ExamVeda
Login
Home
21
When cells are ground or homogenized, the cell membranes break up into fragments, which round off to form bodies called
Discuss
Answer & Solution
Answer: Option C
No explanation is given for this question. Let's Discuss on Board
22
Match List I (Chromosome models) with List II (Discoverers) and choose the correct answer:
List-I List-II
a. Simple multi-stranded model 1. DuPraw
b. Centipede model 2. Nebel
c. Coiled coil model 3. Steffensen
d. Folded fibre model 4. Taylor
Discuss
Answer & Solution
Answer: Option D
No explanation is given for this question. Let's Discuss on Board
23
Consider the following statements regarding cell inclusions and choose the correct answer:
1. Starch grains occur in plant cells only, particularly in storage organs such as rhizomes and tubers
2. Aleurone grains contain stored proteins in plant cells
3. Crystals of various chemical compounds occur in plant cells
Discuss
Answer & Solution
Answer: Option C
No explanation is given for this question. Let's Discuss on Board
24
The synaptonemal complexes mostly disappear during
Discuss
Answer & Solution
Answer: Option B
No explanation is given for this question. Let's Discuss on Board
25
What is a tonoplast?
Discuss
Answer & Solution
Answer: Option C
No explanation is given for this question. Let's Discuss on Board
26
Which of the following, when blocks protein synthesis after mixing light and heavy ribsomes, no hybrids are formed?
Discuss
Answer & Solution
Answer: Option B
Solution:
Sparsomycin is an antibiotic that blocks protein synthesis by interacting with the ribosomes.

When sparsomycin is introduced into a system containing light and heavy ribosomes, it prevents the formation of hybrid ribosomes.

This occurs because sparsomycin interferes with the elongation process of protein synthesis by inhibiting the binding of aminoacyl-tRNA to the ribosome.

This inhibition prevents the formation of the necessary complexes for protein synthesis, resulting in no hybrids being formed when light and heavy ribosomes are mixed.

Therefore, the correct answer is Sparsomycin.
27
The chromosomes move towards the equator of the spindle in which of the following phases?
Discuss
Answer & Solution
Answer: Option B
No explanation is given for this question. Let's Discuss on Board
28
The term 'Meiosis' was coined by
Discuss
Answer & Solution
Answer: Option D
No explanation is given for this question. Let's Discuss on Board
29
In plant cells, the turgidity and rigidity is provided by
Discuss
Answer & Solution
Answer: Option D
No explanation is given for this question. Let's Discuss on Board
30
Identify the cell that is amoeboid in shape.
Discuss
Answer & Solution
Answer: Option D
No explanation is given for this question. Let's Discuss on Board