Ribosomes are the centre for
respiration
photosynthesis
protein synthesis
fat synthesis
Cell recognition and adhesion occur due to biochemicals of cell membranes named
proteins
lipids
proteins and lipids
glycoproteins and glycolipids
In salivary gland chromosomes/polytene chromosomes pairing is
absent
occasional
formed between non-homologous chromosomes
formed between homologous chromosomes
In meiosis, the daughter cells differ from parent cell as well as amongst themselves due to
segregation, independent assortment and crossing over
segregation and crossing over
independent assortment and crossing over
segregation and independent assortment
Resolution power is the ability to
distinguish two trees
distinguish two close objects
distinguish amongst organelles
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The prokaryotic flagella possess
unit membrane enclosed fibre
protein membrane enclosed fibre
'9 + 2' membrane enclosed structure
helically arranged protein molecule
Which one of the following structures will not be common to mitotic cells of higher plants?
Cell plate
Centriole
Centromere
Spindle fibres
Genes located on mitochondrial DNA
generally show maternal inheritance
are always inherited from the male parent
show biparental inheritance like the nuclear genes
are not inherited
Centromere is required for
movement of chromosomes towards poles
cytoplasmic cleavage
crossing over
transcription
Binding of specific protein on regulatory DNA sequence can be studied by means of
ultra centrifugation
electron microscope
light microscope
X-rays crystallography
