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?
what is G0 phase of plant cell?
multicellular organisms have division of labour? explain
what is a mesosome in prokaryotic cell? mention the function it performs.
In which phase proteins for spindle fiber formation are synthesised? a) G1 b) G2
c) s
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.....
can anyone tell me the meaning of untangled
what are sister and non sister chromatids???????
Resting Phase is the most active phase of cell cycle. Justify this statement!
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?
HOW MANY MEIOTIC DIVISIONS ARE REQUIRED TO FORM 200 POLLEN GRAINS?
what is the significance of mitosis and meiosis??
what is kernplasma ratio?
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?
where do mitosis and meiosis occur in animal and plants?
Give brief account of somatic cell division ?
what is the significance of mitosis and meiosis?
what is the difference b/w miosos and mitosis
Can you explain the full process of meiosis 1?
what is terminalization?
what is centripetal and centrifugal manner?
How the chromosome number is maintained in offspring?
Mitosis and Meiosis take place respectively in
a)meristem gametangia
b)gametangia meristem
c) permanent tissue secretory tissue
d) secretory tissue permanent tissue. which one is correct?
c)
are bivalent & tetrad the same thing?
"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! :)
Difference between chromosomes and chromatin?
What will be the amount of dna in meiosis II products if meiocyte contains 30 Pg DNA in G1 phase?
You have studied
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 congression (during metaphase)?
what is anastral mitosis?
WHICH STAGE OF CELL DIVISION YOU WILL SELECT TO STUDY THE MORPHOLOGY OF A CHROMOSOME AND WHY?
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
If we are asked to draw the diagram of any mitotic or meiotic phase of a cell with Diploid number:- 4, what do we do?
what does diploid number 4 mean?
List 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
plz give me atleast 3 differences between metaphase(MITOSIS) and mephase1(MEIOSIS)....
how many meiotic divisions are necessary for the formation of 100 grains?? ans-125....please explain how??
what are somatic cells?
what's synapse?with the help of diagram explain reflex action on knee jerk?
What is chiasmata? State its significance.
What is DNA replication?
which structure of animal cell forms the asters of spindle?
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?
i m not able to view the video's by teachers and if i try to contact on 011-40705070 they r nvr taking d phone...d r busy...need a solution as early as possible...
what is only cytological evidence of crossing over?
Describe the following:
(a) synapsis (b) bivalent (c) chiasmata
Draw a diagram to illustrate your answer.
by what the synaptonemal complex is made of? what are its functions?
what is hemozygous?
what is chiasmata?? plz explain in simple words
What is the role of carbonic anhydrase in humans? Where is it operative?
The point at which polytene chromosomes appear to be attached together is called what? n why?
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Syllabus
i) What is synaptonemal complex?
ii) Explain the significance of crossing over with diagram. In which phase of cell division this process takes place?
what is G0 phase of plant cell?
multicellular organisms have division of labour? explain
If meiosis II products have 10 chromosomes and 20 picogram DNA, then what will be the number of chromosomes and DNA amount respectively in G2 phase of meiocyte?
(1) 20 and 40 Pg DNA (2) 40 and 80 Pg DNA
(3) 20 and 20 Pg DNA (4) 20 and 80 Pg DNA
And the answer is given (4). I cant understand the explanation given also:--
Answer (4) In normal meiocyte,, chromosome = 2n
DNA = 2C
G1 = 2n, 2C
S = 2n, 4C
G2 = 2n, 4C
After meiosis II,,n, 1C in each haploid cell
what is a mesosome in prokaryotic cell? mention the function it performs.
In which phase proteins for spindle fiber formation are synthesised? a) G1 b) G2
c) s
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.....
can anyone tell me the meaning of untangled
what are sister and non sister chromatids???????
Resting Phase is the most active phase of cell cycle. Justify this statement!
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?
HOW MANY MEIOTIC DIVISIONS ARE REQUIRED TO FORM 200 POLLEN GRAINS?
1. diplotene stage
2. diakinesis stage
what is the significance of mitosis and meiosis??
what is kernplasma ratio?
figure of different stages of meiosis
Q1 Value based question:
In biology practical the teacher asked students to identify the stage of cells division in a slide focused undue microscope some said it is metaphase of mitosis and some said it is metaphase I of meiosis finally teacher told it is metaphase I of meiosis
a) On what basis the teacher confirmed that it is Metaphase I of meiosis
b) Enlist the difference between Metaphase II of meiosis
c) What is the significance of meiosis?
difference between sister and non-sister chromatids
At which stage of cell division the morphology of chromosomes can be distincly studied?
where do mitosis and meiosis occur in animal and plants?
Give brief account of somatic cell division ?
what is the significance of mitosis and meiosis?
what is the difference b/w miosos and mitosis
what is kernplasma ratio?
Can you explain the full process of meiosis 1?
what is terminalization?
what is centripetal and centrifugal manner?
How the chromosome number is maintained in offspring?
Mitosis and Meiosis take place respectively in
a)meristem gametangia
b)gametangia meristem
c) permanent tissue secretory tissue
d) secretory tissue permanent tissue. which one is correct?
c)
are bivalent & tetrad the same thing?
"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! :)
Difference between chromosomes and chromatin?
What will be the amount of dna in meiosis II products if meiocyte contains 30 Pg DNA in G1 phase?
You have studied
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 congression (during metaphase)?
what is anastral mitosis?
WHICH STAGE OF CELL DIVISION YOU WILL SELECT TO STUDY THE MORPHOLOGY OF A CHROMOSOME AND WHY?
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
If we are asked to draw the diagram of any mitotic or meiotic phase of a cell with Diploid number:- 4, what do we do?
what does diploid number 4 mean?
how can meiosis occur in animals having odd number of chromosomes like mules (63 chromosomes) ? how will be the no.of chromosomes divided among the daughter cells?
List the main differences between mitosis and meiosis.
diferentiate between metaphase of mitosis metaphase 1 of meiosis?
zygotene and pachytene
pachytene and zygotene
both pachytene
both zygotene
the question only says appear not clearly appear so what will be the answer?
what will be the total number of mitotic divisions in the formation of 64 daughter cells
plz give me atleast 3 differences between metaphase(MITOSIS) and mephase1(MEIOSIS)....
how many meiotic divisions are necessary for the formation of 100 grains?? ans-125....please explain how??
what are somatic cells?
what's synapse?with the help of diagram explain reflex action on knee jerk?
What is chiasmata? State its significance.
What is DNA replication?
which structure of animal cell forms the asters of spindle?
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?
i m not able to view the video's by teachers and if i try to contact on 011-40705070 they r nvr taking d phone...d r busy...need a solution as early as possible...
Chromosomal material condenses to form compact mitotic chromosomes. Chromosomes are seen to be composed of *chattached* together at the centromere.
Also, define the term *chattached*.
what is only cytological evidence of crossing over?
Describe the following:
(a) synapsis (b) bivalent (c) chiasmata
Draw a diagram to illustrate your answer.
by what the synaptonemal complex is made of? what are its functions?
what is hemozygous?
what is chiasmata?? plz explain in simple words
What is the role of carbonic anhydrase in humans? Where is it operative?
(a) Prophase (b) Metaphase (c)Anaphase (d) Telophase
The point at which polytene chromosomes appear to be attached together is called what? n why?