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?
multicellular organisms have division of labour? explain
where do mitosis and meiosis occur in animal and plants?
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.....
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?
what are sister and non sister chromatids???????
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 ) ?
what is the significance of mitosis and meiosis??
why interphase called resting phase?
HOW MANY MEIOTIC DIVISIONS ARE REQUIRED TO FORM 200 POLLEN GRAINS?
what is a genome?
a. how many genomes are there in a haploid and diploid cell?
b. a cell has 24 chromosomes before cell division . how many chromosomes will be there in -
1. one of the daughter cells resulting from mitotic division?
2. one resulting from meiotic division?
figure of different stages of meiosis
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)
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 ?
Why does multicellular organism require 2 types of celldivision?Which of the two produces greaternumber of cells?How many?
what is the significance of mitosis and meiosis?
what is centripetal and centrifugal manner?
what is the difference b/w miosos and mitosis
what is terminalization?
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 the difference between cell cycle and cell division.
pls can ny one give the important questions of lesson cell cycle and cell division
How the chromosome number is maintained in offspring?
are bivalent & tetrad the same thing?
Which plant material is suited for studying mitosis?
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?
Cells in G0 phase( quiescent phase) of cell cycle
a)exit cell cycle
b) suspend cell cycle
c) terminate cell cycle
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?
List the main differences between mitosis and meiosis.
WHICH STAGE OF CELL DIVISION YOU WILL SELECT TO STUDY THE MORPHOLOGY OF A CHROMOSOME AND WHY?
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
Plant x has 2n=4 chromosomes.
i)Sketch various stages of meosis of this plant.
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.
What is DNA replication?
during meiosis 1 .. in the prophase phase, when does terminalisation occur? in some buks it says in diplotene and in some it says diakinesis.. which one is correct?
which structure of animal cell forms the asters of spindle?
name the cells in which meiosis occurs?(1 mark)
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?
what are nonhistone proteins? give some example...
Describe the following:
(a) synapsis (b) bivalent (c) chiasmata
Draw a diagram to illustrate your answer.
what are haploid and diploid cells ???
why interphase is called resting phase of the cell?
what is hemozygous?
what is chiasmata?? plz explain in simple words
The point at which polytene chromosomes appear to be attached together is called what? n why?
"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! :)
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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?
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
multicellular organisms have division of labour? explain
where do mitosis and meiosis occur in animal and plants?
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.....
1)12
2)24
3)6
4)3
plz explain ur answer and tell how to do these type of questions
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?
what are sister and non sister chromatids???????
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 ) ?
what is the significance of mitosis and meiosis??
why interphase called resting phase?
HOW MANY MEIOTIC DIVISIONS ARE REQUIRED TO FORM 200 POLLEN GRAINS?
what is a genome?
a. how many genomes are there in a haploid and diploid cell?
b. a cell has 24 chromosomes before cell division . how many chromosomes will be there in -
1. one of the daughter cells resulting from mitotic division?
2. one resulting from meiotic division?
figure of different stages of meiosis
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)
difference between sister and non-sister chromatids
(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
At which stage of cell division the morphology of chromosomes can be distincly studied?
Give brief account of somatic cell division ?
Why does multicellular organism require 2 types of celldivision?Which of the two produces greaternumber of cells?How many?
what is the significance of mitosis and meiosis?
what is centripetal and centrifugal manner?
what is the difference b/w miosos and mitosis
what is terminalization?
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 the difference between cell cycle and cell division.
pls can ny one give the important questions of lesson cell cycle and cell division
How the chromosome number is maintained in offspring?
are bivalent & tetrad the same thing?
Which plant material is suited for studying mitosis?
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?
Cells in G0 phase( quiescent phase) of cell cycle
a)exit cell cycle
b) suspend cell cycle
c) terminate cell cycle
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?
List the main differences between mitosis and meiosis.
WHICH STAGE OF CELL DIVISION YOU WILL SELECT TO STUDY THE MORPHOLOGY OF A CHROMOSOME AND WHY?
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
Plant x has 2n=4 chromosomes.
i)Sketch various stages of meosis of this plant.
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.
What is DNA replication?
during meiosis 1 .. in the prophase phase, when does terminalisation occur? in some buks it says in diplotene and in some it says diakinesis.. which one is correct?
which structure of animal cell forms the asters of spindle?
name the cells in which meiosis occurs?(1 mark)
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?
what are nonhistone proteins? give some example...
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*.
Describe the following:
(a) synapsis (b) bivalent (c) chiasmata
Draw a diagram to illustrate your answer.
what are haploid and diploid cells ???
why interphase is called resting phase of the cell?
what is hemozygous?
what is chiasmata?? plz explain in simple words
(a) Prophase (b) Metaphase (c)Anaphase (d) Telophase
The point at which polytene chromosomes appear to be attached together is called what? n why?
"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! :)