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TLS Online TPP Program

#Question id: 11544

When a steroid hormone and a polypeptide hormone exert similar effects on a population of target cells, then ________.

#Biochemistry
  1. the steroid and polypeptide hormones must use the same biochemical mechanisms
  2. the steroid and polypeptide hormones must bind to the same receptor protein
  3. the steroid hormones affect the synthesis of effector proteins, whereas polypeptide hormones activate effector proteins already present in the cell

  4. the steroid hormones affect the activity of certain proteins within the cell, whereas polypeptide hormones directly affect the processing of mRNA

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TLS Online TPP Program

#Question id: 40241

#Botany

Read the following statements regarding beverage plants:
Statement I: Commercial tea is obtained from the processed leaves of Camellia sinensis, which belongs to the family Theaceae.
Statement II: Coffee is obtained from the roasted seeds of Coffea arabica, which belongs to the family Euphorbiaceae.
Choose the correct answer from the options given below:
TLS Online TPP Program

#Question id: 40242

#Botany

Match List-I with List-II

LIST-I (Botanical Name)LIST-II (Economically Useful Part)
A. Crocus sativus (Saffron)I. Dried rhizome
B. Syzygium aromaticum (Clove)II. Dried stigmas and tops of styles
C. Curcuma longa (Turmeric)III. Dried oleo-gum-resin
D. Ferula assa-foetida (Hing)IV. Dried unopened flower buds
Choose the correct answer from the options given below:
TLS Online TPP Program

#Question id: 40243

#Botany

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): Cotton fibers are considered surface fibers rather than bast fibers.
Reason (R): Cotton fibers originate as epidermal elongations of the seed coat, whereas bast fibers are derived from the phloem tissues of the stem.
In the light of the above statements, choose the most appropriate answer from the options given below:
TLS Online TPP Program

#Question id: 40244

#Botany

Which of the following statements are correct regarding the Para Rubber tree (Hevea brasiliensis)?

1.It belongs to the family Euphorbiaceae.

2.Latex is obtained primarily from the xylem vessels of the tree.

3.The process of harvesting latex is known as 'tapping'.

4.Vulcanization involves heating rubber with sulfur to improve its elasticity and strength.

Choose the correct answer from the options given below:
TLS Online TPP Program

#Question id: 40249

#Botany

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): Jute fibers are technically classified as bast fibers.
Reason (R): They are obtained from the secondary xylem (wood) of the plant stem.
In the light of the above statements, choose the correct answer from the options given below:
TLS Online TPP Program

#Question id: 40253

#Botany

Which of the following statements are correct regarding the oil-yielding plant Cocos nucifera (Coconut)?
1. It belongs to the family Arecaceae.
2. The fruit is botanically a berry.
3. Coir is obtained from the mesocarp of the fruit.
4. The edible coconut water is the free-nuclear endosperm.
Choose the correct answer from the options given below: