Molecular Biology Basics

25 termsStudBud Administration1 play

Test your knowledge on fundamental concepts in molecular biology, from DNA structure to protein synthesis processes.

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Questions 25

Answers

1
What is a TATA box?
RNA sequence
Protein sequence
Promoter sequence
DNA sequence
2
What protects chromosome ends?
Exons
Telomeres
Histones
Introns
3
What are CpG islands?
High cytosine and guanine
Low adenine and thymine
Low cytosine and guanine
High adenine and thymine
4
What is a codon?
Two-nucleotide sequence
Five-nucleotide sequence
Three-nucleotide sequence
Four-nucleotide sequence
5
What is transcription?
Synthesizing RNA from DNA
Synthesizing proteins from RNA
Synthesizing DNA from RNA
Synthesizing lipids from DNA
6
What is alternative splicing?
RNA variants
No protein variants
Single protein variant
Multiple protein variants
7
What is DNA methylation?
Regulates gene expression
Replicates DNA
Synthesizes proteins
Synthesizes RNA
8
What are Okazaki fragments?
Chromatin pieces
Short DNA segments
RNA primers
Protein units
9
What do ribosomes do?
Synthesize RNA
Synthesize proteins
Synthesize lipids
Synthesize DNA
10
What are nucleosomes?
RNA wrapped around histones
RNA wrapped around proteins
DNA wrapped around histones
DNA wrapped around proteins
11
What is the central dogma?
Protein to RNA to DNA
DNA to RNA to protein
DNA to protein to RNA
RNA to DNA to protein
12
What signals translation start?
AUG codon
UAA codon
UAG codon
UGA codon
13
What signals translation end?
UAG, UGA, AUG
UAA, UAG, UGA
UGA, AUG, UAA
AUG, UAA, UAG
14
What does DNA stand for?
Nucleic acid
Genetic acid
Ribonucleic acid
Deoxyribonucleic acid
15
Where does DNA replication start?
Promoters
Telomeres
CpG islands
Origins of replication
16
Which enzyme joins Okazaki fragments?
DNA ligase
Polymerase
Helicase
Primase
17
What is translation?
DNA synthesis
RNA synthesis
Lipid synthesis
Protein synthesis
18
What is heterochromatin?
Methylated chromatin
Active chromatin
Loosely packed chromatin
Tightly packed chromatin
19
What pairs with adenine?
Thymine
Uracil
Guanine
Cytosine
20
What is epigenetics?
Changes in DNA sequence
Changes in RNA sequence
Changes in protein sequence
Changes in gene expression
21
What does RNA polymerase do?
Synthesizes RNA
Synthesizes proteins
Synthesizes DNA
Synthesizes lipids
22
What is euchromatin?
Inactive chromatin
Tightly packed chromatin
Methylated chromatin
Loosely packed chromatin
23
What is mRNA's role?
Carries genetic info
Regulates genes
Replicates DNA
Synthesizes proteins
24
What are introns?
Protein sequences
Non-coding sequences
Coding sequences
RNA sequences
25
Which enzyme unwinds DNA?
Primase
Helicase
Polymerase
Ligase

Molecular Biology Basics Flashcards | StudBud

Molecular Biology Basics

25 termsStudBud Administration1 play

Test your knowledge on fundamental concepts in molecular biology, from DNA structure to protein synthesis processes.

Flashcards25 cardsFPractice quizPHost liveL

Questions 25

Answers

1
What is a TATA box?
RNA sequence
Protein sequence
Promoter sequence
DNA sequence
2
What protects chromosome ends?
Exons
Telomeres
Histones
Introns
3
What are CpG islands?
High cytosine and guanine
Low adenine and thymine
Low cytosine and guanine
High adenine and thymine
4
What is a codon?
Two-nucleotide sequence
Five-nucleotide sequence
Three-nucleotide sequence
Four-nucleotide sequence
5
What is transcription?
Synthesizing RNA from DNA
Synthesizing proteins from RNA
Synthesizing DNA from RNA
Synthesizing lipids from DNA
6
What is alternative splicing?
RNA variants
No protein variants
Single protein variant
Multiple protein variants
7
What is DNA methylation?
Regulates gene expression
Replicates DNA
Synthesizes proteins
Synthesizes RNA
8
What are Okazaki fragments?
Chromatin pieces
Short DNA segments
RNA primers
Protein units
9
What do ribosomes do?
Synthesize RNA
Synthesize proteins
Synthesize lipids
Synthesize DNA
10
What are nucleosomes?
RNA wrapped around histones
RNA wrapped around proteins
DNA wrapped around histones
DNA wrapped around proteins
11
What is the central dogma?
Protein to RNA to DNA
DNA to RNA to protein
DNA to protein to RNA
RNA to DNA to protein
12
What signals translation start?
AUG codon
UAA codon
UAG codon
UGA codon
13
What signals translation end?
UAG, UGA, AUG
UAA, UAG, UGA
UGA, AUG, UAA
AUG, UAA, UAG
14
What does DNA stand for?
Nucleic acid
Genetic acid
Ribonucleic acid
Deoxyribonucleic acid
15
Where does DNA replication start?
Promoters
Telomeres
CpG islands
Origins of replication
16
Which enzyme joins Okazaki fragments?
DNA ligase
Polymerase
Helicase
Primase
17
What is translation?
DNA synthesis
RNA synthesis
Lipid synthesis
Protein synthesis
18
What is heterochromatin?
Methylated chromatin
Active chromatin
Loosely packed chromatin
Tightly packed chromatin
19
What pairs with adenine?
Thymine
Uracil
Guanine
Cytosine
20
What is epigenetics?
Changes in DNA sequence
Changes in RNA sequence
Changes in protein sequence
Changes in gene expression
21
What does RNA polymerase do?
Synthesizes RNA
Synthesizes proteins
Synthesizes DNA
Synthesizes lipids
22
What is euchromatin?
Inactive chromatin
Tightly packed chromatin
Methylated chromatin
Loosely packed chromatin
23
What is mRNA's role?
Carries genetic info
Regulates genes
Replicates DNA
Synthesizes proteins
24
What are introns?
Protein sequences
Non-coding sequences
Coding sequences
RNA sequences
25
Which enzyme unwinds DNA?
Primase
Helicase
Polymerase
Ligase