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11 Class Biology MCQs
- Pinus produces.
A. Cones
B. Fruits
C. Flower
D. None of these
Correct Answer: Cones - The drying of sex organs is prevented by a special hair-like structure called.
A. Epiphyses
B. Metaphyses
C. Paraphyses
D. Gemma cups
Correct Answer: Paraphyses - Anthoceros fusiformis belongs to _ species.
A. Hornworts
B. Liverworts
C. Mosses
D. Fern
Correct Answer: Hornworts - Selaginella shows _ during the life cycle.
A. Homogamy
B. Homospory
C. Heterozygocity
D. Heterospory
Correct Answer: Heterospory - Arabic gum is obtained from.
A. Acacia nilotica
B. Acacia catechu
C. Acacia malanoxylon
D. Albizzia
Correct Answer: Acacia nilotica - The persistent calyx is found in the family.
A. Rosaceae
B. Febaceae
C. Poaceae
D. Solanoceal
Correct Answer: Solanaceae - If the stems are attached with petals, they are called.
A. Epipetalous
B. Polypetalous
C. Episepalous
D. None
Correct Answer: None - Nicotine is a potent poison and is available in.
A. Tobacco
B. Bringal
C. Tomato
D. Potato
Correct Answer: Tobacco - The Spikelets are arranged on a slender axis called.
A. Thalamus
B. Rachilla
C. Pedicel
D. Glumes
Correct Answer: Rachilla - When an ovary in a flower is superior, the condition is called.
A. Epigynous
B. Hypognus
C. Pistillate
D. None
Correct Answer: Epigynous - The symbolic representation of various floral characters is called.
A. Floral formula
B. Floral diagram
C. Placentation
D. None of these
Correct Answer: Floral formula - The arrangement of ovules within the ovary is known as.
A. Ovulation
B. Aestivation
C. Placentation
D. None
Correct Answer: Placentation - The perianth of the family Poaceae is called.
A. Lemma
B. Palea
C. Lodicules
D. Glumes
Correct Answer: Lodicules - The plants which produce seeds are called.
A. Bryophytes
B. Pteridophytes
C. Tracheophytes
D. None of these
Correct Answer: None of these - Angiosperms endosperm is
A. Haploid
B. Diploid
C. Triploid
D. Tetraploid
Correct Answer: Triploid - The reproductive structure of an angiogram is the.
A. Leaf
B. Flower
C. Shoot
D. All of the above
Correct Answer: Flower - The numbers of genera of the family Gramineae in the world are.
A. 3000
B. 56
C.49
D. 11
Correct Answer: 56 - Capsicum is the generic name of.
A. Potato
B. Tobacco
C. Tomato
D. Red pepper
Correct Answer: Red pepper - Family Poaceae has a characteristic inflorescence, it is called.
A. Physalis
B. Spike
C. Spikelet
C. Raceme
D. Umbel
Correct Answer: Spikelet - In the given floral formula the flower is.
A. Complete
B. Imperfect
C. Incomplete
D. Not shown
Correct Answer: Not shown