Online Biotechnology Test - Biotechnology Test 8

Instruction:

  • This is a FREE online test. Beware of scammers who ask for money to attend this test.
  • Total number of questions: 20.
  • Time allotted: 30 minutes.
  • Each question carries 1 mark; there are no negative marks.
  • DO NOT refresh the page.
  • All the best!

Marks : 2/20


Total number of questions
20
Number of answered questions
0
Number of unanswered questions
20
Test Review : View answers and explanation for this test.

1.
The mitochondria were known in the nineteenth century to be osmotically active on the basis of evidence that
the mitochondrial matrix is hypotonic to the cellular cytoplasm
the mitochondrial matrix is hypertonic to the cellular cytoplasm
mitochondria were derived from a symbiotic bacterium
mitochondria are surrounded by a semi permeable membrane
Your Answer: Option
(Not Answered)
Correct Answer: Option

2.
If complex III were incorporated into an artificial lipid vesicle in order to demonstrate it's proton translocating ability in isolation, which of the following would be an appropriate electron donor?
Cytochrome c red
Cytochrome c peroxidase
Ubiquinol (UQH2)
Cytochrome c oxidase
Your Answer: Option
(Not Answered)
Correct Answer: Option

3.
In the Calvin cycle of C3 plants, which molecule is the acceptor of CO2?
Erythrose-4-phosphate
Ribulose-l,5-diphosphate
Ribose-5-phosphate
Alpha-ketoglutarate
Your Answer: Option
(Not Answered)
Correct Answer: Option

4.
Which of the following transposable elements are not found in plants?
Ac
Tam3
L1
All are found
Your Answer: Option
(Not Answered)
Correct Answer: Option

5.
Cellular totipotency is the property of
plants
animals
bacteria
all of these
Your Answer: Option
(Not Answered)
Correct Answer: Option

6.
Direct DNA uptake by protoplasts can be stimulated by
polyethylene glycol (PEG)
decanal
luciferin
all of these
Your Answer: Option
(Not Answered)
Correct Answer: Option

7.
Plant transformation vectors based on Agrobacterium can generally be divided into
two vectors
four vectors
six vectors
eight vectors
Your Answer: Option
(Not Answered)
Correct Answer: Option

8.
Which tropical fruit crop has been successfully engineered to be protected against a lethal virus?
Passion fruit
Papaya
Mango
Lychee
Your Answer: Option
(Not Answered)
Correct Answer: Option

9.
The hybrid embryo can be rescued from damage/collapse by growing it
at low temperature
at low pH
at low water activity
in artificial medium
Your Answer: Option
(Not Answered)
Correct Answer: Option

10.
Which of the following is selectively effective against dicot weeds?
Cycloheximide
Anisomycin
Herbicidin A and B
Bialaphos
Your Answer: Option
(Not Answered)
Correct Answer: Option

11.
In a dihybrid cross, the progeny of an Fl individual (hetero2ygous for both characters) will show a phenotypic ratio of
1:1:1:1
1:2:2:1
9:3:3:1
3:1:1:3
Your Answer: Option
(Not Answered)
Correct Answer: Option

12.
The disorder in which of the following may cause "Ehlers-Danlos Syndrome"?
Dlashin protein
Collagen protein
Fibrin protein
Globulin protein
Your Answer: Option
(Not Answered)
Correct Answer: Option

13.
How does CO2 help in the cell metabolism during cell culture?
It participates in the de novo synthesis of purines and pyrimidines
Helps in the cells respiration
For monitoring pH of the culture
All of the above
Your Answer: Option
(Not Answered)
Correct Answer: Option

14.
α-aminoadipate inhibits the growth if one of the following marker is present in the yeast. That is
His 3
Lys 2
Ura 3
Trp 1
Your Answer: Option
(Not Answered)
Correct Answer: Option

15.
Which of the following is/are commonly used promoter of S. cerevisiae?
Galactokinase (GAL 1)
Alcohol dehydrogenase II (ADH 2)
Phosphoglycerate kinase (PGK)
All of the above
Your Answer: Option
(Not Answered)
Correct Answer: Option

16.
Which part of a cell carries the information that is passed from one generation to the next?
Cell
Nucleus
Cytoplasm
Chloroplast
Your Answer: Option
(Not Answered)
Correct Answer: Option

17.
Embryo transfer (ET) refers to the technique by which fertilized ova are collected from the reproductive tract of a genetically
superior female and transferred to the inferior
inferior female and transferred to the superior
balanced female
none of the above
Your Answer: Option
(Not Answered)
Correct Answer: Option

18.
The number of follicles at any particular stage is governed by
the rate of entry of dormant follicles
the rate of growth of follicles
the rate of loss of follicles
all of the above
Your Answer: Option
(Not Answered)
Correct Answer: Option

19.
Genetic change can occur only in
one way
two ways
three ways
four ways
Your Answer: Option
(Not Answered)
Correct Answer: Option

20.
How long does it take to complete fermentation process in case of red wine?
1-3 days
3-5 days
5-7 days
7-11 days
Your Answer: Option
(Not Answered)
Correct Answer: Option

*** END OF THE TEST ***
Time Left: 00:29:56
Post your test result / feedback here: