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Question
When two organisms are similar in their external form but differ in their genetic make-up, they are referred as ______.
Options
genotype
phenotype
homozygous
heterozygous
MCQ
Fill in the Blanks
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Solution
When two organisms are similar in their external form but differ in their genetic make-up, they are referred as heterozygous.
Explanation:
Heterozygous individuals carry different alleles of a gene. Different genotypes, such as TT and Tt, can have the same external phenotype when one allele is dominant.
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