When two individuals are similar in external appearance but differ in their genetic make up, they are called as
Phenotype
Genotype
Homozygous
Heterozygous
Definitions / Explanation : Filial progeny/F1 generation
Match List $I$ with List $II$
List $I$ | List $II$ |
$A$. Two or more alternative forms of a gene |
$I$. Backcross |
$B$. Cross of $F_1$ progeny with homozygous recessive parents | $II$. ploidy |
$C$. Cross of $F_1$ progeny with any of the parents | $III$. Allele |
$D$. Number of chromosome sets in plant | $IV$. Test cross |
Choose the correct answer from the options given below:
Test cross is
The production of gametes by the parents, formation of zygotes, the $\mathrm{F}_{1}$ and $\mathrm{F}_{2}$ plants, can be understood from a diagram called:
Pure tall plants are crossed with pure dwarf plants. In the $F_1$ generation all plants were tall. These tall plants of $F_1$ generation were selfed and the ratio of tall to dwarf plants obtained was $3 : 1$. This is called