Cell walls commonly are classified into two major types. This classification is based not on structural or biochemical differences;

A) primary walls and

B) secondary walls

i) walls formed during cell growth

ii) walls that are formed after cell enlargement stops

iii) multilayered walls that are strengthened and waterproofed by lignin

iv) Usually they are thin and simple, but some times may be thick and multilayered, such as those found in collenchyma or in the epidermis

v) highly specialized in structure and composition, reflecting the differentiated state of the cell

Which of the following is the correctly represents features of primary and secondary walls?

TLS Online TPP Program

#Question id: 2489

#Unit 2. Cellular Organization

For kinesin motors, the direction of movement along a microtubule is specified by the motor’s:

TLS Online TPP Program

#Question id: 1648

#Unit 4. Cell Communication and Cell Signaling

The complementarity determining regions (CDRs):

TLS Online TPP Program

#Question id: 915

#Unit 1. Molecules and their Interaction Relevant to Biology

Free fatty acids in the bloodstream are:

TLS Online TPP Program

#Question id: 803

#Unit 1. Molecules and their Interaction Relevant to Biology

A single-stranded DNA molecule contains 40 nucleotides and has the sequence 5’-(GA)20-3’. When this single strand binds to a complementary DNA strand to form a B-DNA structure,

TLS Online TPP Program

#Question id: 4812

#Unit 8. Inheritance Biology

Two character X and Y ,both follow law of dominance due to 3:1 F2 phenotypic ratio monohybrid cross separately If carry out dihybrid selfing cross for heterozygous genotype for both character does not follow law of independence assortment in normal environmental condition due to?