DNA is mainly found in
Nucleus only
Cytoplasm only
Both (a ) and (b)
Nucleolus
MeiosisII performs
Seperation of sex - chromosomes.
Synthesis of DNA and cen tromeres
Seperation of homologous chromosomes
Seperation of chromatids
Microtubulus absent in
Mitochondria
Centriole
Flagella
Spindle fibres
The exchange of genetic material between chromatids of paired homologous chromosomes during first meiotic division is called
Transformation
Chiasmata
Crossing over
Synapsis
A student wishes to study the cell structure under a light microscope having 10X eyepiece and 45X objective . He should illuminate the object by which one of the following colours of light so as to get the best possible resolution?
Blue
Green
Yellow
Red
Centromere is a part of
Ribosomes
Chromosomes
Endoplasmic reticulum.
In chloroplasts, chlorophyll is present in the
Outer membrane
Inner membrane
Thylakoid
Stroma
Oxysomes or Fo - F1 particles occur on
Thylakoids
Mitochondrial surface
Inner mitochondrial membrane
Chloroplast surface
Membranous bag with hydrolytic enzymes which is used for controlling intracellular digestion of macromolecules is
Endoplasmic reticulum
Nucleosome
Lysosome
Phagosome
Mitotic anaphase differs from metaphase in possessing
Same number of chromosomes and same number of chromatids
Half number of chromosomes and half number of chromatids
Half number of chromosomes and same number of chromatids
Same number of chromosomes and half number of chromatids
