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Which of the following statements are false?
$I.$ A Dominant allele determines the phenotype when paired with a recessive allele
$II.$ A recessive allele is weaker than a dominant allele
$III.$ A recessive allele do not shows its effects when paired with a dominant allele
$IV.$ A dominant allele is always better for an organism
$II, I$ and $IV$
$II, III$ and $IV$
$I, II$ and $III$
$I, III$ and $IV$
Solution
A recessive allele is not weaker than the dominant allele. It (recessive allele) does not shows its effect (in the presence of dominant allele) because of modified or different enzymes. A recessive allele make its gene product even when paired with the dominant allele. It is not necessary that dominant allele always better (in the case of dominant disease)
Similar Questions
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:
