Online Biotechnology Test - Biotechnology Test - Random

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Total number of questions: 20.
Time allotted: 30 minutes.
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Cosmids lack

genes coding for viral proteins

origin of replication

marker genes coding for replication

cleavage site for the insertion of foreign DNA

[#]

Inserted DNA in λ gt 11 can be expressed as

β-galactosidase fused protein

free protein in the cytoplasm

free protein that is secreted out

all of the above

[#]

Which cell type is likely to have the most mitochondria?

Fast-twitch muscle

Slow-twitch muscle

Liver cells

Adipose cells

[#]

The cellular organelle associated with secretion is the

golgi complex

mitochondrion

ribosome

lysosome

[#]

Chlorophyll is associated with

thylakoids

stroma

cristae

matrix

[#]

Reducing the expression of pectin methylesterase (PME) has resulted in

plants with resistance to bacteria and fungi

tomato juice that has higher viscosity

tomato fruit that last longer before they become rotten

tomato fruit that will not ripen

[#]

Resistance to glyphosphate in transgenic petunia plants has been developed by the transfer of

gene for EPSPS(5-enol-pyruvyl shikimat 3 phosphate synthase)

gene for ALS (acetolactate synthase)

gene for GS (glutamine synthase)

any of the above

[#]

Antisense technology

selectively blocks expression of a gene

combines genetic material from different species

combines organelles and cells

alters or transfers cells

[#]

Which tropical fruit crop has been successfully engineered to be protected against a lethal virus?

Passion fruit

Papaya

Mango

Lychee

[#]

10.

Human serum albumin in case of transgenic plant is secreted in

transgenic leaf tissues

transgenic root tissues

is not secreted out of plant

transgenic stem tissues

[#]

11.

Which of the following accumulates from factory waste?

Pseudomonas aeruginosa

Thiobacillus

Pseudomonas putida

Zoogloea ramigera

[#]

12.

Biochips are made up of

semi-conducting molecules inserted into the protein frame work

conducting molecules inserted into the protein frame work

non-conducting molecules inserted into the protein frame work

any of the above

[#]

13.

During which phase, a cleavage furrow is formed in animal cells?

G₁

G₂

[#]

14.

Sequences that correctly describes the cell cycle is

-> G1-> G2 -> S -> mitosis -> cytokinesis ->

-> S -> G2 -> mitosis -> cytokinesis -> G1 ->

-> G1 ->S -> G2 -> cytokinesis -> mitosis ->

->cytokinesis-> mitosis -> G1 -> S -> G2 ->

[#]

15.

Maximum amount of foreign DNA introduced into SV 40 viruses is

10 kb

5 kb

2.5 kb

1 kb

[#]

16.

Which of the following(s) is/are the most commonly used markers in yeast?

His 3

Ura 3

Trp 1

All of these

[#]

17.

Production of transgenic animals require transfections of

eggs or embryos

stem cells

red blood cells

all of these

[#]

18.

Preliminary clinical results with a humanized antibody against the interleukin-2 receptor have suggested the

absence of human immune response against murine proteins (HAMA) response

presence of HAMA response

poor recognition of immunoglobulin, Ig constant regions

all of the above

[#]

19.

Volatile acidity is

also known as total acidity

produced by acetobacter

produced by Brettanomyces

known for producing a mousy or barnyard aroma

[#]

20.

Malt vinegar is produced from

fruit juices

malted grain

ethanol

ale

[#]

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