1. Drosophila genes (Points: 10) In the Drosophila experiment you carried out, from which organisms were the following genetic elements derived? Column preview UAS promoter yeast Beta-galactosidase...

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1.
Drosophila genes

(Points: 10)
In the Drosophila experiment you carried out, from which organisms were the following genetic elements derived?

Column preview





















UAS promoteryeast
Beta-galactosidasebacteria
Gal-4drosophila



Matching pairs















UAS promoter- Select choice -yeastbacteriadrosophila
Beta-galactosidase- Select choice -yeastbacteriadrosophila
Gal-4- Select choice -yeastbacteriadrosophila

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2.
Lac operon 1

(Points: 10)
Imagine that in a e.coli culture that was growing with glucose as its nutrient source you could artificially increase cAMP levels (which are normally associated with starvation). What would happen to the expression of beta-galactosidase?
1.It would be activated because the cAMP binding protein CAP would bind to the beta-galactosidase promoter
2.It would be reduced
3.It would remain at the same relatively high level
4.It would remain at a very low level

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3.
Gal4 1

(Points: 10)
Imagine you had these two strains of drosophila:
AA= contains the gene for Gal 4 and a UAS upstream of alcohol dehydrogenase
BB= has a UAS upstream of Beta- Galactosidase
What would you expect to be able to detect in the flies from the following crosses:

Column preview


























AA X AAa. Alcohol dehydrogenase
BB x BBb. Nothing
AA X BBc. Alcohol dehydrogenase and beta-galactosidase
d. Beta-galactosidase



Matching pairs















AA X AA- Select choice -abcd
BB x BB- Select choice -abcd
AA X BB- Select choice -abcd

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4.
tRNA 2

(Points: 10)
Which of the following stabilises the structure of tRNAs?
1.Binding to the correct amino acid
2.interaction with mRNA
3.binding to the ribosome
4.internal double stranded regions

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5.
Wobble

(Points: 10)
According to the Crick's wobble hypothesis what bases on the anticodon's 1st position can bind to the codon 3rd position?

Column preview

































CC or U
AU,C or A
UU
GG
IA or G



Matching pairs























C- Select choice -C or UU,C or AUGA or G
A- Select choice -C or UU,C or AUGA or G
U- Select choice -C or UU,C or AUGA or G
G- Select choice -C or UU,C or AUGA or G
I- Select choice -C or UU,C or AUGA or G

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6.
Shine Delgrano sequence

(Points: 10)
Between which nucleic acids does the Shine Dalgrano sequence stabilises binding?
1.mRNA and tRNA
2.mRNA and small subunit tRNA
3.tRNA and large subunit of rRNA
4.tRNA and small subunit of rRNA

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7.
signal peptide

(Points: 10)
Which of the following proteins are least likely to contain a signal peptide?
1.Cytosolic proteins
2.Nuclear Proteins
3.Secretory proteins
4.Membrane proteins

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8.
Protein modificatons

(Points: 10)
What are the main roles of the following post-translation modifications of proteins

Column preview



























PhosphorylatonActivation/inactivation
GlycosidationDegradation
AcylationAssociation with membrane
UbiquitinatioCell-cell recognition



Matching pairs



















Phosphorylaton- Select choice -Activation/inactivationDegradationAssociation with membraneCell-cell recognition
Glycosidation- Select choice -Activation/inactivationDegradationAssociation with membraneCell-cell recognition
Acylation- Select choice -Activation/inactivationDegradationAssociation with membraneCell-cell recognition
Ubiquitinatio- Select choice -Activation/inactivationDegradationAssociation with membraneCell-cell recognition

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9.
cloning

(Points: 10)
One of the advantages of expressing eukaryotic proteins in bacteria is that they are faithfully post-translationaly modified.
TrueFalse
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10.
chaperons

(Points: 10)
The structure and mechanism of action of chaperon proteins are conserved between prokaryotes and eukaryotes
TrueFalse
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Answered Same DayDec 21, 2021

Answer To: 1. Drosophila genes (Points: 10) In the Drosophila experiment you carried out, from which organisms...

Robert answered on Dec 21 2021
114 Votes
1. Drosophila genes
(Points: 10)
In the Drosophila experiment you carried out, from which organisms were the following
genetic elements derived?
Column preview
UAS promoter yeast
Beta-galactosidase bacteria
Gal-4 drosophila
Matching pairs
UAS promoter yeast


Beta-galactosidase bacteria


Gal-4 drosophila

Save Answer
2. Lac operon 1
(Points: 10)
Imagine that in a e.coli culture that was growing with glucose as its nutrient source
you could artificially increase cAMP levels (which are normally associated with
starvation). What would happen to the expression of beta-galactosidase?
1. It would be activated because the cAMP binding protein CAP would bind to the
beta-galactosidase promoter
2. It would be reduced
3. It would remain at the same relatively high level
4. It would remain at a very low level
Save Answer
3. Gal4 1
(Points: 10)

Imagine you had these two strains of drosophila:
AA= contains the gene for Gal 4 and a UAS upstream of alcohol dehydrogenase...
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