Ans- Pinus gerardiana
2)Mesophyll tissue of Pinus needle is composed of
Ans- Spongy parenchyma
3)Winged seeds are present in
Ans- Pinus
4) Pollination of pollen grains of Pinus takes place at...... stage
Ans- 4 celled stage
5)Meroblastic kind of embryo development occurs in
Ans- Pinus
6)In Pinus needle vascular bundles are
Ans- collateral and open
7)The male cone of pinus is modified into.......
Ans- Dwarf shoot
8) Transfusion tissue, a modified vascular tissue is present in the leaves of.......
Ans- Pinus
9) Seeds of Pinus shows 3 generation as.......
Ans- Parent sporophyte, Gametophyet and future sporophyte
10)In Pinus male gametes are produced in the pollen tube by the division of ............. cell
Ans- Body cell
11) Pinus is .......... plant
Ans- Monoecious
12) The seed of Pinus is .......
Ans- Adaxial and endospermic
13) In Pinus male and female reproductive organs occurs at..........
Ans- On different branches of same plant
14) Pinus wood consists of entirely......
Ans- Trachieds
15) How many structure of pinus are haploid........
Ans- 3
16) In Pinus seed there are............. Cotyledons
Ans- Many
17) Male prothallus of Pinus having..........
Ans- 2 Prothallial cells
18) ............ is not belong to sporophytic generation
Ans- Endosperm
19) In embryo of pinus rosette cell lie
Ans- Above suspensor cell
20) Resins and terpens obtain from
Ans- Pinus
21)Catapyllus is.........
Ans- Scaly leaves of pinus
22)Male gametophyte is found to be........
Ans- 4 celled
23) Which of the following is best explanation of excurrent/pyramidal shape of Pinus.........
Ans- Adaptation for wind pollination
24) Pinus produces ............in cone
Ans- Naked seeds
25) The secondary wood in Pinus characterised by
Ans- Presence of resin ducts
26) Which of the alternatives represent the gametophyetic phase in Pinus.........
Ans- Micro and Megaspores
27)Needle of Pinus produces meristem at.........
Ans- Basal portion
28)The gametophyets of Pinus are protected from dessication by living in
Ans- Moist tissue of sporophyte in cone
29) Edible part of pinus is .........
Ans- Endosperm
30) The Megasporophyll of Pinus consist of...........
Ans- Both bract and ovuliferous scales
31) The foliage/ needle leaves are arise from.........
Ans- Branches of limited growth
32) Endosperm in Pinus formed..........
Ans- Before fertilization
33) Integument of Pinus ovule is......
Ans- Unitegmic
32) Pinus shows............. polyembryony
Ans- Simple and cleavage polyembryony
32) Pinus seeds shows ........ germination
Ans- Epigeal
33) The part of ovule in the Pinus which has megaspore mother cells dividing to form haploid megaspore is
Ans- Nucellus
35) Which of the tissue is present in the leaves of pinus and serve to conduct water and food
Ans- Transfusion tissue
36) Annual rings are well seen in.....
Ans- Pinus wood
36) The microsprophylls of pinus has......
Ans- 2 microsprorangia
37)Time lapse between fertilization and seed formation in Pinus is.......
Ans- 1 year
38)The wood of Pinus is .........
Ans- Pycnoxylic and monoxylic
39)............ pollengrain is characteristic features of pinus
Ans- Winged pollengrain
40)Plant of Pinus is........ tree
Ans- Evergreen tree
41).......... type of fertilization takes place in Pinus
Ans- siphonogamous fertilization
42)In India ........ species of Pinus have been reported
Ans- 6
43)Pinus plant is ........ shape
Ans- Pyramidal
44).........species of Pinus commonly known as "Blue pine"
Ans- Pinus wallichiana
45) Pinus Why Pinus seedling do not grow on places after fire. This is because the soil becomes
Ans- Devoid of fungi
46) Which type of resin canal are found in cortex and secondary xylem of the stem of Pinus
Ans-Schizogenous cavities
47) Sclerenchymatous hypodermis in Pinus needle helps in
Ans-Mechanical support
48) Foliar spur of Pinus sylvestris is called
Ans- Unifoliar
49) Female cone of Pinus is considered a modified
Ans- Dwarf shoot
50) The ovuliferous scale of Pinus is part of
Ans- Megasporophyll
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