Select the incorrect statement:

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(C) $1$. $T.H.$ Morgan worked with Drosophila melanogaster, which is correct.$2$. $ABO$ blood grouping is controlled by three alleles $(I^A, I^B, i)$,

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The sex determination in honey bee is based on the number of $X$-chromosomes.

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(C) $1$. $T.H.$ Morgan worked with Drosophila melanogaster, which is correct.$2$. $ABO$ blood grouping is controlled by three alleles $(I^A, I^B, i)$, making it a classic example of multiple alleles, which is correct.$3$. Sex determination in honey bees is based on the number of sets of chromosomes (haplodiploidy), not the number of $X$-chromosomes. Honey bees do not have the $XY$ sex-determination system. Therefore, this statement is incorrect.$4$. Starch grain size in garden pea seeds is controlled by a single gene with two alleles ($B$ and $b$), where the size of the starch grain shows incomplete dominance. This is correct.

List-$I$	List-$II$
$A$. Incomplete Dominance	$I$. Human skin colour
$B$. Co-dominance	$II$. Inheritance of flower colour in Antirrhinum sp.
$C$. Pleiotropy	$III$. Phenylketonuria disease in humans
$D$. Polygenic inheritance	$IV$. $ABO$ blood group

List-$I$	List-$II$
$(a)$ Gain or loss of nitrogen base	$(i)$ Aneuploidy
$(b)$ Gain or loss of segment of $DNA$	$(ii)$ Frame shift
$(c)$ Gain or loss of whole set of chromosome	$(iii)$ Euploidy
$(d)$ Gain or loss of one chromosome	$(iv)$ Chromosomal aberration

Similar Questions

Select the correct match.

Why does a new organism differ from its parents in its characteristics?

Differences in twins suggest

Match List-$I$ with List-$II$:
List-$I$ List-$II$
$(a)$ Gain or loss of nitrogen base $(i)$ Aneuploidy
$(b)$ Gain or loss of segment of $DNA$ $(ii)$ Frame shift
$(c)$ Gain or loss of whole set of chromosome $(iii)$ Euploidy
$(d)$ Gain or loss of one chromosome $(iv)$ Chromosomal aberration

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