Question
Download Solution PDFThe alleles of a gene do not show any blending and both the characters are recovered as such in the F2 generation. This statement is
This question was previously asked in
UP TGT Biology 2021 Official Paper
Answer (Detailed Solution Below)
Option 2 : Law of Segregation.
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UP TGT Hindi FT 1
125 Qs.
500 Marks
120 Mins
Detailed Solution
Download Solution PDFKey Points
Gregor Mendel gave the Laws of Inheritance based on his experiments on Pisum sativum (garden pea):
- Law of Dominance -
- It states that characters are controlled by discrete units called factors (alleles) which occur in pairs.
- It also states that in a dissimilar pair of alleles, one of the alleles is expressed (dominant) over the other (recessive).
- Law of Segregation -
- It states that alleles do not show any blending and both parental characters are recovered in the F2 generation.
- It also states that during gamete formation, alleles of a pair separate in such a way that one gamete receives only one of the two alleles of a pair.
- It is also known as the Law of purity of gametes.
- It can be proved with a monohybrid cross.
- Law of Independent Assortment -
- It states that when 2 pairs of traits are combined in a hybrid, segregation of one pair is independent of the other pair.
- It can be proved with a dihybrid cross.
Additional Information
- Law of Natural Selection -
- It was given by Charles Darwin.
- It states that individuals with more favourable characters survive better and leave more progeny that again survives better and are hence selected by nature.
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