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Exploring the Effects of Modified Alleles on Enzyme Production and Phenotype Var...

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Exploring the Effects of Modified Alleles on Enzyme Production and Phenotype Var...

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Questions and Answers

Which of the following is true about the modified allele?

It may produce the normal/less efficient enzyme, a non-functional enzyme, or no enzyme at all. (correct)

It always produces a non-functional enzyme.

It only produces no enzyme at all.

It always produces the normal/less efficient enzyme.

What is the effect of the modified allele on the phenotype?

It may be affected if the allele produces a non-functional enzyme or no enzyme. (correct)

It is always dependent on the functioning of the unmodified allele.

It is always dominant over the unmodified allele.

It always results in the transformation of substrate S.

Which allele represents the original phenotype?

The modified allele.

None of the alleles.

Both the modified and unmodified alleles.

The unmodified allele. (correct)

What is the relationship between the dominant and recessive alleles?

The dominant allele is generally the unmodified allele. Signup and view all the answers

Why is the recessive trait seen in the example above?

Because the modified allele produces no enzyme at all. Signup and view all the answers

Which gene controls ABO blood grouping in human beings?

Gene I Signup and view all the answers

How many alleles does the gene I have?

Three Signup and view all the answers

Which allele does not produce any sugar?

i Signup and view all the answers

Which alleles are completely dominant over i?

I A and I B Signup and view all the answers

What happens when I A and I B are present?

Both alleles express equally Signup and view all the answers