(a) Vitamin-A
(b) Vitamin-D
(c) Vitamin-K
(d) Vitamin-C
172 Q) The phenomenon of Poly-embryony was first observed in
(a) manginifera
(b) cucurbita
(c) citrus
(d) euphorbia
(a) Flaccidity
(b) Turgidity
(c) Plasmolysis
(d) Bursting
174 Q) The nucleolus is the chief site for the synthesis of
(a) tRNA
(b) mRNA
(c) rRNA
(d) scRNA
175 Q) "Which of the following viruses have RNA as the genetic material?
1.Polio-viruses 2. Reo-viruses 3. Adenoviruses 4. TMV Codes"
(a) All of these
(b) 1,2 and 4
(c) 2, 3 and 4
(d) 3 and 4
176 Q) In higher animals, haemoglobin is found in red blood corpuscles. Which of the following animals have haemoglobin dissolved in plasma?
(a) Annelids
(b) Birds
(c) Reptiles
(d) Mammals
177 Q) "Consider the given cell organelles
I. Mitochondria II. Plastids III. Ribosome
Which of the cell organelle(s) given above is/are common in both plant and animal cells?"
(a) All of these
(b) I and II
(c) I and III
(d) Only II
178 Q) "Consider the followings
I. Meristem II. Microspore III. Megaspore
Which of the plant cells/tissues given above is/are ‘totipotency’ in nature?"
(a) Only I
(b) I and III
(c) II and III
(d) Only III
179 Q) Which one among the following amino acids is the last entry in "magic-20''s?
(a) Serine
(b) Histidine
(c) Proline
(d) Asparagine
180 Q) "Consider the following statements about progeria
I. Progeria is the genetic disease associated with fast ageing.
II. Progeric patients never live beyond early twenties.
III. It happens due to point mutation replacing cytosine by thymine
Which of the statements given above is/are correct?"
(a) All of these
(b) Only I
(c) II and III
(d) II and III
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