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i) What is synaptonemal complex?
ii) Explain the significance of crossing over with diagram. In which phase of cell division this process takes place?
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 centripetal and centrifugal manner?
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?
During pachytene stage of meiosis , the chromosomes appear ---
1)single stranded 2)4-stranded 3)6-stranded 4)8-stranded
what is the significance of mitosis and meiosis??
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?
which structure of animal cell forms the asters of spindle?
Give brief account of somatic cell division ?
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 the significance of mitosis and meiosis?
where do mitosis and meiosis occur in animal and plants?
what is the difference b/w miosos and mitosis
Can you explain the full process of meiosis 1?
What will be the amount of dna in meiosis II products if meiocyte contains 30 Pg DNA in G1 phase?
what is terminalization?
How the chromosome number is maintained in offspring?
are bivalent & tetrad the same thing?
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?
Difference between chromosomes and chromatin?
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?
You have studied
what is anastral mitosis?
name the stage of cell division in which paired homologous chromosomes get shorterned and thickened?
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
List the main differences between mitosis and meiosis.
what is G0 phase of plant cell?
what is kernplasma ratio?
diferentiate between metaphase of mitosis metaphase 1 of meiosis?
what is cytokinesis?
what will be the total number of mitotic divisions in the formation of 64 daughter cells
how many meiotic divisions are necessary for the formation of 100 grains?? ans-125....please explain how??
what's synapse?with the help of diagram explain reflex action on knee jerk?
What is chiasmata? State its significance.
In which phase proteins for spindle fiber formation are synthesised? a) G1 b) G2
c) s
What is DNA replication?
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?
Describe the following:
(a) synapsis (b) bivalent (c) chiasmata
Draw a diagram to illustrate your answer.
what is hemozygous?
what is chiasmata?? plz explain in simple words
Distinguish cytokinesis from karyokinesis.
The point at which polytene chromosomes appear to be attached together is called what? n why?
which is the best material for study of mitosis in laborartory among following- anther, root tip , leaf tip and ovary. please give reason?
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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?
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.
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*.
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.....
a)metaphase-1
b)anaphase-2
c)anaphase-1
d)interkinesis
what are sister and non sister chromatids???????
(a) Terminalisation (b) Diakinesis (c) Interkinesis (d) Heteropycnosis
what is centripetal and centrifugal manner?
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 ) ?
(1) first division is equational, second is reductional
(2) first division is reductional, and second is eqautional
(3) both the divisions are reductional
(4) both the divisions are equational
why interphase called resting phase?
HOW MANY MEIOTIC DIVISIONS ARE REQUIRED TO FORM 200 POLLEN GRAINS?
During pachytene stage of meiosis , the chromosomes appear ---
1)single stranded 2)4-stranded 3)6-stranded 4)8-stranded
what is the significance of mitosis and meiosis??
Chromosomal material becomes untangled during the process of chromatin condensation.???
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?
which structure of animal cell forms the asters of spindle?
Give brief account of somatic cell division ?
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 the significance of mitosis and meiosis?
where do mitosis and meiosis occur in animal and plants?
what is the difference b/w miosos and mitosis
Can you explain the full process of meiosis 1?
What will be the amount of dna in meiosis II products if meiocyte contains 30 Pg DNA in G1 phase?
what is terminalization?
(a) Zygotic meiosis (b) Haplotonic meiosis (c) Terminal Meiosis (d) Intermediate Meiosis
(a) Prophase (b) Metaphase (c)Anaphase (d) Telophase
How the chromosome number is maintained in offspring?
are bivalent & tetrad the same thing?
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?
Difference between chromosomes and chromatin?
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?
You have studied
what is anastral mitosis?
name the stage of cell division in which paired homologous chromosomes get shorterned and thickened?
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
A) G1 b) G2. C) S. D) M
List the main differences between mitosis and meiosis.
what is G0 phase of plant cell?
what is kernplasma ratio?
diferentiate between metaphase of mitosis metaphase 1 of meiosis?
what is cytokinesis?
what will be the total number of mitotic divisions in the formation of 64 daughter cells
1)12
2)24
3)6
4)3
plz explain ur answer and tell how to do these type of questions
how many meiotic divisions are necessary for the formation of 100 grains?? ans-125....please explain how??
what's synapse?with the help of diagram explain reflex action on knee jerk?
What is chiasmata? State its significance.
In which phase proteins for spindle fiber formation are synthesised? a) G1 b) G2
c) s
What is DNA replication?
(i) chromosomes are arranged on equatorial plate during mitosis
(ii) disappearance of nuclear membrane during mitosis
(iii) reappearance of chromosomes in mitosis
(iv) pairing of homologous chromosomes in meiosis 1
(v) enzymes involve in cross over in prophase 1
8. If a call has twice as much DNA as in a normal functional cell, it means that the cell.
(a) is preparing the divide.
(b) has completes division.
(c) has reached the end of its life span.
(d) has ceased to function.
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?
Describe the following:
(a) synapsis (b) bivalent (c) chiasmata
Draw a diagram to illustrate your answer.
A)Crossing over
B)Synapsis
C)terminalisation of chiasmata
D)Disappearance of nucleolus
(a) G1 and G2 phase (b) S-Phase (c) M-Phase (d) Cytokinesis
what is hemozygous?
A 200
B 700
C 500
D 400
what is chiasmata?? plz explain in simple words
Distinguish cytokinesis from karyokinesis.
The point at which polytene chromosomes appear to be attached together is called what? n why?
which is the best material for study of mitosis in laborartory among following- anther, root tip , leaf tip and ovary. please give reason?