False
True
4
What is a codon?
Three-nucleotide sequence
Enzyme
Single nucleotide
Protein
5
What is the role of a promoter?
Synthesizes proteins
Initiates transcription
Regulates cell cycle
Replicates DNA
6
Which enzyme unwinds DNA?
Helicase
Primase
Ligase
Polymerase
7
What is the role of cyclin?
Regulates cell cycle
Forms ribosomes
Synthesizes DNA
Unwinds DNA
8
True or false: Exons are non-coding
True
False
9
Which mutation introduces a stop codon?
Silent mutation
Missense mutation
Frameshift mutation
Nonsense mutation
10
What is the 5' end of DNA?
Ribose sugar
Hydroxyl group
Amino acid
Phosphate group
11
What is the function of tRNA?
Replicates DNA
Forms ribosomes
Carries genetic code
Brings amino acids
12
Which enzyme seals DNA breaks?
Polymerase
DNA ligase
Helicase
Primase
13
True or false: Mitosis divides cytoplasm
True
False
14
Which phase is for cell growth?
G1 phase
S phase
G2 phase
M phase
15
What is the function of histones?
Gene expression
Cell division
Protein synthesis
DNA packaging
16
True or false: DNA polymerase unwinds DNA
False
True
17
Which phase includes DNA replication?
M phase
G1 phase
S phase
G2 phase
18
True or false: RNA has thymine
True
False
19
Which phase includes mitosis?
S phase
G1 phase
M phase
G2 phase