Heredity Class 10 | Complete Chapter 8 Explanation in One Shot for CBSE Board

[@CBSEGuidance]

Correction:- at 32:34
Self-Pollination: This happens when pollen from the anther of a flower fertilizes the ovule of the same flower or another flower on the same plant. It involves only one plant, so there’s no genetic contribution from another plant.
Cross-Pollination: This occurs when pollen from the anther of a flower fertilizes the ovule of a flower on a different plant of the same species. Cross-pollination involves two different plants, which leads to greater genetic diversity.
In summary:
If the pollen comes from the same plant, it’s self-pollination.
If the pollen comes from a different plant, it’s cross-pollination.

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What is pollen sir?

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Dekhne ke baad

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[@Glucotrose]

44:09
Parental Gen : BB×bb
Gametes : B, b
Gametes| b
B |Bb
F1:Bb×Bb
Gametes: B,b B,b
Gametes| B | b
B |BB|Bb
b |Bb|bb
F2 : BB,Bb,Bb,bb
Genotype Ratio = 1:2:1
Phenotype Ratio = 3:1
Percentage of white fur = 1/4 × 100 = 25%

[@CBSEGuidance]

Excellent 👌

[@respectall8850]

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[@CBSEGuidance]

Thanks 🤩

[@Glucotrose]

1:05:11
Practice Question Answer
Parent Generation: TTRR × ttrr
Gametes | tr
TR | TtRr
F1: TtRr × TtRr
Gametes: TR, Tr, tR, tr TR, Tr, tR, tr
F2 =
| TR | Tr | tR | tr
--------------------------------
TR | TTRR | TTRr | TtRR | TtRr
Tr | TTRr | TTrr | TtRr | Ttrr
tR | TtRR | TtRr | ttRR | ttRr
tr | TtRr | Ttrr | ttRr | ttrr
Tall round = 9
Tall wrinkled = 3
Short round = 3
Short wrinkled = 1
Genotype ratio = very complex
Phenotype ratio = 9 : 3 : 3 : 1

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Chspter 7
Divercity of living organism

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[@CBSEGuidance]

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