Read the following statements.
Statement I : The plasma membrane of the red blood cells has sugar polymers that protrude from its surface and the kind of sugar is controlled by the I gene.
Statement II : Starch is synthesised effectively by Bb heterozygotes and therefore, large starch grains are produced.
In the light of given statements, choose the correct answer from the options given below.

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Statement I is true but statement II is false.

Statement I is false but statement II is true.

Both statement I and statement II are false.

Both statement I and statement II are true.

answer is C.

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Detailed Solution

The ABO locus has three main alleles for A, B and O. If we imagine i gene codes for these three alleles then the type of sugar on RBC cell membrane is dependent on the allele that organism receive. Imagine that gene B is responsible for starch synthesis in pea. Grains with heterozygous condition would produce round seeds with intermediate size.

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