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28.

Polyembrony is found in

( Citrus (B) Maize
(C) Kiwi (D) All the above
Which among the following is an example for crop species introduced in India ?
(A) Cabbage (B) Cauliflower
(C) Hevea brasiliensis (D) All the above.

Pick out the wrong statement :
(A) Selfing reduces homozygosity
(B) Inbreeding depression is absent on self pollinated crops
(0) Heterosis is the superiority of F1 hybrids over both of its parents
(D) ऽना decreases heterozygosity

The new plant species from West Bengal named after former President of India Dr APJ
Abdul Kalam belongs to the genera

(A) Oryza (B) Drypetes

(0) Santalam (2) Eriocaulon
Which among the following is not related with family Orchidaceae ?

(൧) Resupination (B) Follicle

(೮) Pollinium (2) Rostellum
Which Indian state has got highest area under mangrove forest ?

(A) West Bengal (B) Kerala

(C) Gujarat (D) Tamil Nadu

The height in cm of 11 plants are given below. Which is the median height ?
16, 17, 10, 14, 20, 8, 22, 31, 5, 10, 13.

(^) 10 (B) 15
(6) 14 (D) 17
Covid-19 genome is
(A) Single stranded DNA (B) Single stranded RNA
(C) Double stranded RNA (D) Double stranded DNA
Match the following :
Set -A Set-B

(a) Western blotting 1. DNA

(b) Southern blotting ii. Protein

(c) Northern blotting in. PCR

(9) 780 polymerase iv. RNA

(A) aii, b-i, 0 ൫ ೩೫ b-iv, c-iii, 6-1
(0) aii, b-iv, c-i, d-iii (2) പ, c-i, पना

Which among the following points is not correct about bryophytes ?
(4) Air chambers and air pores are absent in Anthocerotopsida
(B) The archesporium 15 endothecial in origin in Hepaticopsida
(C) Sporogenous tissue is amphithecial in origin in Anthocerotopsida
(D) Oblique septa is absent in the rhizoids of bryopsida

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