When experimenting with the factor of tallnes | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) The observed ratio of $73.97\%$ tall and $26.03\%$ dwarf is approximately $3:1$.According to Mendel's law of segregation,a phenotypic ratio of $3:

Vedclass · Accepted Answer

Hybrid tall and hybrid tall plant

Vedclass · Answer

(C) The observed ratio of $73.97\%$ tall and $26.03\%$ dwarf is approximately $3:1$.According to Mendel's law of segregation,a phenotypic ratio of $3:1$ in the $F_2$ generation is obtained when both parents are heterozygous (hybrid) for the trait.Cross: $Tt 	imes Tt ightarrow TT, Tt, Tt, tt$.Genotypes: $1$ $TT$ (pure tall),$2$ $Tt$ (hybrid tall),$1$ $tt$ (pure dwarf).Phenotypes: $3$ tall $(75\%)$ and $1$ dwarf $(25\%)$,which matches the experimental data.

When experimenting with the factor of tallness in $Pisum$ $sativum$,Mendel obtained the results $73.97\%$ tall and $26.03\%$ dwarf from one of the crosses. This shows that the parents are:

Similar Questions

$A$ tobacco plant which is heterozygous for albinism ($a$ recessive character) is self-pollinated. If $1200$ seeds are subsequently germinated,how many of the seedlings would have the parental genotype?

$A$ heterozygous tall plant is crossed with a dwarf plant. The proportion of dwarf plants in the offspring will be: (in $\%$)

If a heterozygous red-flowered plant is crossed with its pure-breeding red-flowered parent,the offspring will show:

When an individual has both alleles of a contrasting character,it is said to be:

In a Mendelian monohybrid cross,the phenotypic ratio in the $F_2$ generation is $3:1$. How many types of gametes are formed in the $F_1$ generation?

Vedclass Test Series

Exam Paper Generator

Online Exam Module