Laticifers are made of individual cells and can occur either as articulated systems (single cells connected by a small tube) or non-articulated systems (one large syncytial cell).

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#Id: 8043

#XL - Q Biochemistry

RS Configuration 

Atoms of higher atomic number rank above those of lower atomic number (e.g., —OH ranks above —CH3). If the first substituent atoms are identical, the priority is established by the next atom outward from the chiral center (e.g., —CH2OH takes precedence over —CH3).

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#Id: 1819

#XL - T Zoology

r and λ relation 

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#Id: 7037

#XL - T Zoology

Darwin’s evolutionary theory - Evolution as such is the simple proposition that the characteristics of organisms change over time. 

Geometric increase 

Limited food & Space

Struggle for existence 

Variation 

Natural selection

Inheritance of useful characters

Speciation 

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#Id: 10768

#XL - R Botany

Number of carpels are variable

If only one carpel exists within an ovary, it is said to be monocarpous or monocarpellary Ex;  Fabaceae

Number of carpels are variable

There may be more than one carpel, or two carpel called Bicarpellary they may be free and, if so, are said to be apocarpous. Ex- as in lotus and rose

Number of carpels are variable

There may be more than one carpel, or two carpel called bicarpellary they are termed syncarpous when carpels are fused. Ex-  as in mustard and tomato (brassicaceae and solanaceae)

Number of carpels are variable

There may be 3 fused carpel are termed tricarpellary syncarpousEx- lilliaceae

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#Id: 8520

#XL - Q Biochemistry

Post-translational modifications of tubulin:

Lysine acetylation

Detyrosylation

Polyglutamylation

Polyglycylation