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Crossing over between chromatids can occur only between homologous chromosomes.

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Important Questions on The Fundamental Unit of Life: Cell

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Science>Biology>The Fundamental Unit of Life: Cell>Cell Division
Determine which of the following statement is correct regarding the significance of meiosis
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Science>Biology>The Fundamental Unit of Life: Cell>Cell Division
During the meiosis cell division, reduction in the number of chromosomes and exchange of segments between chromatids take place analyse what are the significance of these two phenomena.
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Science>Biology>The Fundamental Unit of Life: Cell>Cell Division
Give one important feature of the following stage:
Telophase I
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Science>Biology>The Fundamental Unit of Life: Cell>Cell Division
Which of the following is not a stage of Mitosis?
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Science>Biology>The Fundamental Unit of Life: Cell>Cell Division
What kind of division occurs in pollen grains?
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Science>Biology>The Fundamental Unit of Life: Cell>Cell Division
What kind of division takes place in the reproductive cells?
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Science>Biology>The Fundamental Unit of Life: Cell>Cell Division
State six differences between mitosis and meiosis.
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Science>Biology>The Fundamental Unit of Life: Cell>Cell Division
Give one important feature of the following stage:
Telophase II
MEDIUM
Science>Biology>The Fundamental Unit of Life: Cell>Cell Division
Find the odd one out.
MEDIUM
Science>Biology>The Fundamental Unit of Life: Cell>Cell Division
In which stage does the crossing over occur?
MEDIUM
Science>Biology>The Fundamental Unit of Life: Cell>Cell Division

If roots cells have eighteen chromosomes it is most likely that gametes will have chromosomes :

HARD
Science>Biology>The Fundamental Unit of Life: Cell>Cell Division
Name and draw the following stage:
When four haploid cells are formed.
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Science>Biology>The Fundamental Unit of Life: Cell>Cell Division
In which stage do the centromeres split in meiosis?
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Science>Biology>The Fundamental Unit of Life: Cell>Cell Division

Note the relationship between the first two words and suggest the suitable word/words for the fourth place.

Maintaining the same no. of chromosomes:Mitosis::Meiosis: _____ (Maintaining the half number of chromosomes/ Maintaining the double number of chromosomes)

EASY
Science>Biology>The Fundamental Unit of Life: Cell>Cell Division
Give one important feature of the following stage:
Metaphase I
MEDIUM
Science>Biology>The Fundamental Unit of Life: Cell>Cell Division
How many meiotic divisions are necessary to produce hundred pollen grains?
HARD
Science>Biology>The Fundamental Unit of Life: Cell>Cell Division
Name and draw the following stage:
When the bivalents are formed.
MEDIUM
Science>Biology>The Fundamental Unit of Life: Cell>Cell Division
Differentiate between anaphase I and anaphase II.
HARD
Science>Biology>The Fundamental Unit of Life: Cell>Cell Division
With the help of suitable diagrams, explain the five stages of prophase-I of meiosis.
MEDIUM
Science>Biology>The Fundamental Unit of Life: Cell>Cell Division
If the cells of an organism (heterozygous) for two pairs of genes represented by Aa, Bb undergo meiosis then the possible genotypes of gametes are: