What do the letters P and F 2 represent in genetics?

The letter P represents the parental generation. The letter F represents the filial generation in genetics. F1 is called the first filial generation i.e., organisms resulting from the cross between the parents. F2 is the second filial generation by the self-fertilization of F1.

The phenomenon in which a single gene is responsible for more than one distinct, seemingly unrelated phenotypic effects is known as pleiotropy. Example: In sweet pea, the genes that control flower colour can also control the colour of the seed coat and red spots in the axils of the leaves.

E M B I B E

Biology Crash Course (Based on Revised Syllabus-2023)>Chapter 5 - Principles of Inheritance and Variation>Exercise>Q 49

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Which of the following is also called bleeder's disease?

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Important Questions on Principles of Inheritance and Variation

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Biology Crash Course (Based on Revised Syllabus-2023)>Chapter 5 - Principles of Inheritance and Variation>Exercise>Q 1

How many contrasting traits Mendel noted in garden pea?

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Biology Crash Course (Based on Revised Syllabus-2023)>Chapter 5 - Principles of Inheritance and Variation>Exercise>Q 2

What do the letters P and F₂ represent in genetics?

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Biology Crash Course (Based on Revised Syllabus-2023)>Chapter 5 - Principles of Inheritance and Variation>Exercise>Q 55

Who argued that pairing and separation of chromosomes would lead to the segregation of a pair of factors they carried?

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Biology Crash Course (Based on Revised Syllabus-2023)>Chapter 5 - Principles of Inheritance and Variation>Exercise>Q 63

Which condition of zygote cell will lead to birth of a normal human female child?

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Biology Crash Course (Based on Revised Syllabus-2023)>Chapter 5 - Principles of Inheritance and Variation>Exercise>Q 65

X-linked recessive gene is

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Biology Crash Course (Based on Revised Syllabus-2023)>Chapter 5 - Principles of Inheritance and Variation>Exercise>Q 6

The inheritance pattern of ABO blood groups in humans shows dominance, co-dominance and multiple allelism. Explain each concept with the help of blood group genotypes.

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Biology Crash Course (Based on Revised Syllabus-2023)>Chapter 5 - Solved Biology Paper-1>Part I-Section A>Q 2

What is Mendel's monohybrid phenotypic ratio?

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Biology Crash Course (Based on Revised Syllabus-2023)>Chapter 5 - Solved Biology Paper-2>Exercise>Q 37

What is pleiotropy?