Biology, asked by sumukhasreenidh4496, 10 months ago

Explain mendel monohybrid cross with a flower example

Answers

Answered by rishitdas14
1
For eg
Tt is self crossed with Tt
Its outcome using punet square method will be TT,Tt,TT,Tt (T is the dominant character and t is the reccesive character of flower)
Let T be the acronym for Rose
Answered by tsonawane708
0

Answer: HEY MATE (^_^)

Explanation:

A cross between pure breeding tall (TT) and dwarf (tt) varieties gives all heterozygous tall (Tt) progeny in F  

1

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 generation. Selfing of F  

1

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 hybrid gives tall and dwarf F  

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 progeny in 3: 1 ratio respectively. Since allele for tallness (T) is dominant over that of dwarfism (t); heterozygous dominant genotype (Tt) gives "tall" phenotype and dwarfism is masked from being expressed. Both homozygous dominant (TT) and heterozygous dominant (Tt) exhibit "tall" phenotype while homozygous recessive genotype gives dwarf phenotype; hence phenotypic ratio is 3 tall: 1 dwarf but the genotypic ratio is 1 TT: 2 Tt: 1 tt.  

Parent generation             TT x tt

F  

1

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  generation         Tt

Selfing                                  Tt x Tt

F  

2

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 generation         TT Tt  Tt   tt

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