Select Board & Class
i) What is synaptonemal complex?
ii) Explain the significance of crossing over with diagram. In which phase of cell division this process takes place?
where do mitosis and meiosis occur in animal and plants?
multicellular organisms have division of labour? explain
what is a mesosome in prokaryotic cell? mention the function it performs.
Draw the diagram of all five sub stages of prophase 1 of meiosis 1 and explain them.....pls give me these diagrams as soon as possible.....
what are sister and non sister chromatids???????
What is the role of carbonic anhydrase in humans? Where is it operative?
How many meiotic divisions are required to produce 1000 seeds(grain) of cyprus plant which is an expection to the division rule of ( n + n/4 ) ?
why interphase called resting phase?
what is the significance of mitosis and meiosis??
HOW MANY MEIOTIC DIVISIONS ARE REQUIRED TO FORM 200 POLLEN GRAINS?
Mitosis and Meiosis take place respectively in
c) permanent tissue secretory tissue
d) secretory tissue permanent tissue. which one is correct?
what is terminalization?
What will be the amount of dna in meiosis II products if meiocyte contains 30 Pg DNA in G1 phase?
figure of different stages of meiosis
difference between sister and non-sister chromatids
At which stage of cell division the morphology of chromosomes can be distincly studied?
Give brief account of somatic cell division ?
which structure of animal cell forms the asters of spindle?
what is the significance of mitosis and meiosis?
what is the difference b/w miosos and mitosis
Plant x has 2n=4 chromosomes.
i)Sketch various stages of meosis of this plant.
Can you explain the full process of meiosis 1?
name the cells in which meiosis occurs?(1 mark)
name the stage of cell division in which paired homologous chromosomes get shorterned and thickened?
How the chromosome number is maintained in offspring?
are bivalent & tetrad the same thing?
Difference between chromosomes and chromatin?
a body weighs 98N on the surface of earth. calculate the weight of the body at h=R where R=6400Km
You have studied
Resting Phase is the most active phase of cell cycle. Justify this statement!
plants dont have centrioles, so how are the spindle fibres formed for cell division? how can it divide without centriole? n if it can , why do animals need the centriole? What is its main function? arent spindle fibres formed by centriole? if nt then wer r they formed?
what is anastral mitosis?
The significance of meiosis lies in
a) reduction of diploid no. of chromosomes to haploid
b) maintaing constancy in no. of diploid chromosomes during sexual reproduction
c) production of genetic variability in population of species
d) all of above
which one is correct?
q.1what is the role of chromosomes in inheritance?
q2 what is genetic recombination?
q3 what is genetic mapping?
q4 what is diffrance between mitosis and meiosis?
q5 what is cell cycle and what's the function of cell cycle? please answer me as soon as it 's possible
what is G0 phase of plant cell?
what is centripetal and centrifugal manner?
the main differences between mitosis and meiosis.
diferentiate between metaphase of mitosis metaphase 1 of meiosis?
what will be the total number of mitotic divisions in the formation of 64 daughter cells
Karyokinesis differ from cytokinesis because it involves:
a) division of cytoplasm
b) division of nucleus cytoplasm
c) division of nucleus
d) division of cell
how many meiotic divisions are necessary for the formation of 100 grains?? ans-125....please explain how??
Explain the types of meiosis
what's synapse?with the help of diagram explain reflex action on knee jerk?
What is chiasmata? State its significance.
THE NUMBER OF CHROMATIDS IN THE CHROMOSOME AT ANAPHASE IS .......1] 2 IN METOSIS & 1 IN MEIOSIS 2] 1 IN METOSIS & 2 IN MEOSIS 3] 2 EACH IN METOSIS & MEIOSIS 3] 2 IN MITOSIS & 4 IN MEIOSIS
What is DNA replication?
"Chromosomal material condenses to form compact mitotic chromosomes. Chromosomes are seen to be composed of 2 chromatids attached together at the centromere. " Explain this statement.Also, what are mitotic spindle and microtubules?Thank You! :)
cell division includes karyokinesis and cytokinesis. at what phase does the cytokinesis process BEGIN.?is it at the end of telophase, starting of telophase, end of prophase or starting of prophase?
WHICH STAGE OF CELL DIVISION YOU WILL SELECT TO STUDY THE MORPHOLOGY OF A CHROMOSOME AND WHY?
What is synaptonemal complex ?please explain and give a defination.
synapsis (b) bivalent (c) chiasmata
a diagram to illustrate your answer.
Why does multicellular organism require 2 types of celldivision?Which of the two produces greaternumber of cells?How many?
what is hemozygous?
what is chiasmata?? plz explain in simple words
can anyone tell me the meaning of untangled
The point at which polytene chromosomes appear to be attached together is called what? n why?
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