In root apices with three sets of initials, the root cap arises from a fourth set of initials known as the

In which of the following types of root apices in dicots, there are two layers of initials at the tip, one forming the central cylinder and the other forming the cortex and root cap?

A

Ranunculus type

B

Casuarina type

C

Common type

D

None of the above

A manufacturer of TV wants to make a profit of Tk. 300,000 on sale of 200 TV sets. It costs Tk. 10,000 each to make the first 100 TV sets and Tk. 7,500 each to make TV sets after the first 100 sets. What should be the selling price of each TV sets in Taka?

A

10,250

B

10,350

C

10,500

D

10,600

According to the Histogen theory of Hanstein (1870), in monocotyledons, the root cap is derived from a separate layer of initials called

A

Quiescent centre

B

Dermatogen

C

Calyptrogen

D

Plerome

A flange of radius 200mm is fastened to the machine screw by means of four cap screws of pitch circle radius 150mm. The external force P is 20kN which is loaded at 160mm from the machine screw. There are two dowel pins to take shear load. Determine the core diameter of cap screw if permissible tensile stress in cap screw is 40N/mm².

A

None of the listed

B

11.21mm

C

12.33mm

D

14.12mm

The most extensive and common method of reproduction in runners, stolons, stem and root tubers, dormant apices, offsets etc., is

A

Sexual reproduction

B

Asexual reproduction

C

Vegetative propagation

D

Both A and B

According to Clowes, a cap-like region of inactive cells between the root cap and the active meristematic region is known as

A

Stele

B

Quiescent centre

C

Intercalary meristem

D

Columella

In the following question, two statements are given each followed by two conclusions I and II. You have to consider the statements to be true even ifthey seem to be at variance from commonly known facts. You have to decide which of the given conclusions, if any, follows from the given statements. Statements:
(I) Empty set is a subset of any set.
(II) A set is a subset of power set. Conclusion:
(I) Empty set is a power set.
(II) A set is a subset of power set.

A

Conclusion I follows

B

Conclusion II follows

C

Neither I nor II follows

D

Both I and II follows

A manufacturer of TV wants to make a profit of Tk. 3,00,000 on sale of 200 TV sets. It costs Tk. 10000 to make each of the first 100 TV sets and Tk. 7500 make each TV set after the first 100 sets. What should be the selling price of each TV set?

A

10,250

B

10,350

C

10,500

D

10,550

A manufacturer of TV wants to make a profit of Tk. 30000 on sale of 200 TV sets. It costs Tk. 10000 to make each of the first 100 TV sets and Tk. 7500 make each TV set after the first 100 sets. What should be the selling price of each TV set?

A

10,250

B

10,350

C

10,500

D

10,550

Read the following paragraph and answer the following question. Hershey-Chase experiment broke the barriers of science and expanded the understanding of life. In this experiment, two sets of bacteriophages are used in which one contains radioactive sulphur in its protein coat (Set-I) and other contains radioactive phosphorus in its DNA (Set-II). These two sets were allowed reproduce in E.Coli culture and then centrifuged. Which among the following are correct Set-I and Set-II after centrifugation?

A

Set-I and Set-II contains radioactive sulphur and phosphorous in their supernatant respectively

B

Set-I and Set-II contains radioactive sulphur in their supernatant

C

Set-I contains radioactive sulphur in its pellet and set-II contains radioactive phosphorous in its supernatant

D

Set-I and Set-II contains radioactive sulphur and phosphorous in their pellet respectively

In root apices with three sets of initials, the root cap arises from a fourth set of initials known as the

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