HELLO STUDENTS: DAY-3 Morning
1.CHROMOSOME NUMBERS OF PLANTS IN DIPLOID STATE:
*Papaya(Carica papaya)=36
*Radish(Raphanus sativus)=18
*Cabbage(Brassica oleracea)=18
*Pisum sativum (Garden pea)=14
*Arabidopsis thaliana =10
*Apple=34
*Ophioglossum(Adder's tongue fern)=1262
*Equisetum((Horsetail)=216
*Sugarcane=80
*Rice= 24
*Potato=48
*Maize=20
*Onion=16
*Giant Sequoia=22
*Haplopappus gracilis=4
2.COMMON FRUITS AND THEIR EDIBLE PARTS :
*Papaya/Carica papaya(Berry)=Mesocarp
*Pomegranate /Punica granatum (Balastula)=Aril(Testa (or) outer seed coat )
*Tomato/Lycopersicon esculentum(Berry)=Pericarp and Placenta.
*Mustard(Siliqua)=Seed
*Orange /Citrus reticulata(Hesperidium)=Juicy placenta
*Pear/Pyrus communis (Pome)=Fleshy thalamus
*Pea(Legume)= Cotyledons
*Maize(Caryopsis)=Endosperm
*Mango/Mangifera indica(Drupe)=Mesocarp
*Wheat(Caryopsis)=Endosperm
*Litchi/Litchi chinensis(Nut)=Aril
*Lemon/Citrus limon(Hesperidium)=Juicy placental hairs
*Grapes/Vitis vinifera(Berry)=Pericarp and placenta
*Jackfruit/Artocarpus integrifolia(Sorosis)=Perianth and Bracts
*Gram(Legume)=Cotyledons
*Fig/Ficus Carica(Syconus)=Fleshy thalamus or Fleshy receptacle
*Date palm/Phoenix dactylifera(Berry)=Pericarp
*Cucumber(Pepo)=Mesocarp
*Coconut/Cocos nucifera(Drupe)=Endosperm
*Cashew nut(Nut)=Fleshy thalamus
*Banana/Musa paradisiacal(Berry)=Pulp of Mesocarp and Endocarp.
*Apple/Pyrus maleus(Pome)=Thalamus
*Guava/Psidium guajava= Whole fruit
*Custard apple/Anona squamosa(Etaerio of Berries)=Pericarp
*Pine apple/Ananas comosus(Sorosis)=Juicy Mesocarp and Endocarp.
3.PLANTS ACT AS POLLUTION INDICATORS:
*SO2 POLLUTION= Lichens,Ficus,Pinus and Rose.
*NITRATE POLLUTION= Petunia and Chrysanthemum.
*FLUORIDE POLLUTION= Gladiolus
*HEAVY METAL POLLUTION=Robina pseudoacacia (Black locust tree).
4.ORGANIC ACIDS AND ITS SOURCES:
*CITRIC ACID= Aspergillus niger(Black mold)
*ACETIC ACID=Acetobacter aceti
*FUMARIC ACID=Rhizopus oryzae and Rhizopus stolonifer.
*BUTYRIC ACID=Clostridium butyricum.
*LACTIC ACID= Lactobacillus acidophilus, Rhizopus stolonifer.
*ITACONIC ACID=Aspergillus terreus.
*KOJIC ACID=Aspergillus flavus.
*GALLIC ACID=Aspergillus allomyces.
5.TERMINOLOLOGY of Water and Plants:
*CHRESARD=Water available to plants.
*ECHARD=Water not available to plants.
*HOLLARD= Total soil water content.
*CAPILLARY WATER= Water available to plants.
*GRAVITATIONAL WATER and HYGRASCOPIC WATER= Non available water to Plants.
6.INTER-GENIC(or)non -allelic interaction phenotypic ratio (EPISTATIC INTERACTION)
*Dominant epistasis in fruit colour in Summer squash =12:3:1
*Recessive epistasis in flower colour of Antirrhinum spp.= 9:3:4
*Duplicate genes with cumulative effect in fruit shape in summer squash=9:6:1
*Complementary genes in flower colour in sweet peas(Lathyrus)=9:7
*Supplementary genes in grain colour in maize=9:3:4
*Inhibitor genes in leaf colour in rice plants =13:3
*Duplicate genes in seed capsule shape(Fruit shape)in Shepherd's purse Bursa bursa-pastoris=15:1
7.INTRA-GENIC(or)ALLELIC INTERACTION Phenotypic Ratios:
*Incomplete dominance in flower colour in Mirabilis jalapa=1:2:1
*Incomplete dominance in flower colour in Antirrhinum spp (Snapdragon)=1:2:1
*Codominance in ABO Blood Group system in humans,Roan Coat colour of Horse and Sickle Cell Anaemia=1:2:1
By
Mr.R.Soundarapandian, MSc, MEd, MPhil,
PG Asst Zoology
SIR MCTM Boys Higher Secondary School,
Purasawalkam Chennai-84.
Post a Comment