Select the wrong statement w.r.t. multiple alleles.

$\mathrm{ABO}$ blood type in man is an example of

1. Pleiotropy

2. Incomplete dominance

3. Co-dominance

4. Multiple allelism

Select the code for the correct answer from the options given below:

Choose the correct statements for co-dominance and incomplete dominance respectively from the following.

(i) Codominance
(ii) In complete dominance

(A) ${\mathrm{F}}_1$ generation did not resemble either of the two parents.
(B) In ${\mathrm{F}}_1$ generation new traits other than parents will be expressed.
(C) In ${\mathrm{F}}_1$ generation, the progeny resembles both parents equally.
(D) ${\mathrm{F}}_1$ generation will show a 3:1 ratio.

Assertion (A) : If the allele produces a less functional enzyme or non-functional enzyme the phenotype may be affected.
Reason (R) : The phenotype trait will not be dependent on the functioning of the unmodified allele.

The correct option among the following is:

Assertion (A): Dominance is not an autonomous feature of gene
Reason (R): Two traits show up equally in the heterozygote's phenotype in codominance

Study the following statements and identify the correct combinations. The comect statements are
(i) Multiple alleles can occupy different loci on the same chromosome
(ii) Two alleles of gene can form three genotypes in a diploid organism
(iii) When more than two alleles exist in a population of a specific organism is called multiple allelisin
(iv) The number of phenotypes that can occur for multiple alleles is given by the expression $\frac{\mathrm{n}(\mathrm{n}+1)}{2}$
(v) A well-known example of multiple allelism is ' $\mathrm{ABO}°$ blood groups